CCNA4 FINAL 100/100

1. Refer to the exhibit. A network administrator is trying to configure a router to use SDM. After this configuration shown in the exhibit is applied, the SDM interface of the router is still not accessible. What is the cause of the problem?
*The username and password are not configured correctly.
The authentication method is not configured correctly.
The HTTP timeout policy is not configured correctly.
The vtys are not configured correctly.
2. Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing?

The PVC to R1 must be point-to-point.
LMI types must match on each end of a PVC.
The frame relay PVCs cannot be established between Cisco and non-Cisco routers.
*The IETF parameter is missing from the frame-relay map ip 10.10.10.1 201 command.

3. Refer to the exhibit. An ACL called Managers already exists on this router. What happens if the network administrator issues the commands as shown in the exhibit?

The new ACL overwrites the existing ACL.
The network administrator will receive an error message.
*The existing ACL is modified to include the new command.
A second Managers ACL is created that contains only the new command.
4. Refer to the exhibit. A network administrator is trying to backup the IOS software on R1 to the TFTP server. He receives the error message that is shown in the exhibit, and cannot ping the TFTP server from R1. What is an action that can help to isolate this problem?

Use correct source file name in the command.
Verify that the TFTP server software is running.
Make sure that there is enough room on the TFTP server for the backup.
*Check that R1 has a route to the network where the TFTP server resides.
5. What can a network administrator do to recover from a lost router password?
use the copy tftp: flash: command
boot the router to bootROM mode and enter the b command to load the IOS manually
telnet from another router and issue the show running-config command to view the password
*boot the router to ROM monitor mode and configure the router to ignore the startup configuration when it initializes
6. Which combination of authentication and Layer 2 protocol should be used to establish a link between a Cisco and a non-Cisco router without sending authentication information in plain text?
CHAP and HDLC
*CHAP and PPP
PAP and HDLC
PAP and PPP
7. Refer to the exhibit. Which statement correctly describes how Router1 processes an FTP request that enters interface s0/0/0 and is destined for an FTP server at IP address 192.168.1.5?

The router matches the incoming packet to the statement that was created by the access-list 201 deny icmp 192.168.1.0 0.0.0.255 any command, continues comparing the packet to the remaining statements in ACL 201 to ensure that no subsequent statements allow FTP, and then the router drops the packet.
The router reaches the end of ACL 101 without matching a condition and drops the packet because there is no statement that was created by the access-list 101 permit ip any any command.
*The router matches the incoming packet to the statement that was created by the access-list 101 permit ip any 192.168.1.0 0.0.0.255 command and allows the packet into the router.
It matches the incoming packet to the statement that was created by the access-list 201 permit ip any any command and allows the packet into the router.
8. Which three statements accurately describe attributes of a security policy? (Choose three.)
*It creates a basis for legal action if necessary.
It should not be altered once it is implemented.
*It defines a process for managing security violations.
It focuses primarily on threats from outside of the organization.
*It defines acceptable and unacceptable use of network resources.
It provides step-by-step procedures to harden routers and other network devices.
9. Refer to the exhibit. The network administrator creates a standard access control list on Router1 to prohibit traffic from the 172.16.1.0/24 network from reaching the 172.16.2.0/24 network while still permitting Internet access for all networks. On which router interface and in which direction should it be applied?

interface Fa0/0, inbound
interface Fa0/0, outbound
interface Fa0/1, inbound
*interface Fa0/1, outbound
10. Refer to the exhibit. Why are the routers unable to establish a PPP session?

*The usernames are misconfigured.
The IP addresses are on different subnets.
The clock rate is configured on the wrong end of the link.
The CHAP passwords must be different on the two routers.
Interface serial 0/0/0 on Router1 must connect to interface serial 0/0/1 on Router2.
11. What are two main components of data confidentiality? (Choose two.)
checksum
digital certificates
**encapsulation
**encryption
hashing
12. A technician is talking to a colleague at a rival company and comparing DSL transfer rates between the two companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. What is the explanation for why company 1 reports higher download speeds than company 2 reports?
Company 1 only uses microfilters at branch locations.
Company 1 has a lower volume of POTS traffic than company 2 has.
**Company 2 is located farther from the service provider than company 1 is.
Company 2 shares the connection to the DSLAM with more clients than company 1 shares with.
13. What is the result when the command permit tcp 192.168.4.0 0.0.3.255 any eq 23 is entered in a named access control list and applied on the inbound interface of a router?
All traffic from 192.168.4.0/24 larger than 23 bytes is permitted.
FTP traffic from the 192.168.4.0/24 network is permitted.
TCP traffic destined to 192.168.4.0/24 network is permitted.
**Telnet traffic originating from 192.168.4.0/22 is permitted out.
14. What are two major characteristics of a worm? (Choose two.)
**exploits known vulnerabilities
attaches itself to another program
executed by a predefined time or event
masquerades as an accepted program
**copies itself to the host and selects new targets
15. While configuring a Frame Relay connection, when should a static Frame Relay map be used?
the remote router is a non-Cisco router
the local router is configured with subinterfaces
**broadcast traffic and multicast traffic over the PVC must be controlled
globally significant rather than locally significant DLCIs are being used
16. A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?
Configure static NAT.
Configure dynamic NAT.
Configure static NAT with overload.
**Configure dynamic NAT with overload.
17. Refer to the exhibit. Which DHCP requests will R1 answer?

all DHCP requests that R1 receives
requests that are broadcast to 10.0.1.255
DNS requests with a destination of 10.0.1.3
**requests that are received on the FastEthernet 0/0 interface
requests that come from any networks that are not listed as excluded
18. What are the symptoms when the s0/0/0 interface on a router is attached to an operational CSU/DSU that is generating a clock signal, but the far end router on the point-to-point link has not been activated?
show controllers indicates cable type DCE V.35. show interfaces s0/0/0 indicates serial down, line protocol down.
show controllers indicates cable type DCE V.35. show interfaces s0/0/0 indicates serial up, line protocol down.
**show controllers indicates cable type DTE V.35. show interfaces s0/0/0 indicates serial up, line protocol down.
show controllers indicates cable type DTE V.35. show interfaces s0/0/0 indicates serial down, line protocol down.
19. A technician has been asked to run Cisco SDM one-step lockdown on the router of a customer. What will be the result of this process?
Traffic is only forwarded from SDM-trusted Cisco routers.
Security testing is performed and the results are saved as a text file stored in NVRAM.
**The router is tested for potential security problems and any necessary changes are made.
All traffic entering the router is quarantined and checked for viruses before being forwarded.
20. Refer to the exhibit. A network administrator has issued the commands that are shown on Router1 and Router2. A later review of the routing tables reveals that neither router is learning the LAN network of the neighbor router. What is most likely the problem with the RIPng configuration?

The serial interfaces are in different subnets.
**The RIPng process is not enabled on interfaces.
The RIPng processes do not match between Router1 and Router2.
The RIPng network command is missing from the IPv6 RIP configuration.
21. Refer to the exhibit. Which statement is true about the Frame Relay connection?

