Final CNA 4

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1. What are two main components of data confidentiality? (Choose two.)

checksum

digital certificates

encapsulation

encryption

hashing

2. Which network component has the primary function of detecting and logging attacks made

against the network?

Cisco Security Agent

antivirus software scanner

intrusion detection system

intrusion prevention system

3.

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 network command is not configured.

The RIPng processes do not match between Router1 and Router2.

4. Which three guidelines would help contribute to creating a strong password policy? (Choose

three.)

Once a good password is created, do not change it.

Deliberately misspell words when creating passwords.

Create passwords that are at least 8 characters in length.

Use combinations of upper case, lower case, and special characters.

Write passwords in locations that can be easily retrieved to avoid being locked out.

Use long words found in the dictionary to make passwords that are easy to remember.

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5.

Refer to the exhibit. The link between the CTRL and BR_1 routers is configured as shown in the

exhibit. Why are the routers unable to establish a PPP session?

The clock rate must be 56000.

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 CTRL must connect to interface serial 0/0/1 on BR_1.

6.

Refer to the exhibit. Headquarters is connected through the Internet to branch office A and

branch office B. Which WAN technology would be best suited to provide secure connectivity

between headquarters and both branch offices?

ATM

VPN

ISDN

Frame Relay

broadband DSL

7. 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

8. 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?

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Company 2 downloads larger files than company 1 downloads.

Company 2 must share the connection to the DSLAM with more clients than company 1 shares.

Company 1 is closer to the service provider than is company 2.

Company 1 has a lower volume of POTS traffic than company 2 has.

9.

Refer to the exhibit. The network administrator creates a standard access control list to prohibit

traffic from the 192.168.1.0/24 network from reaching the Internet. The access list must still

permit the 192.168.1.0/24 network access to the 192.168.2.0 network. On which router interface

and in which direction should the access control list be applied?

interface Fa0/0, inbound

interface Fa0/0, outbound

interface S0/0/0, inbound

interface S0/0/0, outbound

10. 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.

11.

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.

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12.

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 .

13. What component of VPN technology combines message text with a key to make the message

unreadable by unauthorized receivers?

message hash

user password

RSA signature

encryption algorithm

14. 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

15.

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.

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16.

Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 and R3

have not received any RIP routing updates. What will fix the issue?

Enable RIP authentication on R2.

Issue the ip directed-broadcast command on R2.

Change the subnet masks to 10.11.12.0/8 and 172.16.40.0/16 on R2.

Enable CDP on R2 so that the other routers will receive routing updates.

17. What name is given to the location where a customer network interfaces with a network that

is owned by another organization?

CPE

DCE

local loop

demarcation point

18.

Refer to the exhibit. What is placed in the address field in the header of a frame that will travel

from the Orlando router to the DC router?

DLCI 123

DLCI 321

10.10.10.25

10.10.10.26

MAC address of the DC router

19.

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

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20. What will be the result of adding the command ip dhcp excluded-address 10.10.4.1 10.10.4.5

to the configuration of a local router that has been configured as a DHCP server?

Traffic that is destined for 10.10.4.1 and 10.10.4.5 will be dropped by the router.

Traffic will not be routed from clients with addresses between 10.10.4.1 and 10.10.4.5.

The DHCP server will not issue the addresses ranging from 10.10.4.1 to 10.10.4.5.

The router will ignore all traffic that comes from the DHCP servers with addresses 10.10.4.1 and

10.10.4.5.

21. What functionality do access control lists provide when implementing dynamic NAT on a

Cisco router?

which addresses are allowed to be accessed from the inside network

which addresses are allowed out of the router

which addresses are assigned to a NAT pool

which addresses are to be translated

22. Which statement about a VPN is true?

VPN link establishment and maintenance is provided by LCP.

DLCI addresses are used to identify each end of the VPN tunnel.

VPNs use virtual Layer 3 connections that are routed through the Internet.

Only IP packets can be encapsulated by a VPN for tunneling through the Internet.

23.

Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and

S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?

There is a Layer 2 loop.

The VTP domain names do not match.

Only one switch can be in server mode.

S2 has a higher spanning-tree priority for VLAN 11 than S1 does.

24. An administrator is unable to receive e-mail. While troubleshooting the problem, the

administrator is able to ping the local mail server IP address successfully from a remote network

and can also successfully ping using the mail server name. At which layer of the OSI model is the

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problem most likely to be found?

physical layer

network layer

data link layer

application layer

25. Which data link layer encapsulation protocol is used by default for serial connections between

two Cisco routers?

