CCNA 基础练习题(3)

161.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test161.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
The company, TestKing, network is running OSPF on the routers as shown in the exhibit above. An
ISDN link provides connectivity to the remote sales office.
Which of the following route types should be configured on the Corporate router to connect to the sales
office’s remote network while minimizing network overhead on the ISDN link?
A. A RIP route
B. An OSPF route
C. A static route
D. A default route
E. A dynamic route
Answer: C

162.Study the Exhibit below carefully:
Test_King#show ip protocol
Routing Protocol is “rip“
Sending updates every 30 seconds, next due in 4 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Redistribution rip
Default version control: send version 1, receive any version
Interface Send Recv Triggered RIP Key-chain
Serial0/0 1 1 2
Serial0/1 1 1 2
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
10.0.0.0
Routing Information Sources:
Gateway Distance Last Update
10.168.11.14 120 00:00:22
Distance: (default is 120)
John#show ip interfaces brief
Interface IP-Address OK? Method Status
FastEthernet0/0 192.168.18.1 YES manual up
Serial0/0 10.168.11.17 YES manual up
FastEthernet0/1 unassigned YES NVRAM administratively down
Serial0/1 192.168.11.21 YES manual up
The exhibit above shows the output from the router. Use it to determine which of the following are
correct. (Select two options.)
A. Router John will get routing updates on the Serial0/1 interface.
B. Router John will issue routing updates out the Serial0/0 interface.
C. Router John makes use of a link-state routing protocol.
D. Router John will get routing updates on the Serial0/0 interface.
E. Router John will issue routing updates out the FastEthernet0/0 interface.
Answer: B, D

163.One of the features of the OSPF routing protocol is that it maintains a topology database of information
about other routers in the network.
Which of the following is a characteristic of this topology database?
A. All entries in the topology database will be included on each router.
B. All routers in the same OSPF area will have one topology database.
C. The Dijkstra algorithm is used in the creation of the topology database.
D. LSA packets are used to update and maintain the topology database.
Answer: D

164.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test164.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
A new router has been installed in the branch office in Lisbon. However, the network administrator
cannot make a backup of the IOS image of the new route to the TFTP server located in the Gibraltar
office. Following the network diagram, can you identify the cause of the problem?
A. IP address if the TFTP server not correct.
B. Incorrect subnet mask of the TFTP server.
C. Default gateway of the TFTP server not properly set.
D. Subnet mask on the Lisbon router not correct
E. Incorrect IP address configured on E0 of the Gibraltar router
Answer: B

165.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test165.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
Using the information in the exhibit above, which of the following command lines would configure the
serial0 port on the TestKing2 router with the least usable host address in the 192.168.32.32 subnet
correctly?
A. TestKing2(config-if)# ip address 192.216.32.63 255.255.255.248
B. TestKing2(config-if)# ip address 192.216.32.38 255.255.255.240
C. TestKing2(config-if)# ip address 192.216.32.39 255.255.255.248
D. TestKing2(config-if)# ip address 192.216.32.63 255.255.255.248 no shut
E. TestKing2(config-if)# ip address 192.216.32.39 255.255.255.248 no shut
F. TestKing2(config-if)# ip address 192.216.32.38 255.255.255.248
Answer: F

166.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test166.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
To protect the records server, a named access list called records block has been employed to prevent
student and Internet access to the records. This access list was applied to the e0 interface of the
TestKing3 router in the outbound direction.
Which of the following conditions should the access list contain to meet these requirements?
(Select two options.)
A. permit 172.16.64.252 0.0.0.0 172.16.0.0 0.0.255.255
B. permit 172.16.0.0 0.0.255.255 172.16.64.252 0.0.0.0
C. deny 172.16.64.252 0.0.0.0 172.16.62.0 0.0.0.255
D. deny 172.16.62.0 0.0.0.255 172.16.64.252 0.0.0.0
E. deny 172.16.64.252 0.0.0.0 any
F. permit any any
Answer: B, D

167.Study the Exhibit below carefully:

. 01100100.00001010.11101011.00100111
. 10101100.00010010.10011110.00001111
. 11000000.10100111.10110010.01000101
Which of the following statements regarding the IP addresses as illustrated in the exhibit above, are true?
(Select three options.)
A. Address C is a public Class C address.
B. Address C is an exclusive Class C address.
C. Address B is a public Class B address.
D. Address A is a public Class A address.
E. Address B is a private Class B address.
F. Address A is an exclusive Class A address.
Answer: A, D, E

168.Study the Exhibit below carefully:
RouterA# show running-config
〈some output text omitted〉
interface serial0/0
bandwidth 64
ip address 172.16.100.2 255.255.0
encapsulation frame-relay
frame-relay map ip 172.16.100.1 200 broadcast
〈br〉〈button onClick=“window.open(’./picture/test168.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
The Hong Kong office with Router TestKing1, has a communication problem with the Tokyo branch
office which has Router TestKing2. The scenario is the following:
Router TestKing1 is unable to reach Router TestKing2. Both routers are running IOS version 12.0.
After reviewing the command output and graphic, your boss wants to know what is the most probable
cause of the problem. What should you tell him?
A. Bandwidth configuration incorrect
B. IP address not correct
C. Improper map statement
D. Improper LMI configuration
Answer: C