The Frame Relay connection is in the process of negotiation.
**A congestion control mechanism is enabled on the Frame Relay connection.
The “ACTIVE” status of the Frame Relay connection indicates that the network is experiencing congestion.
Only control FECN and BECN bits are sent over the Frame Relay connection. No data traffic traverses the link.
22. When configuring a Frame Relay connection, what is the purpose of Inverse ARP?
to assign a DLCI to a remote peer
to disable peer requests from determining local Layer 3 addresses
to negotiate LMI encapsulations between local and remote Frame Relay peers
**to create a mapping of DLCI to Layer 3 addresses that belong to remote peers
23. When NAT is in use, what is used to determine the addresses that can be translated on a Cisco router?
**access control list
routing protocol
inbound interface
ARP cache
24. An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?
When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newer technology.
Incorrect IPv4 addresses are entered on the router interfaces.
RIPng is incompatible with dual-stack technology.
**IPv4 is incompatible with RIPng.
25. Refer to the exhibit. Router1 is not able to communicate with its peer that is connected to this interface. Based on the output as shown, what is the most likely cause?

interface reset
**unplugged cable
improper LMI type
PPP negotiation failure
26. Which two functions are provided by the Local Management Interface (LMI) that is used in Frame Relay networks? (Choose two.)
**simple flow control
error notification
congestion notification
mapping of DLCIs to network addresses
**exchange of information about the status of virtual circuits
27. Refer to the exhibit. A technician issues the show interface s0/0/0 command on R1 while troubleshooting a network problem. What two conclusions can be determined by from the output shown? (Choose two.)

**The bandwidth has been set to the value of a T1 line.
This interface should be configured for PPP encapsulation.
**There is no failure indicated in an OSI Layer 1 or Layer 2.
The physical connection between the two routers has failed.
The IP address of S0/0/0 is invalid, given the subnet mask being used.
28. Refer to the exhibit. Which statement is true about the CSU/DSU device?
It connects asynchronous devices to a LAN or WAN through network and terminal emulation software.
It uses a multiport internetworking device to switch traffic such as Frame Relay, ATM, or X.25 over the WAN.
**It provides termination for the digital signal and ensures connection integrity through error correction and line monitoring.
It converts the digital signals produced by a computer into voice frequencies that can be transmitted over the analog lines of the public telephone network.
29. Where does a service provider assume responsibility from a customer for a WAN connection?
local loop
DTE cable on router
**demarcation point
demilitarized zone

30. What are two LCP options that can be configured for PPP? (Choose two.)
EAP
**CHAP
IPCP
CDPCP
**stacker
31. Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the DC router to the Orlando router?

DLCI 123
**DLCI 321
10.10.10.25
10.10.10.26
MAC address of the Orlando router
32. Which two statements are true about creating and applying access lists? (Choose two.)
**There is an implicit deny at the end of all access lists.
**One access list per port, per protocol, per direction is permitted.
Access list entries should filter in the order from general to specific.
The term “inbound” refers to traffic that enters the network from the router interface where the ACL is applied.
Standard ACLs should be applied closest to the source while extended ACLs should be applied closest to the destination.
33. Which statement is true about wildcard masks?
Inverting the subnet mask will always create the wildcard mask.
The wildcard mask performs the same function as a subnet mask.
A network or subnet bit is identified by a “1″ in the wildcard mask.
**IP address bits that must be checked are identified by a “0″ in the wildcard mask.
34. Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from this DHCP server. The output of the debug ip dhcp server command shows “DHCPD: there is no address pool for 192.168.1.1″. What is the problem?

The 192.168.1.1 address has not been excluded from the DHCP pool.
**The pool of addresses for the 192Network pool is incorrect.
The default router for the 192Network pool is incorrect.
The 192.168.1.1 address is already configured on Fa0/0.
35.Refer to the exhibit. A network administrator is tasked with completing the Frame Relay topology that interconnects two remote sites. How should the point-to-point subinterfaces be configured on HQ to complete the topology?

frame-relay interface-dlci 103 on Serial 0/0/0.1
frame-relay interface-dlci 203 on Serial 0/0/0.2
**frame-relay interface-dlci 301 on Serial 0/0/0.1
frame-relay interface-dlci 302 on Serial 0/0/0.2
frame-relay map ip 192.168.1.1 103 broadcast on Serial 0/0/0.1
frame-relay map ip 192.168.2.2 203 broadcast on Serial 0/0/0.2
frame-relay map ip 192.168.1.1 301 broadcast on Serial 0/0/0.1
frame-relay map ip 192.168.2.2 302 broadcast on Serial 0/0/0.2
36. What are two effective measures for securing routers? (Choose two.)
Protect all active router interfaces by configuring them as passive interfaces.
Configure remote administration through VTY lines for Telnet access.
**Use quotes or phrases to create pass phrases.
**Disable the HTTP server service.
Enable SNMP traps.
37. A network administrator is instructing a technician on best practices for applying ACLs. Which suggestion should the administrator provide?
Named ACLs are less efficient than numbered ACLs.
Standard ACLs should be applied closest to the core layer.
ACLs applied to outbound interfaces are the most efficient.
**Extended ACLs should be applied closest to the source that is specified by the ACL.
38. Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 and R3 do not receive RIP routing updates. On the basis of the provided configuration, what should be enabled on router R2 to remedy the problem?

proxy ARP
CDP updates
SNMP services
**RIP authentication
39. Refer to the exhibit. Partial results of the show access-lists and show ip interface FastEthernet 0/1 commands for router Router1 are shown. There are no other ACLs in effect. Host A is unable to telnet to host B. Which action will correct the problem but still restrict other traffic between the two networks?

Apply the ACL in the inbound direction.
Apply the ACL on the FastEthernet 0/0 interface.
**Reverse the order of the TCP protocol statements in the ACL.
Modify the second entry in the list to permit tcp host 172.16.10.10 any eq telnet .
40. What will be the result of adding the command ip dhcp excluded-address 192.168.24.1 192.168.24.5 to the configuration of a local router that has been configured as a DHCP server?
Traffic that is destined for 192.168.24.1 and 192.168.24.5 will be dropped by the router.
Traffic will not be routed from clients with addresses between 192.168.24.1 and 192.168.24.5.
**The DHCP server will not issue the addresses ranging from 192.168.24.1 to 192.168.24.5.
The router will ignore all traffic that comes from the DHCP servers with addresses 192.168.24.1 and 192.168.24.5.
41. Refer to the exhibit. What can be concluded from the exhibited output of the debug ip nat command?

The 10.10.10.75 host is exchanging packets with the 192.168.0.10 host.
The native 10.1.200.254 address is being translated to 192.168.0.10.
**The 192.168.0.0/24 network is the inside network.
Port address translation is in effect.
42. Refer to the exhibit. Company ABC expanded its business and recently opened a new branch office in another country. IPv6 addresses have been used for the company network. The data servers Server1 and Server2 run applications which require end-to-end functionality, with unmodified packets that are forwarded from the source to the destination. The edge routers R1 and R2 support dual stack configuration. What solution should be deployed at the edge of the company network in order to successfully interconnect both offices?

a new WAN service supporting only IPv6
NAT overload to map inside IPv6 addresses to outside IPv4 address
**a manually configured IPv6 tunnel between the edge routers R1 and R2
static NAT to map inside IPv6 addresses of the servers to an outside IPv4 address and dynamic NAT for the rest of the inside IPv6 addresses
43. A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?
**Conduct a performance test and compare with the baseline that was established previously.
Interview departmental secretaries and determine if they think load time for web pages has improved.
Determine performance on the intranet by monitoring load times of company web pages from remote sites.
Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.
44. Refer to the exhibit. From the output of the show interfaces and ping commands, at which layer of the OSI model is a fault indicated?