ATM

Frame Relay

HDLC

PPP

SDLC

26. 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.

27. Which statement accurately describes a role that is played in establishing a WAN connection?

ISDN and ATM are circuit-switched technologies that are used to establish on demand a path through

the service provider network.

Data link layer protocols like PPP and HDLC define how data is encapsulated for transmission across a

WAN link.

A packet-switching network establishes a dedicated circuit between nodes for the duration of the

communication session.

Frame Relay switches are normally considered to be customer premises equipment (CPE) and are

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maintained by local administrators.

28.

Refer to the exhibit. What is the meaning of the term dynamic in the output of the command?

The bandwidth capability of the interface increases and decreases automatically based on BECNs.The Serial0/0/1 interface acquired 172.16.3.1 from a DHCP server.

The mapping between DLCI 100 and 172.16.3.1 was learned through Inverse ARP.

DLCI 100 will automatically adapt to changes in the Frame Relay cloud.

29. What is an accurate description of CHAP when used with PPP on a serial connection between

two routers?

A username and password are sent to the peer router, which replies with an accept or reject message.

A username and password are sent to the peer router. If these match the configuration in the peer, the

peer in turn provides a username and password to the initiating router.

A challenge message is sent to the peer router, which responds with its username and a calculated value

based on a shared secret. This value is then compared by the challenger to its own calculations.

An encrypted password is sent to the peer router, which decrypts it and compares it to a shared secret.

If the decrypted passwords match, the peer sends the encrypted password back to the initiating router.

30. Which technology is used to dynamically map next hop, network layer addresses to virtual

circuits in a Frame Relay network?

Inverse ARP

LMI

DLCI

31.

Refer to the exhibit. A network administrator is trying to connect R1 remotely to make

configuration changes. Based on the exhibited command output, what will be the result when

attempting to connect to R1?

failure to connect due to Telnet not being enabled

failure to connect due to incomplete configuration for Telnet

a successful connection and ability to make configuration changes

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a successful connection but inability to make configuration changes because of the absence of an

enable secret password

32. A DHCP server is configured with a block of excluded addresses. What two devices would be

assigned static addresses from the excluded address range? (Choose two.)a protocol analyzer

DNS server for the network

network printer that is used by many different users

a laptop that will get a different address each time it boots up

33.

Refer to the exhibit. The corporate network that is shown has been assigned network

172.16.128.0/19 for use at branch office LANs. If VLSM is used, what mask should be used for

addressing hosts at Branch4 with minimal waste from unused addresses?

/19

/20

/21

/22

/23

/24

34. Compared with IDS systems, what can IPS systems do to provide further protection of

computer systems?

detect potential attacks

stop the detected attack from executing

update OS patches for computer systems

scan computer systems for viruses and spyware

35. A company has its headquarters office in Dallas and five branch offices located in New York,

Chicago, Los Angeles, Seattle, and Atlanta. WAN links are used for communications among

offices in six sites. In planning the WAN links, the network designer is given two requirements:

(1) minimize cost and (2) provide a certain level of WAN link reliability with redundant links.

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Which topology should the network designer recommend?

star

full mesh

hierarchical

partial mesh

36.

Refer to the exhibit. Every time the administrator reboots this router, the boot process ends in

setup mode. What is a possible problem?

There is insufficient RAM for the IOS to load on this router.

A password recovery process should be done on this router.

The bootstrap version and the version of the IOS are different.

The IOS image is damaged and must be reloaded using tftpdnld.

The configuration register is set to ignore the startup configuration.

37. An administrator issues the command show interfaces s0/1/0 on a router that is configured for

Frame Relay. Which console output may indicate an LMI mismatch?

Serial0/1/0 is administratively down

Serial0/1/0 is up, line protocol is up

Serial0/1/0 is up, line protocol is down

Serial0/1/0 is down, line protocol is down

38.

Refer to the exhibit. Users who are connected to R1 report that they are unable to establish

connectivity to the users who are connected to router R2. A network administrator tests the link

with the debug ppp authentication command. Based on the output shown, which statement

correctly defines the problem on the link?

R1 uses PAP as a method of authentication, and R2 uses CHAP.

R1 uses CHAP as a method of authentication, and R2 uses PAP.

R1 uses an incorrect user name or password for CHAP authentication.

R2 uses an incorrect user name or password for PAP authentication.

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39. Which IP address and wildcard mask combination can be used in an ACL statement to match

the 172.16.0.0/30 network?