169.You are a network technician at TestKing and have to locate and fix a router problem.
Scenario is as follows:
There are three routers named TestKing1, TestKing2, and TestKing3 respectively. You know that
TestKing2 and TestKing3 are 100% operational.
The routing protocol being used is Single area OSPF.
TestKing1 has recently been installed and configured one of the trainees. However, he did not succeed in
configuring TestKing1 correctly.
He tells you that connectivity is not complete because routing tables are not being updated correctly.
You must now locate and fix this router configuration problem.
Current configuration:
TestKing1
E0: 192.168.33.1/24
S0: 192.168.100.50/30
Secret Password: testking
TestKing2
E0: 192.168.34.1/24
S0: 192.168.100.10/30
S1: 192.168.100.6/30
Secret Password: testking
TestKing3
E0: 192.168.35.1/24
S1: 192.168.100.9/30
Secret Password: testking
Click on the picture of host connected to a router by a serial console cable.
〈br〉〈button onClick=“window.open(’./picture/test169.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
Answer:
TestKing1#config t
TestKing1(config)#no router ospf 2
TestKing1(config)#^Z
TestKing1#show ip ospf
TestKing1#config t
TestKing1(config)#router ospf 2
TestKing1(config)#network 192.168.33.0 0.0.0.255 area 0
TestKing1(config)#network 192.168.100.4 0.0.0.3 area 0
TestKing1(config)#^Z
TestKing1#show ip route
TestKing1#copy running startup

170.Which of the following commands should you use if you were asked to apply an access list on a virtual
terminal line of a router?
A. RouterTK(config-line)# access-class 10 in
B. RouterTK(config-if)# ip access-class 23 out
C. RouterTK(config-line)# access-list 150 in
D. RouterTK(config-if)# ip access-list 128 out
E. RouterTK(config-line)# access-group 15 out
F. RouterTK(config-if)# ip access-group 110in
Answer: A

171.On three different occasions an administrator configured a router, and after testing the configuration
saved it to NVRAM by issuing the copy running-config startup-config command. After each successful
save the administrator issued the reload command. However, each time when the router restarted, it
appeared to have the default blank configuration.
What could be the cause of such results?
A. The NVRAM is corrupted.
B. The boot system commands were omitted in the configuration.
C. The configuration register setting is incorrect.
D. The upgraded configuration incompatible with the hardware platform.
E. The upgraded IOS incompatible with the hardware.
Answer: C

172.One of your trainees wants to know which of the following statements regarding the command ip route
172.16.3.0 255.255.255.0 192.168.2.4 are true. What can you tell her? (Select two options.)
A. The default administrative distance is used.
B. The command is used to establish a static route.
C. The command is used to configure the routers.
D. The command is used to establish a stub network.
E. The subnet mask for the source address is 255.255.255.0
Answer: A, B

173.Which of the following statements can you use to describe the process identifier that is used to run OSPF
on a router? (Select two options.)
A. It is needed to identify a unique instance of an OSPF database.
B. It is an optional parameter only necessary if multiple OSPF processes are used.
C. It is locally significant.
D. It is globally insignificant
E. All routers in the same OSPF area must have the same process ID to exchange routing information.
Answer: A, C

174.You were told to block all traffic from an entire subnet with a standard access control list by your boss.
What IP address and wildcard mask should you use in the access control list to block all hosts from the
subnet on which the host 192.168.16.43/28 resides?
A. 192.168.16.32 0.0.0.16
B. 192.168.16.43 0.0.0.212
C. 192.168.16.0 0.0.0.15
D. 192.168.16.32 0.0.0.15
E. 192.168.16.0 0.0.0.31
F. 192.168.16.16 0.0.0.31
Answer: D

175.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test175.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
You are the network administrator at TestKing. TestKingA is using multiple routing protocols according
to the exhibit. Assuming that all networks that are connected are advertised, there are no redistribution
of routes, and all other parameters are set to default, which path do you think will TestKingA use to
reach TestKingD?
A. It will take the route via TestKingB.
B. It will take the route via TestKingC.
C. It will use the route with the highest metric.
D. It will load balance over both paths.
E. It will take the shortest route
Answer: B

176.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test176.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
You are the network administrator in this scenario. The exhibit illustrates a console session running on a
router and you have connected your Windows workstation directly to the router E0 port as well.
Which of the following are among the requirements for the copy flash tftp command to be successful?
(Select three options.)
A. TFTP server software must be activated.
B. TFTP server software must be running on the administrator’s workstation.
C. There must be space in the flash memory of the router to accommodate the file to be copied.
D. The copy flash tftp command must be supplied the IP address of the administrator’s workstation.
E. The administrator’s workstation must be on the same subnet as the router E0 interface.
F. The Ethernet connection between the router and the administrator’s workstation must be via straightthrough
cable.
Answer: B, D, E