application
transport
**network
data link
physical
45. While troubleshooting a problem with an e-mail server, an administrator observes that the switch port used by the server shows “up, line protocol up”. The administrator cannot ping the server. At which layer of the OSI model is the problem most likely to be found?
application layer
**network layer
data link layer
physical layer
46. Which variable is permitted or denied by a standard access control list?
protocol type
**source IP address
source MAC address
destination IP address
destination MAC address
47. A technician is editing and reapplying ACL 115 to a router, what is the result of adding the command access-list 115 permit tcp any 172.16.0.0 0.0.255.255 established to the ACL when it is reapplied to the router?
All traffic that comes from 172.16.0.0/16 will be allowed.
All TCP traffic that is destined for 172.16.0.0/16 is permitted.
Any SYN packets that are sent to 172.16.0.0/16 will be permitted.
**Responses to traffic that originates from the 172.16.0.0/16 network are allowed.
48. Because of a remote-procedure call failure, a user is unable to access an NFS server. At what layer of the TCP/IP model does this problem occur?
network layer
data link layer
physical layer
**application layer
49. Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?

interface reset
unplugged cable
improper LMI type
**PPP negotiation failure
50. Which encapsulation protocol when deployed on a Cisco router over a serial interface is only compatible with another Cisco router?
PPP
SLIP
**HDLC
Frame Relay

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Cisco ccna v4.0 practice

CCIE LAP CCNA CCNA - Hotspot Questions CCNA 640-802 VLAN / VTP Practice Questions CCNA 640-802 WAN Practice Questions CCNA Drag and Drop Questions CCNA Exploration 1 - Module 2 Exam Answers Version 4.0 100% CCNA full course including simulators dumps etc CCNA Implementation SIM CCNA lab CCNA Practice Certification Exam # 1 - CCNA Exploration: Accessing the WAN (Version 4.0) CCNA Practice Certification Exam 2 CCNA Practice Tests 3.1.0 CCNA Troubleshooting Questions 1 CCNA Troubleshooting Questions 2 CCNA VOICE Official Guide CCNA WAN Questions CCNA: Cisco Certified Network Associate: Fast Pass CCNP Lab Cisco IOS access lists: 10 things you should know

Cisco Network Magic Pro 5.0.8282 Cisco Press ICND1 2nd Edition Jan 2008 Cisco Training CCNA IP Addressing - Part 1 of 5 CONFIGURING STATIC ROUTING RIP IGRP OSPF ON CISCO ROUTER Ebook.CCNA Security Official Exam Certification Guide Exam 640-553 Exam Certifica.158720220 GNS3-Topology: CCNA CCNP Full Mesh Topology Template IP adress Latest News CCNA MCSA Network Simulation PacketTrap Ping Scan 1.1.3301 Pix Firewall Simulator Subnetting in 6 easy steps - part 1 Take Assessment - EWAN Final Exam - CCNA Exploration: Accessing the WAN (Version 4.0) TCP/IP and the OSI Reference Model BSCI Knowledgenet Labs BSMSN Knowledgenet Labs

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CCNA v4 - E4 - Module 8 (100%)

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1. Excessive broadcasts are generally a symptom of a problem at which layer?

  data link

2. Refer to the exhibit. Users at Branch B are reporting trouble accessing a corporate website running on a server that is located at HQ. HQ and Branch A users can access the website. R3 is able to ping 10.10.10.1 successfully but not 10.10.10.2. The users at Branch B can access servers at Branch A. Which two statements are true aboutthe troubleshooting efforts? (Choose two.)

  Frame Relay at R3 and R2 should be tested to narrow the scope of the problem.
  An ACL entry error could cause the failure at Layer 4 in either R3 or R2.

3. What is one example of a physical layer problem?

  incorrect clock rate

4. Which two components should be taken into consideration when establishing a network baseline? (Choose two.)

  information about the network design
  expected performance under normal operating conditions

5. Refer to the exhibit. Which two steps should be taken during the process of creating network documentation? (Choose two.)

  Record the information about the devices discovered in the entire network, including the remote locations.
  Transfer any information about the devices from the network configuration table that corresponds to a component of the topology diagram.

6. A technician has been asked to troubleshoot an existing switched network but is unable to locate documentation for the VLAN configuration. Which troubleshooting tool allows the technician to map and discover VLAN and port assignments?

  network analyzer

7. What combination of IP address and wildcard mask should be used to specify only the last 8 addresses in the subnet 192.168.3.32/28?

  192.168.3.40 0.0.0.7

8. Information about which OSI layers of connected Cisco devices can be verified with the show cdp neighbors command?

  Layer 1, Layer 2, and Layer 3

9. A technician has been asked to make several changes to the configuration and topology of a network and then determine the outcome of the changes. What tool can be used to determine the overall effect caused by the changes?

  baselining tool

10. Which two pieces of information are typically found on a logical network diagram? (Choose two.)

  interface identifiers
  DLCI for virtual circuits

11. Refer to the exhibit. Which three pieces of information can be determined by analyzing the output shown? (Choose three.)

  A carrier detect signal is present.
  Keepalives are being received successfully.
  The LCP negotiation phase is complete.

12. Clients across the company are reporting poor performance across all corporate applications running in the data center. Internet access and applications running across the corporate WAN are performing normally. The network administrator observes a continual broadcast of random meaningless traffic (jabber) on the application server LAN in the data center on a protocol analyzer. How should the administrator start troubleshooting?

  The jabber in the data center indicates a local physical layer problem. Use the protocol analyzer to determine the source of the jabber, and then check for a recent NIC driver update or bad cabling.
13. When gathering symptoms for troubleshooting a network problem, which step could result in getting an external administrator involved in the process?

  determining ownership

14. A network administrator has received complaints that users on a local LAN can retrieve e-mail from a remote e-mail server but are unable to open web pages on the same server. Services at which two layers of the OSI model should be investigated during the troubleshooting process? (Choose two.)

  transport layer
  application layer

15. Users are complaining of very long wait times to access resources on the network. The show interface command reveals collision counts far above the network baseline. At which OSI layer should the administrator begin troubleshooting?

  physical

16. Which troubleshooting approach is suggested for dealing with a complex problem that is suspected of being caused by faulty network cabling?

  bottom up

17. Which two statements are true concerning logical networking models? (Choose two.)

  The top layer of the TCP/IP model combines the functions of the top three OSI layers.
  The TCP/IP network access layer corresponds to the OSI physical and data link layers.

18. Which three approaches should be used when attempting to gather data from users for troubleshooting? (Choose three.)

  Obtain information by asking simple pertinent questions.
  Determine if the problem is related to time or a specific event.
  Determine if the user can re-create the problem or events leading to the problem.

19. Refer to the exhibit. Users on the Internal LAN are unable to connect to the www server. The network administrator pings the server and verifies that NAT is functioning correctly. Which OSI layer should the administrator begin to troubleshoot next?

  application

20. Encapsulation errors from mismatched WAN protocols on a serial link between two routers indicate a problem at which OSI layer?

  data link   

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CCNA v4 - E4 - Module 7 (100%) -> latest

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1. Refer to the exhibit. IPv6 address 2006:1::1/64 eui-64 has been configured on the router FastEthernet0/0 interface. Which statement accurately describes the EUI-64 identifier configuration?

The configuration will derive the interface portion of the IPv6 address from the MAC address of the interface.

2. Refer to the exhibit. Which address or addresses represent the inside global address?

209.165.20.25

3. Your organization is issued the IPv6 prefix of 2001:0000:130F::/48 by your service provider. With this prefix, how many bits are available for your organization to create subnetworks?

16

4. What are two benefits of NAT? (Choose two.)

It saves public IP addresses.
It adds a degree of privacy and security to a network.