172.16.0.0 0.0.0.1

172.16.0.0 0.0.0.3

172.16.0.0 0.0.0.7

172.16.0.0 255.255.255.252

40. A company is looking for a WAN solution to connect its headquarters site to four remote sites.

What are two advantages that dedicated leased lines provide compared to a shared Frame Relay

solution? (Choose two.)

reduced jitter

reduced costs

reduced latency

the ability to burst above guaranteed bandwidth

the ability to borrow unused bandwidth from the leased lines of other customers

41.

Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host A

has sent a packet to the web server. What is the destination IP address of the return packet from

the web server?

10.1.1.2:1234

172.30.20.1:1234

172.30.20.1:3333

192.168.1.2:80

42. What function does LCP perform in the establishment of a PPP session?

LCP brings the network layer protocols up and down.

It carries packets from several network layer protocols.

It encapsulates and negotiates options for IP and IPX.

It negotiates and sets up control options on the WAN data link.

43. An employee of XYZ corporation will begin working from home. The employee has a choice

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standard

dynamic

reflexive

time-based

48. What is the result when the command security passwords min-length 8 is entered into a

router?

All new passwords are required to be a minimum of 8 characters in length.

All current passwords are now required to be a minimum of 8 characters in length.

Enable passwords must be at least 8 characters but line passwords are unaffected.

Nothing will happen until the command service password-encryption is entered. Then all future

passwords must have a minimum of 8 characters.

49. 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

50. What is the result when the command permit tcp 10.25.132.0 0.0.0.255 any eq smtp is added

to a named access control list and applied on the inbound interface of a router?

TCP traffic with a destination to the 10.25.132.0/24 is permitted.

Only Telnet traffic is permitted to the 10.24.132.0/24 network

Ttraffic from 10.25.132.0/24 is permitted to anywhere on using any port.

Traffic using port 25 from the 10.25.132.0/24 is permitted to all destinations.

1.

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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

2.

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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 map ip 192.168.1.1 103 broadcast on Serial 0/0/0.1




3. Which data link layer encapsulation protocol is used by default for serial connections between

two Cisco routers?

ATM

Frame Relay

HDLC

PPP

SDLC

4.

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?

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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 ddress and dynamic NAT for

the rest of the inside IPv6 addresses

5. 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

6.

Refer to the exhibit. The link between the CTRL and BR_1 routers is configured as shown in the

exhibit. Why are the routers unable to establish a PPP session?

The clock rate must be 56000.

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 CTRL must connect to interface serial 0/0/1 on BR_1.

7. Which three statements accurately describe a security policy? (Choose three.)

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It creates a basis for legal action if necessary.

It defines a process for managing security violations.

It defines acceptable and unacceptable use of network resources.

The remote access policy is a component of the security policy that governs acceptable use of e-mail

systems.

It is kept private from users to prevent the possibility of circumventing security measures.

It provides step-by-step procedures to harden routers and other network devices.

8. 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.

9.

Refer to the exhibit. Headquarters is connected through the Internet to branch office A and

branch office B. Which WAN technology would be best suited to provide secure connectivity

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between headquarters and both branch offices?

ATM

VPN

ISDN

Frame Relay

broadband DSL

10. Which statement about a VPN is true?

VPN link establishment and maintenance is provided by LCP.

DLCI addresses are used to identify each end of the VPN tunnel.

VPNs use virtual Layer 3 connections that are routed through the Internet.

Only IP packets can be encapsulated by a VPN for tunneling through the Internet.

11. A company is deciding which WAN connection type it should implement between its main

office and branch offices. The company wants to use a cost-effective service that provides virtual

circuits between each office. The company also wants to be able to transmit variable-length

packets on these circuits. Which solution best meets these requirements?

ATM

HDLC

ISDN

Frame Relay

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.

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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

14.

Refer to the exhibit. This router is being configured to use SDM, but the SDM interface of the

router cannot be accessed. What is the cause of the problem?

The VTY lines are not configured correctly.

The HTTP timeout policy is not configured correctly.

The authentication method is not configured correctly.

The username and password are not configured correctly.

15. Which two devices can be used by teleworkers who need to connect to the company network

across the PSTN for a few hours a day? (Choose two.)

router

CSU/DSU

DSL modem

cable modem

access server

dialup modem

16. 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?

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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.

17. What is the function of an intrusion detection system on a network?

to restrict access to only authorized users

to detect attacks against a network and send logs to a management console

to prevents attack against the network and provide active defense mechanisms

to detect and prevent most viruses and many Trojan horse applications from spreading in the network

18.

Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the

default gateway. What is the cause of the problem?

The default gateway is in the wrong subnet.

STP has blocked the port that PC1 is connected to.

Port Fa0/2 on S2 is assigned to the wrong VLAN.

S2 has the wrong IP address assigned to the VLAN30 interface.

19. When Frame Relay encapsulation is used, what feature provides flow control and exchanges

information about the status of virtual circuits?

LCP

LMI

DLCI

Inverse ARP

20. 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?

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Configure DHCP and static NAT.

Configure dynamic NAT for ten users.

Configure static NAT for all ten users.

Configure dynamic NAT with overload.

21. A company is looking for a WAN solution to connect its headquarters site to four remote sites.

What are two advantages that dedicated leased lines provide compared to a shared Frame Relay

solution? (Choose two.)

reduced jitter

reduced costs

reduced latency

the ability to burst above guaranteed bandwidth

the ability to borrow unused bandwidth from the leased lines of other customers

22. 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.

23. Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from the

DHCP server. The output of the debug ip dhcp server command shows DHCPD: there is no

address pool for 192.168.3.17. What is the problem?

The address 192.168.3.17 address is already in use by Fa0/0.

The pool of addresses for the 192Network pool is configured incorrectly.

The ip helper-address command should be used on the Fa0/0 interface.

The 192.168.3.17 address has not been excluded from the 192Network pool.

24.

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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

25. What three questions can be answered using data gathered from a baseline on a new

network? (Choose three.)

Are areas of the network experiencing high error rates?

Will the disaster recovery procedures work correctly?

What parts of the network have the highest volume?

Does the organization require more network technicians?

How does the network perform during peak periods?

Are there any devices working at top capacity?

What networks are the most susceptible to security attacks?

26. Which type of ACL will permit traffic inbound into a private network only if an outbound

session has already been established between the source and destination?

extended

reflexive

standard

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time-based

27.

Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host A

has sent a packet to Web Server. What is the destination IP address of the return packet from

Web Server when received at R1?

10.1.1.2:80

10.1.1.2:1234

172.30.20.1:1234

172.30.20.1:3333

28. An administrator issues the command show interfaces s0/1/0 on a router that is configured for

Frame Relay. Which console output may indicate an LMI mismatch?

Serial0/1/0 is administratively down

Serial0/1/0 is up, line protocol is up

Serial0/1/0 is up, line protocol is down

Serial0/1/0 is down, line protocol is down

29. A recently patched application server is experiencing response time problems. The network on

which the application server is located has been experiencing occasional outages that the network

team believes may be related to recent routing changes. Network and application teams have

been notified to work on their respective issues. Which statement applies to this situation?

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Only results from the software package should be tested as the network is designed to accommodate the

proposed software platform.

Scheduling will be easy if the network and software teams work independently.

It will be difficult to isolate the problem if two teams are implementing changes independently.

Results from changes will be easier to reconcile and document if each team works in isolation.

30.

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.

31.

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Refer to the exhibit. Which VLAN will carry untagged traffic on FastEthernet 0/1?

VLAN 1

VLAN 2

VLAN 11

VLAN 12

VLAN 30

VLAN 999

32. What is an accurate description of CHAP when used with PPP on a serial connection betweentwo routers?

A username and password are sent to the peer router, which replies with an accept or reject message.

A username and password are sent to the peer router. If these match the configuration in the peer, the

peer in turn provides a username and password to the initiating router.

A challenge message is sent to the peer router, which responds with its username and a calculated value

based on a shared secret. This value is then compared by the challenger to its own calculations.

An encrypted password is sent to the peer router, which decrypts it and compares it to a shared secret.

If the decrypted passwords match, the peer sends the encrypted password back to the initiating router.

33. Where does a service provider assume responsibility from a customer for a WAN connection?

local loop

DTE cable on router

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demarcation point

demilitarized zone

34.

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 commands are added to the end of the existing ACL.

The existing Managers ACL will be overwritten by the new ACL.

The router will output an error message and no changes will be made.

A duplicate Managers ACL will be created that will contain only the new commands.

35. Which statement is true about PAP in the authentication of a PPP session?

PAP uses a two-way handshake.

The password is unique and random.

PAP conducts periodic password challenges.

PAP uses MD5 hashing to keep the password secure.

36. Which combination of Layer 2 protocol and authentication should be used to establish a link

without sending authentication information in plain text between a Cisco and a non-Cisco

router?

