ccna 4 final exam

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Take Assessment - EWAN Final Exam - CCNA Exploration: Accessing the WAN (Version 4.0)

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1 Top of Form

Refer to the exhibit. What does the status of 1 under the “Deleted” column indicate in the output?

The Branch router has Inverse ARP disabled.

Split horizon is not enabled on the Branch router.

A static mapping is configured with a wrong DLCI number on the Branch router.

The Frame Relay switch can no longer detect a DTE on the other end of the PVC.

2Top of Form

Which additional functionality is available on an interface when the encapsulation is changed from HDLC to PPP?

flow control

error control

authentication

http://assessment.netacad.net/virtuoso/delivery/pub-doc/exam.shtml


http://assessment.netacad.net/

synchronous communication

3 Top of Form

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

TDM

PPP

HDLC

SLIP

4Top of Form

Refer to the exhibit. Based on the output as shown, which two statements correctly define how the router will treat Telnet traffic that comes into interface FastEthernet 0/1? (Choose two).

Telnet to 172.16.10.0/24 is denied.

Telnet to 172.16.20.0/24 is denied.

Telnet to 172.16.0.0/24 is permitted.





5 Top of FormWhich 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

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6 Top of Form




Refer to the exhibit. From the output of the show interface commands, at which OSI layer is a fault indicated?

application

transport

network

data link

physical

7Top of Form

Which IEEE 802.16 broadband wireless technology allows users to connect to the ISP at speeds comparable to DSL and cable?

Wi-Fi

satellite

WiMAX

Metro Ethernet

8 Top of Form

Refer to the exhibit. A network administrator is considering updating the IOS on Router1. What version of IOS is currently installed on Router1?

1

12.4



15

1841

9Top of Form

Refer to the exhibit. Routers R1 and R2 have been configured with EIGRP in the same autonomous system. Computers PC1 and PC2 are not able to ping each other. Further investigation has revealed that the route to 192.168.10.0 is missing from the routing table on R2. What is the cause of the problem?

The networks are not correctly summarized.

The FastEthernet interfaces on R1 are configured as passive.

The network statements on R2 are incorrectly configured.

EIGRP on R1 does not recognize the 192.168.10.0 network.

10 Top of Form



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.

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11 Top of FormWhich method is most effective in protecting the routing information that is propagated between routers on the network?

Disable IP source routing.

Configure passive interfaces.

Configure routing protocol authentication.

Secure administrative lines with Secure Shell.

12Top of Form

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.

13 Top of FormWhile troubleshooting a PPP link that uses PAP authentication, a network administrator notices an incorrectly configured password in the running configuration. The administrator corrects the error by entering the command ppp pap sent-username ROUTER_NAME password NEW_PASSWORD, but the link still does not come up.

Assuming that the rest of the configuration is correct and that the link has no physical layer problems, what should the administrator do?

Save the configuration to NVRAM.

Shut down the interface then re-enable it.




Generate traffic by pinging the remote router.

Use CHAP to ensure compatibility with the remote router.

14Top of Form

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

15 Top of FormWhen 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

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16 Top of FormWhen would the multipoint keyword be used in Frame Relay PVCs configuration?

when global DLCIs are in use

when using physical interfaces

when multicasts must be supported

when participating routers are in the same subnet

17Top of Form

Which statement is true regarding wildcard masks?

The wildcard mask and subnet mask perform the same function.

The wildcard mask is always the inverse of the subnet mask.

A "0" in the wildcard mask identifies IP address bits that must be checked.

A "1" in the wildcard mask identifies a network or subnet bit.

18 Top of Form

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.




19Top of Form

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 .

20 Top of FormWhat happens when a remote Frame Relay host is receiving more packets than it can process?

A Bc packet is sent.

The BECN bit is marked.

The remote host sets the DE bit.

The Frame Relay switch marks the CIR bit.

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21 Top of FormWhat is accomplished by using the auto secure command on a Cisco router?

It disables remote access to all vty lines.

It activates default ACLs to secure DMZ services.

It disables nonessential system processes and services.

It enables intrusion detection and prevention processes on the router.

22Top of Form

Which Layer 2 access method separates traffic into time slots and is specified by DOCSIS for use with cable high speed Internet service?

TDMA

FDMA

CDMA

S-CDMA

23 Top of FormWhich address provides an example of an IPv6 link-local address?

FE80::1324:ABCD

2001:2345:AB12:1935::FEFF

2001:1234:0000:9CA::0876/64





1234:ABCD:5678:EF00:9234:AA22:5527:FC35

24Top of Form

Which protocol is implicitly denied at the end of an IPv4 access list?