5. What is true regarding the differences between NAT and PAT?

PAT uses unique source port numbers to distinguish between translations.

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6. A network administrator wants to connect two IPv6 islands. The easiest way is through a public network that uses only IPv4 equipment. What simple solution solves the problem?

Use tunneling to encapsulate the IPv6 traffic in the IPv4 protocol.

7. Refer to the exhibit. Which two addresses could be assigned to traffic leaving S0 as a result of the statement ip nat pool Tampa 179.9.8.96 179.9.8.111 netmask 255.255.255.240? (Choose two.)

179.9.8.98
179.9.8.101

8. Refer to the exhibit. The FTP server has an RFC 1918 private address. Users on the Internet need to connect to the FTP server on the Fa0/0 LAN of R1. Which three configurations must be completed on R1? (Choose three.)

open port 20
open port 21
NAT with port forwarding

9. After activating IPv6 routing on a Cisco router and programming IPv6 addresses on multiple interfaces, what is the remaining step to activate RIPng?

Enter the interface programming mode for each IPv6 interface and enable IPng RIP.

10. Refer to the exhibit. How many IPv6 broadcast domains exist in this topology?

0

11. Refer to the exhibit. Traffic exiting R1 is failing translation. What part of the configuration is most likely incorrect?

access-list statement

12. Refer to the exhibit. According to the output, how many addresses have been successfully assigned by this DHCP server?

8

13. Refer to the exhibit. What is the purpose of the command marked with an arrow shown in the partial configuration output of a Cisco broadband router?

defines which addresses can be translated

14. A technician has been told by a supervisor to always clear any dynamic translations before attempting to troubleshoot a failed NAT connection. Why has the supervisor issued these instructions?

Because entries can be cached for long periods of time, the supervisor wants to prevent decisions being made based on old data.

15. Refer to the exhibit. Which two statements about the configuration are true? (Choose two.)

Traffic from the 10.1.1.0 network will be translated.
Permitted traffic gets translated to a single inside global IP address.

16. Refer to the exhibit. R1 is performing NAT for the 10.1.1.0/24 network, and R2 is performing NAT for the 192.168.1.2/24 network. What would be valid destination IP address for HostA to put in its IP header when communicating with the web server?

172.30.20.2

17. What type of NAT should a network administrator use to ensure that a web server on the inside network is always available to the outside network?

static NAT

18. How many bits of an IPv6 address are used to identify the interface ID?

64

19. Refer to the exhibit. A technician used SDM to enter the NAT configuration for a Cisco router. Which statement correctly describes the result of the configuration?

A user on the outside network sees a request addressed from 192.168.1.3 using port 80.

20. Refer to the exhibit. A network technician determines DHCP clients are not working properly. The clients are receiving IP configuration information from a DHCP server configured on the router but cannot access the Internet. From the output in the graphic, what is the most likely problem?

The pool does not have a default router defined for the clients.

21. Refer to the exhibit. On the basis of the configuration shown, how should the pool of the excluded addresses be assigned to key hosts on the network, such as router interfaces, printers, and servers?

The addresses are statically assigned by the network administrator.

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CCNA v4 - E4 - Module 6 (100%)

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1. Which two Layer 1 requirements are outlined in the Data-over-Cable Service Interface Specification (DOCSIS)? (Choose two.)

channel widths
modulation techniques

2. Which is an example of symmetric-key encryption?

pre-shared key

3. Which two statements are valid solutions for a cable ISP to reduce congestion for users? (Choose two.)

allocate an additional channel
subdivide the network to reduce users on each segment

4. While monitoring traffic on a cable network, a technician notes that data is being transmitted at 38 MHz. Which statement describes the situation observed by the technician?

Data is being transmitted from the subscriber to the headend.

5. After conducting research to learn about common remote connection options for teleworkers, a network administrator has decided to implement remote access over broadband to establish VPN connections over the public Internet. What is the result of this solution?

The connection has increased security and reliable connectivity. Users need a remote VPN router or VPN client software.

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6. Data confidentiality through a VPN is achieved through which two methods? (Choose two.)

encryption
encapsulation

7. Data confidentiality through a VPN can be enhanced through the use of which three encryption protocols? (Choose three.)
AES
DES
RSA

8. What two protocols provide data authentication and integrity for IPsec? (Choose two.)
AH
ESP

9. A technician has been asked to configure a broadband connection for a teleworker. The technician has been instructed that all uploads and downloads for the connection must use existing phone lines. Which broadband technology should be used?

DSL

10. What are the three main functions of a secure VPN? (Choose three.)

authentication
data confidentiality
data integrity

11. A company is using WiMAX to provide access for teleworkers. What home equipment must the company provide at the teleworker's site?

a WiMAX receiver

12. Which two methods could an administrator use to authenticate users on a remote access VPN? (Choose two.)
digital certificates
smart cards

13. Which two statements about DSL are true? (Choose two.)

local loop can be up to 3.5 miles (5.5km)
user connections are aggregated at a DSLAM located at the CO

14. Which two features can be associated with the Worldwide Interoperability for Microwave Access (WiMAX) telecommunication technology? (Choose two.)

covers areas as large as 7,500 square kilometers
connects directly to the Internet through high-bandwidth connections

15. Refer to the exhibit. All users have a legitimate purpose and the necessary persissions to access the Corporate network. Based on the topology shown, which locations are able to establish VPN connectivity with the Corporate network?

All locations can support VPN connectivity.

16. Which statement describes cable?

Delivering services over a cable network requires downstream frequencies in the 50 to 860 MHz range, and upstream frequencies in the 5 to 42 MHz range.

17. Which two protocols can be used to encapsulate traffic that is traversing a VPN tunnel? (Choose two.)

IPsec
PPTP

18. Refer to the exhibit. A teleworker is connected over the Internet to the HQ Office. What type of secure connection can be established between the teleworker and the HQ Office?

a remote-access VPN

19. Refer to the exhibit. A VPN tunnel has been established between the HQ Office and the Branch Office over the public Internet. Which three mechanisms are required by the devices on each end of the VPN tunnel to protect the data from being intercepted and modified? (Choose three.)

The two parties must establish a secret key used by encryption and hash algorithms.
The two parties must agree on the encryption algorithm to be used over the VPN tunnel.
The devices must be authenticated before the communication path is considered secure.

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1. Refer to the exhibit. What will be the effect of the configuration that is shown?
  Users attempting to access hosts in the 192.168.30.0/24 network will be required to telnet to R3.

2. Which three parameters can ACLs use to filter traffic? (Choose three.)

  protocol suite
  source address
  destination address

3. Refer to the exhibit. How does this access list process a packet with the source address 10.1.1.1 and a destination of 192.168.10.13?

  It is dropped because it does not match any of the items in the ACL.

4 .Which two statements are correct about extended ACLs? (Choose two)

  Extended ACLs evaluate the source and destination addresses.
  Port numbers can be used to add greater definition to an ACL.

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5. Where should a standard access control list be placed?

  close to the destination

6. Which three statements describe ACL processing of packets? (Choose three.)

  An implicit deny any rejects any packet that does not match any ACL statement.
  A packet can either be rejected or forwarded as directed by the statement that is matched.
  Each statement is checked only until a match is detected or until the end of the ACL statement list.

7. Refer to the exhibit. How will Router1 treat traffic matching the time-range requirement of EVERYOTHERDAY?

  Telnet traffic entering fa0/0 from 10.1.1.254/24 destined to the 172.16.1.0/24 network is permitted.