PPP with PAP

PPP with CHAP

HDLC with PAP

HDLC with CHAP

37. Which option correctly defines the capacity through the local loop guaranteed to a customer

by the service provider?

BE

DE

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CIR

CBIR

38. Which wireless solution can provide mobile users with non line-of-sight broadband Internet

access at speeds comparable to DSL or cable?Wi-Fi

WiMAX

satellite

Metro Ethernet

39.

Refer to the exhibit. EIGRP has been configured as a routing protocol on the network. Users on

the 192.168.1.0/24 network should have full access to the web server that is connected to

192.168.3.0/24 but should not be allowed to telnet to router R3. Verifying the configuration, the

network administrator realizes that users on network 192.168.1.0/24 can successfully telnet to the

router. What should be done to remedy the problem?

The ACL 101 statements 10 and 20 should be reversed.

The ACL 101 should be applied on R3 VTY lines 0 4 in the inbound direction.

The ACL 101 should be applied on R3 VTY lines 0 4 in the outbound direction.

The ACL 101 should be applied on R3 Serial0/0/1 interface in the outbound direction.

The ACL 101 statement 10 should be changed to: permit ip 192.168.1.0 0.0.0.255 any

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40. What does an access control list determine when used with NAT on a Cisco router?

addresses that are to be translated

addresses that are assigned to a NAT pool

addresses that are allowed out of the router

addresses that are accessible from the inside network

41. Which IP address and wildcard mask combination can be used in an ACL statement to match

the 172.16.0.0/30 network?

172.16.0.0 0.0.0.1

172.16.0.0 0.0.0.3

172.16.0.0 0.0.0.7

172.16.0.0 255.255.255.252

42. Which security solution has the responsibility of monitoring suspicious processes that are

running on a host and that might indicate infection of Trojan horse applications?

antivirus application

operating system patches

intrusion prevention system

Cisco Adaptive Security Appliance

43.

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Refer to the exhibit. A network administrator is trying to connect R1 remotely to make

configuration changes. Based on the exhibited command output, what will be the result when

attempting to connect to R1?

failure to connect due to Telnet not being enabled

failure to connect due to incomplete configuration for Telnet

a successful connection and ability to make configuration changes

a successful connection but inability to make configuration changes because of the absence of an

enable secret password

44.

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Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and

S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?

There is a Layer 2 loop.

The VTP domain names do not match.

Only one switch can be in server mode.

S2 has a higher spanning-tree priority for VLAN 11 than S1 does.

45. A technician has been asked to run the Cisco SDM one-step lockdown on a customer router.

What will be the result of this process?

Traffic is only accepted from and forwarded to SDM-trusted Cisco routers.

Security testing is performed and the results are saved as a text file stored in NVRAM.

All traffic that enters the router is quarantined and checked for viruses before being forwarded.

The router is tested for any potential security problems and all recommended security-related

configuration changes will be automatically applied.

46.

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Refer to the exhibit. Which data transmission technology is being represented?

TDM

PPPHDLC

SLIP

47. A network administrator is instructing a technician on best practices for applying ACLs.

Which two suggestions should the administrator provide? (Choose two.)

Named ACLs are less efficient than numbered ACLs.

Standard ACLs should be applied inside the core layer.

Place standard ACLs as close to the destination as possible.

ACLs applied to outbound interfaces require fewer router resources.

Extended ACLs should be applied closest to the source that is specified by the ACL.

48

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Refer to the exhibit. Which configuration command would result in the output in the exhibit?

ip nat inside source static 10.1.200.254 172.16.76.3






49. What are three important reasons to establish a network baseline? (Choose three.)to determine the time it takes for the network to self recover from a failure

to determine which areas in the network are underutilized or overutilized

to determine the performance of the network during the normal hours of operation

to determine what thresholds should be set for the devices that need to be monitored

to determine the areas in the network which should not be included in the monitoring process

to determine the number of users whose access to network resources should be restricted

50. 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

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applied.

Standard ACLs should be applied closest to the source while extended ACLs should be applied closest

to the destination.

51. While troubleshooting a problem with an e-mail server, an administrator observes that theswitch 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

52.

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Refer to the exhibit. Router RT is not receiving routing updates from router RTA. What is

causing the problem?

The ip rip authentication key-chain command specifies exam rather than test.

The name of the keystring is not the name of the neighboring router.

The key chains are given the same name on both routers.

The passive-interface command was issued for RTA.

Documents

Final CNA 4