IP

TCP

UDP

HTTP

25 Top of FormAn administrator issues the command confreg 0x2142 at the rommon 1> prompt. What is the effect when this router is rebooted?

Contents in RAM will be erased.

Contents in RAM will be ignored.

Contents in NVRAM will be erased.

Contents in NVRAM will be ignored.

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26 Top of Form

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

27Top of Form

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

28 Top of Form

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.

29Top of Form

Which option correctly defines the capacity through the local loop guaranteed to a customer by the service provider?

BE

DE

CIR

CBIR

30 Top of FormA 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 staffs have been notified to work on their respective issues. Which statement applies to this situation?

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

The symptom gathering stage incorporates researching the details of the software patches.

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

The network and application staffs must make their changes at the same time to accurately measure the effect of the cumulative changes.




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31 Top of Form



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.

32Top of Form

Which technology is used to dynamically map next hop, network layer addresses to virtual circuits in a Frame Relay network?

Inverse ARP

LMI

DLCI

FECN

33 Top of FormWhich encapsulation protocol when deployed on a Cisco router over a serial interface is only compatible with another Cisco router?

PPP

SLIP

HDLC

Frame Relay

34Top of Form

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 successfully resolve the mail server name to an IP address via the use of the nslookup command. At what OSI layer is the problem most likely to be found?

physical layer

data link layer




network layer

application layer

35 Top of Form

Refer to the exhibit. PC1, PC2, and PC3 are configured with dynamic address assignments. PC2 is assigned an IP address from the DHCP server. What would account for the IP addresses that are currently assigned to PC1 and PC3?

Switch S2 port Fa0/12 is configured for full-duplex.

These addresses were included in the DHCP server pools.

Router R1 has a misconfigured IP address on interface Fa1/0.

R1 interface Fa0/0 is not in the same network as the DHCP server.

R1 interfaces Fa0/0 and Fa1/0 do not include the ip helper-address command.

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36 Top of FormWhich statement describes CIR in a Frame Relay network?

It is the amount of data that the customer can "burst".

It is the rate that is guaranteed to the customer by the service provider.

It is the consolidation of data rates from multiple PVCs to a given location.

It is the port speed that is used to access circuits which are connected to the Frame Relay network.

37Top of Form

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.

38 Top of Form





Refer to the exhibit. To reach R2, and for configuring Frame Relay on the point-to-point interfaces shown in the graphic, which DLCI should be used in the frame-relay interface-dlci command that is issued on R1?

100

101

200

201

39Top of Form


Refer to the exhibit. PAT has been implemented on router R2. PC1 and PC2 are unsuccessful when attempting to connect to Internet resources. What is a possible cause?

No NAT pool is configured.

The "inside" and "outside" interfaces are switched.

The access control list is configured with an incorrect access list number.

The access control list is missing a statement for the 10.94.6.0 network.

The ip nat inside source list 1 interface command is pointing to the wrong serial interface.

40 Top of Form


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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41 Top of Form

Refer to the exhibit. What statement is true about the core router devices?

They use multiport internetworking devices to switch traffic such as Frame Relay, ATM, or X.25 over the WAN.

They provide internetworking and WAN access interface ports that are used to connect to the service provider network.

They provide termination for the digital signal and ensure connection integrity through error correction and line monitoring.

They support multiple telecommunications interfaces of the highest speed and are able to forward IP packets at full speed on all of those interfaces.

42Top of Form

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.

43 Top of Form




Refer to the exhibit. Computers on the internal network need access to all servers in the external network. The only traffic that is permitted from the external network must be responses to requests that are initiated on the internal network. Which security measure would satisfy this requirement?

a numbered extended ACL

a named standard ACL

a reflexive ACL

a dynamic ACL

44Top of Form

Which option represents a best practice for applying ACLs?

Named ACLs are less efficient than numbered ACLs.

Standard ACLs should be applied inside the core layer.

ACLs applied to outbound interfaces use fewer router resources.

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

45 Top of FormWhich three parameters must be configured on a router in order to enable SSH? (Choose three.)

retries

hostname

timeouts

domain name

asymmetrical keys

routing protocol

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46 Top of FormWhat 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

47Top of Form

Which three statements are true about creating and applying access lists? (Choose three.)

Access list entries should filter in the order from general to specific.

One access list per port per protocol per direction is permitted.

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

There is an implicit deny at the end of all access lists.

Statements are processed sequentially from top to bottom until a match is found.

The inbound keyword refers to traffic entering the network from the router interface where the ACL is applied.

48 Top of FormA 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 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.

49Top of Form

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

50 Top of Form

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.



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51 Top of Form



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.

52Top of Form

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

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ccna 4 final exam

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