8. Which two statements are true regarding the following extended ACL? (Choose two.)
access-list 101 deny tcp 172.16.3.0 0.0.0.255 any eq 20
access-list 101 deny tcp 172.16.3.0 0.0.0.255 any eq 21
access-list 101 permit ip any any

  FTP traffic originating from network 172.16.3.0/24 is denied.
  Web traffic originating from 172.16.3.0 is permitted.

9. Which two statements are true regarding the significance of the access control list wildcard mask 0.0.0.7? (Choose two.)

  The first 29 bits of a given IP address will be ignored.
  The last 3 bits of a given IP address will be checked.

10. Refer to the exhibit. When creating an extended ACL to deny traffic from the 192.168.30.0 network destined for the Web server 209.165.201.30, where is the best location for applying the ACL?

  R3 Fa0/0 inbound

11. How do Cisco standard ACLs filter traffic?

  by source IP address

12. Which three items must be configured before a dynamic ACL can become active on a router? (Choose three.)

  extended ACL
  authentication
  Telnet connectivity

13. A network administrator needs to allow traffic through the firewall router for sessions that originate from within the company network, but the administrator must block traffic for sessions that originate outside the network of the company. What type of ACL is most appropriate?

  reflexive

14. Which statement about standard ACLs is true?

  They should be placed as close to the destination as possible.

15. Which benefit does an extended ACL offer over a standard ACL?

  In addition to the source address, an extended ACL can also filter on destination address, destination port, and source port.

16. The following commands were entered on a router:

Router(config)# access-list 2 deny 172.16.5.24
Router(config)# access-list 2 permit any

The ACL is correctly applied to an interface. What can be concluded about this set of commands?

  All nodes on the 172.16.0.0 network will be denied access to other networks.

17. Refer to the exhibit. The administrator wishes to block web traffic from 192.168.1.50 from reaching the default port of the web service on 192.168.3.30. To do this, the access control list name is applied inbound on the router R1 LAN interface. After testing the list, the administrator has noted that the web traffic remains successful. Why is web traffic reaching the destination?

  The range of source addresses specified in line 10 does not include host 192.168.1.50.

18. Which feature will require the use of a named ACL rather than a numbered ACL?

  the ability to edit the ACL and add additional statements in the middle of the list without removing and re-creating the list

19. By default, how is IP traffic filtered in a Cisco router?

  permitted in and out of all interfaces

20. Refer to the exhibit. The network administrator applied an ACL outbound on S0/0/0 on router R1. Immediately after the administrator did so, the users on network 172.22.30.0/24 started complaining that they have intermittent access to the resources available on the server on the 10.10.0.0/16 network. On the basis of the configuration that is provided, what is the possible reason for the problem?

  The ACL permits the IP packets for users on network 172.22.30.0/24 only during a specific time range.

21. Interface s0/0/0 already has an IP ACL applied inbound. What happens when the network administrator attempts to apply a second inbound IP ACL?

  The second ACL is applied to the interface, replacing the first.

22. A technician is creating an ACL and needs a way to indicate only the subnet 172.16.16.0/21. Which combination of network address and wildcard mask will accomplish the desired task?

  172.16.16.0 0.0.7.255

23. Refer to the exhibit. Which statement is true about ACL 110 if ACL 110 is applied in the inbound direction on S0/0/0 of R1?

  It will permit any TCP traffic that originated from network 172.22.10.0/24 to return inbound on the S0/0/0 interface.

24. Refer to the exhibit. ACL 120 is configured inbound on the serial0/0/0 interface on router R1, but the hosts on network 172.11.10.0/24 are able to telnet to network 10.10.0.0/16. On the basis of the provided configuration, what should be done to remedy the problem?
  Apply the ACL outbound on the serial0/0/0 interface on router R1.

25. Which two statements are true regarding named ACLs? (Choose two.)

  Names can be used to help identify the function of the ACL.
  Certain complex ACLs, such as reflexive ACLs, must be defined with named ACLs.

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1. What is the best defense for protecting a network from phishing exploits?

  Schedule training for all users.

2. What are three characteristics of a good security policy? (Choose three.)

  It defines acceptable and unacceptable use of network resources.
  It communicates consensus and defines roles.
  It defines how to handle security incidents.

3. The Cisco IOS image naming convention allows identification of different versions and capabilities of the IOS. What information can be gained from the filename c2600-d-mz.121-4? (Choose two.)

  The software is version 12.1, 4th revision.
  The IOS is for the Cisco 2600 series hardware platform.

4. Refer to the exhibit. What is accomplished when both commands are configured on the router?

  The commands disable the services such as echo, discard, and chargen on the router to prevent security vulnerabilities.

5. Which two conditions should the network administrator verify before attempting to upgrade a Cisco IOS image using a TFTP server? (Choose two.)

  Verify connectivity between the router and TFTP server using the ping command.
  Verify that there is enough flash memory for the new Cisco IOS image using the show flash command.

6. Which two statements regarding preventing network attacks are true? (Choose two.)

  Physical security threat mitigation consists of controlling access to device console ports, labeling critical cable runs, installing UPS systems, and providing climate control.
  Changing default usernames and passwords and disabling or uninstalling unnecessary services are aspects of device hardening.

7. An IT director has begun a campaign to remind users to avoid opening e-mail messages from suspicious sources. Which type of attack is the IT director trying to protect users from?

  virus

8. Users are unable to access a company server. The system logs show that the server is operating slowly because it is receiving a high level of fake requests for service. Which type of attack is occurring?

  DoS

9. Refer to the exhibit. What is the purpose of the "ip ospf message-digest-key 1 md5 cisco" statement in the configuration?
  to specify a key that is used to authenticate routing updates

10. Which two statements define the security risk when DNS services are enabled on the network? (Choose two.)

  The basic DNS protocol does not provide authentication or integrity assurance.
  The router configuration does not provide an option to set up main and backup DNS servers.

11. Which two statements are true about network attacks? (Choose two.)

  A brute-force attack searches to try every possible password from a combination of characters.
  Devices in the DMZ should not be fully trusted by internal devices, and communication between the DMZ and internal devices should be authenticated to prevent attacks such as port redirection.
12. Refer to the exhibit. A network administrator is trying to configure a router to use SDM, but it is not functioning correctly. What could be the problem?

  The privilege level of the user is not configured correctly.

13. Refer to the exhibit. The network administrator is trying to back up the Cisco IOS router software and receives the output shown. What are two possible reasons for this output? (Choose two.)

  The router cannot connect to the TFTP server.
  The TFTP server software has not been started.

14 
Which two statements are true regarding network security? (Choose two.)

  Both experienced hackers who are capable of writing their own exploit code and inexperienced individuals who download exploits from the Internet pose a serious threat to network security.
  Protecting network devices from physical damage caused by water or electricity is a necessary part of the security policy.

15. The password recovery process begins in which operating mode and using what type of connection? (Choose two.)

  ROM monitor
  Direct connection through the console port

16. Which two objectives must a security policy accomplish? (Choose two.)

  Document the resources to be protected
  Identify the security objectives of the organization

17. Which statement is true about Cisco Security Device Manager (SDM)?

  SDM can be run from router memory or from a PC.

18. Which step is required to recover a lost enable password for a router?

  Set the configuration register to bypass the startup configuration.

19. Refer to the exhibit. Security Device Manager (SDM) is installed on router R1. What is the result of opening a web browser on PC1 and entering the URL https://192.168.10.1?

  The SDM page of R1 appears with a dialog box that requests a username and password.

20. Intrusion detection occurs at which stage of the Security Wheel?

  Monitoring

21. Refer to the exhibit. Security Device Manager (SDM) has been used to configure a required level of security on the router. What would be accomplished when the SDM applies the next step on the security problems that are identified on the router?

  SDM will reconfigure the services that are marked in the exhibit as “fix it” to apply the suggested security changes.

22 
What are two benefits of using Cisco AutoSecure? (Choose two.)

  It gives the administrator detailed control over which services are enabled or disabled.
  It allows the administrator to configure security policies without having to understand all of the Cisco IOS software features.

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1. Refer to the exhibit. An administrator documented the output of a CAM table from an Ethernet switch as shown. What action will the switch take when it receives the frame shown at the bottom of the exhibit?

discard the frame
forward the frame out port 2
forward the frame out port 3
forward the frame out all ports
***forward the frame out all ports except port 3
add station 00-00-3D-1F-11-05 to port 2 in the forwarding table

2.Refer to the exhibit. What does the term DYNAMIC indicate in the output that is shown?

This entry can only be removed from the MAC address table by a network administrator.
When forwarding a frame to the device with address 0060.5c5b.cd23,the switch does not have to perform a lookup to determine
Only the device with MAC address 0060.5c5b.cd23 will be allowed to connect to port Fa0/18
***The switch learned this MAC address from the source address in a frame received on Fa0/18

3. A new switch is to be added to an existing network in a remote office. The network administrator does not want the technicians in the
remote office to be able to add new VLANs to the switch,but the switch should receive VLAN updates from the VTP domain. Which two steps must be performed to configure VTP on the new switch to meet these conditions?(Choose two.)

Configure an IP address on the new switch
***Configure the existing VTP domain on the new switch
Configure all ports of both switches to access mode
***Configure the new switch as a VTP client
Enable VTP pruning

4.  Refer to the exhibit. What is true of the configuration of switch S1?

A Cisco proprietary protocol is in use for ports Fa0/1 and Fa0/3
Switch ports Fa0/1 and Fa0/3 have been configured with the switchport mode access command
Untagged frames received on ports Fa0/1 and Fa0/3 will be placed on VLAN 1
***Switch ports Fa0/1 and Fa0/3 are configured to carry data from multiple VLANs

5.  Refer to the exhibit. On which of the devices in this network should routing between VLAns take place?

the core layer devices
the access layer devices
the distribution layer devices
***the core and distribution layer devices

6.  Refer to the exhibit. A network administrator enters the displayed commands to configure VLAN 30. What is the result of running
    these commands?

VLAN 30 will be added to S1,S2,and S3,but not to S4
VLAN 30 will be pruned from the VLAN database of S3
***VLAN 30 will be added to the VLAN database of S3 but will not be propagated to S4,S2 or S1
VLAN 30 will not be added to the VLAN database of S3 and an error message will be displayed

7. After listening for the presence of a signal on the network media, host A and C transmit data at the same time. In what two ways do
   the hosts respond to this situation?(Choose two)
***The hosts transmit a jam signal to ensure that all hosts on the network are aware that a collision has occured
Because they are operating in full-duplex mode, the hosts resume listening for traffic in preparation for sending future messages
Because the hub will temporarily block traffic from one of the hosts, that host will be allowed to transmit once the wire is clear
Hosts A and C are assigned shorter backoff values to provide them priority to access the media for retransmission
***After the backoff eriod of a host, the host checks to  determine if the line is idle before retransmitting

8. Refer to the exhibit.Router RA receives a packet with a source address of 192.168.1.65 and destination address of 192.168.1.161.
   What will the router do with this packet?

***The router will drop the packet
The router will forward the packet out interface FastEthernet 0/1.1
The router will forward the packet out interface FastEthernet 0/1.2
The router will forward the packet out interface FastEthernet 0/1.3
The router will forward the packet out interface FastEthernet 0/1.2 and interface FastEthernet 0/1.3

9. Which statement regarding the service password-encryption command is true?

The service password-encryption command is entered at the privileged EXEC mode prompt
The service password-encryption command encrypts only passwords for the console and VTY ports
***The service password-encryption command encrypts all previously unencrypted passwords in the running configuration
To see the passwords encrypted by the service password-encryption command, enter the no service password-encryption command

10. Refer to the exhibit. Switches S2 and S3 are properly connected using an ethernet cable. A network administrator has configured both
    switches with VTP, but S3 is unable to propagate VLANs to S2. What could be the reason for this?

The VTP configuration revision is different on both switches
***The VTP domains are different on both switches
VTP pruning is disabled
VTP v2 is disabled

11. Refer to the exhibit.Both switches are configured with default bridge priority. Which port will act as STP root port if all links are
    operating at the same bandwidth?

Fa0/1 interface of S1
Fa0/2 interface of S1
Fa0/1 interface of S2
***Fa0/2 interface of S2

12. Refer to the exhibit. The switch VTY lines have been properly configured, but PC1 is unable to remotely manage the switch. How can
    this problem be resolved?

Configure the Fa0/1 interface of the switch in trunk mode
***Configure a default gateway on the switch
Configure the native VLAN on the switch
Configure the Fa0/1 interface of the switch to allow all VLANs

13. What provides an authentication mechanism for 802.11-based wireless networks?

DSSS
OFDM
***SSID
WPA

14.Refer to the exhibit. What three statements describe why Host1 and Host2 are unable to communicate?(Choose three)

***The switch ports are o different VLANs
The switch IP address is on the wrong subnet
***The hosts are configured on different logical networks
***A router is required to forward traffic between Host1 and Host2
The VLAN port assignments must be contiguous for each VLAN
The host default gateway addresses must be on the same logical network

15. Refer to the exhibit. A new host needs to be connected to VLAN3. Which IP address should be assigned to this new host?

192.168.1.22/28
192.168.1.31/28
192.168.1.32/28
***192.168.1.52/28
192.168.1.63/28

16. Refer to the exhibit. Hosts PC_A and PC_B send traffic simultaneously, and the frames from the transmitting station collide. What is
    the last device to receive the collision?

hub HB1
***switch SW1
router R1
switch SW2
router R2
switch SW4

17. Refer to the exhibit. The network administrator needs to remove the east-hosts VLAN and use the switch port from that VLAN in one of
    the existing VLANs. Which two sets of commands should be used when completely removing VLAN 2 from S1-Central ehile leaving
    the switch and all its interfaces operational?(Choose two)

S1-Central>enable
S1-Central#reload

S1-Central>enable
S1-Central#erase flash:

S1-Central>enable
S1-Central#delete flash:vlan.dat

***S1-Central>enable
 S1-Central#configure terminal
 S1-Central(config)#no vlan 2

***S1-Central>enable
 S1-Central#configure terminal
 S1-Central(config-if)#interface fastethernet 0/1
 S1-Central(config-if)#switchport access vlan 3

18. Refer to the exhibit. In what two ways will the router handle VLAN traffic that is received on the trunk?(Choose two)


Traffic to VLAN 1 received by the router interface Fa0/0 will be dropped by the router
***Because interface Fa0/0 requires an iP address, the router will not be able to route between the VLANs
***Packets that are received from network 192.168.20.0/24 will be handled by subinterface Fa0/0.20
The router will use subinterface MAC addersses to identify the VLAN traffic that is received on the physical interface
The router will continue to process traffic from the attached VLANs even if the physical interface goes down

19. Refer to the exhibit. Which two options correctly describe the router configuration that is shown?(Choose two)

Routing between the 192.168.1.0 and 192.168.3.0 networks will not succeed until a routing protocol is configured on the router
***VLANs have not been appropriately configured on the router subinterfaces
The configuration is appropriate for a router-on-a-stick network design
Trunking has been appropriately configured on the router subinterfaces
***An IP address should be applied to interface Fa0/1 for routing to occur

20. Refer to the exhibit. The devices in the network are operational and configured as indicated in the exhibit. However, hosts A and D
    cannot ping each other. What is the most likely cause of this problem?

The link between the switches is up but not trunked
***The Fa0/11 interface of Switch1 is not configured as a trunk
Hosts A and D are configured with IP addresses from different subnets
VLAN 20 and VLAN 30 are not allowed on the trunk between the switches

21. Refer to the exhibit. What three statements describe why Host1 and Host2 are unable to communicate?(Choose three)

***The switch ports are is on different VLANs
The switch IP address is on the wrong subnet
***The hosts are configured on different logical networks
A router is required to forward traffic between Host1 and Host2
The VLAN port assignments must be contiguous for each VLAN
***The host default gateway addresses must be on the same logical network

22. Which three statements are correct concerning the default configuration of a new switch?(Choose three)

***It is configured in VTP server mode
***STP is automatically enabled
The first VTY line is automatically configured to allow remote connections
VLAN1 is configured with a management IP address
***All switch ports are assigned to VLAN1
The enable password is configured as cisco

23. When configuring a router to act as an SSH server, what should be configured before issuing the crypto key generate rsa command?

the security domain name
the VTP domain name
***the IP domain name
the host name

24.Refer to the exhibit. Which two facts about STP can be determined from the displayed output?(Choose two)

***Switch S1 has the lowest configured STP priority in the network
Switch S1 is configured as the root bridge for VLAN1
***Fa0/21 is the root port of switch S1
Fa0/22 is the redundant link
Fa0/24 is considered the best path to the root bridge

25. Refer to the exhibit. VTP pruning is enabled in the VTP domain that is shown. How will switch ST-1 handle Layer 2 broadcast traffic
    originating from host A on switch ST-C?

It will be dropped
***It will be forwarded out port Fa0/5 only
It will be forwarded out ports Fa0/5 and Fa0/10
It will be forwarded out ports Fa0/5, Fa0/10, and Fa0/15

26. Refer to the exhibit. How will switch S2 manage traffic coming from host PC1?

S2 will drop the traffic, unless it is management traffic
S2 will tag the frame with VLAN ID 99 when it forwards it over the trunk link
***S2 will leave the traffic untagged when it forwards it over a trunk link
S2 will tag the traffic with the highest VLAN ID value when it forwards it over the trunk link

27. Which two statements are corect about wireless infrastructure components?(Choose two)

An AP converts the TCP/IP data packets from their 802.11 frame encapsulation format to the 802.3 Ethernet frame format on the
wired Ethernet network
***A wireless AP does not require any physical connection to allow wireless clients to access the Internet
An AP is a layer 2 device, similar to a switch, that provides dediated bandwidth to each connected wireless host
Collisions do not occur between wireless NICs and APs
***The wireless router performs the roles of AP and router

28. Refer to the exhibit. Switch SW-A is to be used as temporary replacement for another switch in the VTP Student domain. What two
    pieces of information are indicated from the exhibited output?(Choose two)

***The other switches in the domain can be running either VTP versin 1 or 2
There is a risk that the switch may cause incorrect VLAN information to be sent through the domain
VTP will block frame forwarding on at least one redundant trunk port that is configured on this switch
VLAN configuration changes made on this switch will be sent to other devices in the VTP domain
***This switch will update its VLAN configuration when VLAN changes are made on a VTP server in the same domain

29. Refer to the exhibit. The switches have been configured as shown. The hosts that are connected to switch 101-2FL are not able to
 communicate with the hosts in their corresponding VLANs that are connected to switch 101-3FL. What should be done to fix the problem?

***Configure port Fa0/2 on switch 101-3FL as a static trunk link
Introduce a Layer 3 device or a switch with Layer 3 capability into the topology
Utilize the switchport trunk allowed vlan all command on switch 101-3FL to permit the VLAN traffic
Apply IP addresses that are in the same subnet to the interfaces that are used to connect switches 101-2FL and 101-3FL

30. What are three benefits of employing a hierarchical network design?(choose three)

***Hierarchically designed networks can more easily be expanded to suit future needs
***Hierarchical design models enhance existing bandwidth through the use of link aggregation
***The hierarchical model allows for specialized functionality at each layer, simplifying device management
Use of a hierarchical design allows replacement of redundant devices with high-capacity network equipment
A hierarchical design uses firewalls instead of complicated port-based and distribution layer security policies
The hierarchical model allows the use of high-performance switches at all design layers, thus allowing for fully-meshed topology

31. Refer to the exhibit. The network administrator configures both switches as displayed. Howerer, host C is unable to ping host D and
    host E is unable to ping host F. What ation should the administrator take to enable this communication?

Include a router in the topology
Associate hosts A and B with VLAN 10 instead of VLAN 1
Remote the native VLAN from the trunk
***Configure one trunk port in the dynamic desirable mode
Add the switchport nonegotiate command to the configuration of S2

32. Refer to the exhibit. A network administrator has segmented the network into two VLAns. The connected hosts can only access
 resources in their own VLAN. What th most scalable and cost effective solution to allow inter-VLAN communication in this network?

Replace S1 with a router that has one FastEthernet interface for each PC
Add a second switch and divide the PCs so that each VLAN is connected to is own switch
***Configure a router with two subinterfaces on one of its FastEthernet ports and connect it to S1 using a trunk link
Connect a router to a port on S1 and assign the IP address of VLAN1 to the connecting router interface

33. Refer to the exhibit. How is port Gi1/1 on SwT-A functioning in the spanning-tree topology?

***It is sending and receiving data frames
It is receiving BPDUs, but not sending data frames
It is participating in the election process by forwarding the BPDUs it receives
It is receiving BPDUs and populating the MAC address table, but not sending data

34. What are two requirements for configuring inter-VLAN routing using the router-on-a-stick model?(Choose two)

***Each subinterface should be configured with its own Ip address, subnet mask, and unique VLAN assignment
***The physical interface of the router must be connected to a trunk link on the adjacent switch
The number of physical interfaces on the router should match the number of VLANs
Different static VLANs should be assigned to different interfaces of the router
The router should be configured as the VTP server

35. Refer to the exhibit. Sw-T has been configured with a single trunking interface. Which VLANs will be allowed across the trunk?

Only VLAN 1 will be allowed across the trunk
***All configured VLANs will be allowed across the trunk
Only the native VLAN wil be allowed across the trunk
Only the the management and native VLANs will be allowed across the trunk
Only VLANs that are configured on the VTP server in the domain will be allowed across the trunk

36. Refer to the exhibit. Switch SW2 has been newly urchased and added to the network. What configuration should be applied to SW2
 so that it participates in the same VTP domain as switch SW1, receives VLAN information from SW1, and synchronizes VLAN information?

Disable VTP pruning on SW2
Configure SW2 in VTP transparent mode
***Configure SW2 with the VTP domain password
Configure SW2 as a VTP server with a higher revision number

37. Refer to the exhibit. Router R1 is properly configured for router on a stick inter-VLAN routing, but PC1 is unable to ping PC2. What
    needs to be one to resolve the problem?

Rename VLAN1
Connect one more port of S1 to R1
***Configure the Fa0/1 port of S1 as trunk port
Move the Fa0/0 interface of R1 to another VLAN

38. Refer to the exhibit. All trunk links are operational and all VLANs are allowed on all trunk links. An ARP request it sent by computer 5.
    Which device or devices will receive this message?

only computer 4
***computer 3 and RTR-A
computer 4 and RTR-A
computer 1, computer 2, computer 4, and RTR-A
computer 1, computer 2, computer 3, computer 4, and RTR-A
all of the computers and the router

39. Refer to the exhibit. Hosts A and B attempt to transmit a frame at the same time and a collision occurs. When will host D be able to transmit?

***immediately
after sending its jam signal
after host A and host B have comleted transmission
after the jam signal clears and its backoff delay expires

40. Refer to the exhibit. The network administrator wants to configure Switch1 to allow SSH connections and prohibit Telnet connections.
    How should the network administrator change the displayed confoguration to satisfy the requirement?

Use SSH version 1
Reconfigure the RSA key
Configure SSH on a different line
***Modify the transport input command

41. Refer to the exhibit. What is the effect of setting the security mode to WEP on the Linksys integrated router?

WEP identifies the wireless LAN
WEP allows the access point to inform clients to its presence
WEP translates IP addresses into easy-to-remember domain names
***WEP encrypt data between the wireless client and the access point
WEP ensures that only authenticated users are allowed acces to the WLAN
WEP translates an internal address or group of addresses into an outside, public address

42. Refer to the exhibit. The switches are configured for VTP as shown. Which two statements correctly describe the operation of these switches?(Choose two)

A new VLAN can be added to Switch1 and that information will be added only to Switch2
***A new VLAN can be added to Switch1 and that information will be added to Switch2 and Switch4
 ***An existing VLAN can be deleted from Switch4 and that VLAN will be deleted from Switch1 and Switch2
An existing VLAN can be deleted from Switch2 and that VLAN will be deleted from Switch1 and Switch4
A new VLAN can be added to Switch4 and that information will be added to Switch1, Switch2, Switch3
A new VLAN can be added to Switch3 and that information will be added to Switch1, Switch2, Switch4

43. After unpacking a new Linksys WRT300N wireless multifunction device, a user needs to change the default administrator password
    and make other configuration changes. What must the user doto access the device in order to make these changes?

Use a wireless client to associate with the WRT300N and then open a HyperTerminal sssion with the device
Establish a wired connection with the device and then reboot the attached computer to launch the configuration software
***Establish a wired connection from a computer in the same IP subnet as the WRT300N and enter the default IP address of the device into a web browser on the computer
Modify the TCP/IP properties of the computer that is connected to the WRT300N so that the computer and the WRT300N exist on the same network. Then reboot computer to establish a connection

44. Refer to the exhibit. Which switch will be elected as the root bridge of the spanning tree topology?

Cat-A
Cat-B
Cat-C
***Cat-D

45. Which statements correctly describes the function of a Layer 2 switch?

***It performs switching and filtering based on the destination network layer address
    It automatically uses STP to prevent switching loops in redundant topologies
    It uses VTP to allow data from multiple VLANs to travel across a single link
    It routes packets between different LAN segments



46. Which two statements describe Spanning Tree Protocol?(Choose two)

***It only used at Layer 2
It is configured on routers
***It eliminates Layer 2 loops in network topologies
It limits the number of valid MAC addresses allowed on a port
It allows VLAN information to propagate to other switches in the network

47. Which statement correctly describes the spanning-tree path cost?

It is calculated based on the total number of switches connected in a loop
It is calculated based on the utilization of all the switches along a given path
***It is calculated based on the bridge priority of the switches along a given path
It is calculated based on the sum of the port cost value, determited by link speed, for each switch port along a given path

48. What is the purpose of VLAN trunking?

It improves network performance by reducing broadcast traffic
It select the best path to transmit data in a switched network
***It carries the traffic of multiple VLANs through a single link
It avoids spanning tree loops in a switched network

49. Refer to the exhibit. What is the purpose of the configuration commands that are shown?

to activate port Fa0/10
***to make the port a member of VLAN 30
to activate port security on port Fa0/10
to add VLAN 30 to the trunk that is connected to port Fa0/10

50. Refer to the exhibit. Router R-West and switch S-West1 are connected via a single ethernet cable between the router interface fa0/0 and the switch interface fa0/1. The router and switch have been configured with the commands that are displayed in the exhibit. The network administrator enters the show interfaces trunk command and receives the output as shown. What is the cause of the "not-trunking" status for switch port Fa0/1?

The trunk is established, but no VLANs have been configured to
use it
The router is missing the dynamic trunking protocol statements
necessary to form a trunk
***Because the router does not support Dynamic Trunking Protocol,
the trunk has not been established
The router, the switch, or both must be configured with the
 dynamic desirable option for Dynamic Trunking Protocol to
 establish a trunk

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1. Which statement about WAN protocols is correct?

  Most WAN protocols use HDLC or a variant of HDLC as a framing mechanism.

2. Which statement is true of the functionality of the layers in the hierarchical network model?

  The distribution layer aggregates WAN connections at the edge of the campus.

3. Which WAN technology uses a fixed payload of 48 bytes and is transported across both switched and permanent virtual circuits?

  ATM

4. A U.S. company requires a WAN connection used only to transfer sales data from individual stores to the home office. All transfers will occur after business hours. The required bandwidth for this connection is estimated to be less than 38 kbps. Which type of connection requires the least investment for this company?

  analog dialup

5. What is an advantage of packet-switched technology over circuit-switched technology?

  Packet-switched networks can efficiently use multiple routes inside a service provider network.

6. Which statement is true about data connectivity between a customer and a service provider?

  The segment between the demarcation point and the central office is known as the "last mile."

7. What are two advantages of an analog PSTN WAN connection? (Choose two.)

  low cost
  availability

8. What can cause a reduction in available bandwidth on a cable broadband connection?

  number of subscribers

9. For digital lines, which device is used to establish the communications link between the customer equipment and the local loop?

  CSU/DSU

10. At which two layers of the OSI model does a WAN operate? (Choose two.)

  Physical Layer
  Data Link Layer

11. A company needs a WAN connection that is capable of transferring voice, video, and data at a minimum data rate of 155 Mbps. Which WAN connection is the best choice?

  ATM

12. Which statement is true about the differences between a WAN and a LAN?

  A WAN often relies on the services of carriers, such as telephone or cable companies, but a LAN does not.

13. Which networking device is typically used to concentrate the dial-in and dial-out traffic of multiple users to and from a network?

  access server

14. Why is the call setup time of a circuit-switched WAN implementation considered a drawback?

  Data cannot be transferred until a circuit has been established.

15. What three terms are associated with ISDN PRI? (Choose three.)

  circuit switching
  data bearer channels
  time-division multiplexing

16. Which three features are identified with Frame Relay connections? (Choose three.)
  CIR
  DLCI
  PVC

17. Which two devices are commonly used as data communications equipment? (Choose two.)

  modem
  CSU/DSU

18. Which packet-switched WAN technology offers high-bandwidth connectivity capable of managing data, voice, and video all on the same infrastructure?

  metro Ethernet

19. Which three WAN devices can be found in the cloud? (Choose three.)

  ATM switches
  core routers
  Frame Relay switches

20. Which switching type will allow the communication devices in the provider network to be shared and only allocated to an individual subscriber during data transfer?

  dedicated switched lines

21. What type of connectivity is established when VPNs are used from the remote site to the private network?

  tunnels

22. Which term describes a device that will put data on the local loop?

  DCE

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