177.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test177.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
You work as a network administrator at TestKing, You received complaints from the TestKing
employees that their Frame Relay connection to the corporate site is very slow. You have a suspicion that
the link is overloaded. Which output value indicates to the local router that traffic is sent to the corporate
site is experiencing congestion taking into account the partial output of the Router# show frame relay pvc
command shown in the exhibit?
A. in DE packets 0
B. last time PVC status changed 00:25:40
C. in BECN packets 192
D. DLCI = 100
E. in FECN packets 147
Answer: C

178.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test178.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
A. This router was configure with the commands:
RtrA(config)#router rip
RtrA(config-router)# network 172.16.0.0
RtrA(config-router)# network 10.0.0.0
B. This router was configured with the commands:
RtrA(config)# router rip
RtrA(config-router)# network 192.168.1.0
RtrA(config-router)# network 10.0.0.0
RtrA(config-router)# network 192.168.168.0
C. This router was configured with the commands:
RtrA(config)# router rip
RtrA(config-router)# version 2
RtrA(config-router)# network 172.16.0.0
RtrA(config-router)# network 10.0.0.0
D. Split horizon was disabled on this router.
E. Network 192.168.168.0 will be displayed in the routing table.
F. Network 10.0.0.0 will be displayed in the routing table.
Answer: A, F

179.What can you tell the CEO of the company that you work for, are the advantages of using VLANs?
(Select three options.)
A. VLANs allow access to network services based on department, not physical location.
B. VLANs utilize packet filtering to enhance network security.
C. VLANs provide a low-latency, high bandwidth internetworking alternative.
D. VLANs provide a method of communication between IP addresses in large networks.
E. VLANs establish broadcast domains in switched networks.
F. VLANs can greatly simplify adding, moving, or changing hosts on the network.
Answer: A, E, F

180.You need to establish a telnet session to verify the status of a physical connection. You then issue the
debug frame-relay lmi command. However, after 40 seconds, you do not get any output resulting from
the debug command.
Why are no messages displayed?
A. The IP addresses are configured incorrectly.
B. Frame Relay LMI messages not displayed in real time.
C. The administrator must issue the enable frame-relay lmi debug command.
D. The administrator must issue the terminal monitor command.
E. Debug messages can only be received once through the console port.
F. The administrator must issue the show frame-relay lmi vty 0 4 command-
Answer: D

181.One of your trainees wants to know what values are used to elect the root bridge in a spanning treetopology.
What can you tell her? (Select two options.)
A. The BPDU version number
B. The access layer bridge setting
C. The Bridge ID
D. The spanning-tree update number
E. The bridge priority
F. The VLAN number
Answer: C, E

182.Which of the following are the routing protocols that are capable of supporting a network that uses
VLSM and route summarization? (Select three options.)
A. IGRP
B. EIGRP
C. RIP v1
D. RIP v2
E. OSPF
F. VTP
G. LSA
Answer: B, D, E

183.On the left are access list conditions and on the right design goals. Match up the corresponding pairs.
(Please note: Not all options are used)
〈br〉〈button onClick=“window.open(’./picture/test183.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
Answer:
〈br〉〈button onClick=“window.open(’./picture/test183answer.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉

184.You are the network administrator. Your aim is to support a multi-protocol network that includes IP,
AppleTalk and IPX. Which routing protocol can you use that will achieve this aim?
A. OSPF
B. EIGRP
C. RIP v2
D. IGRP
E. RIP v1
Answer: B

185.Which one of the following represents the bandwidth capacity of a single ISDN BRI B channel?
A. 16kb/s
B. 64kb/s
C. 128kb/s
D. 144kb/s
E. 192kb/s
F. 256kb/s
Answer: B

186.The Missouri office router is connected through its s0 interface to the Alabama Headquarters router s1
interface. The Alabama router has two LANs. Missouri users obtain Internet access through the
Headquarters router. The network interfaces in the topology are addressed as follows: Missouri: e0 –
192.168.35.17/28; s0- 192.168.35.33/28; Alabama: e0- 192.168.35.49/28 e1 – 192.168.35.65/28, s1 -
192.168.35.34/28. The accounting server has the address of 192.168.35.66/28.
Match the access list conditions on the left with the goals on the right. (Please note: Not all options on the
left are used.)
〈br〉〈button onClick=“window.open(’./picture/test186.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
Answer: Pending. Send your suggestion to [e-mail]

187.You work as network administrator at TestKing. There are three routers that are connected serially. All
serial links all tested to be OK. The routing protocol is single area OSPF.
The TestKing2 router was replaced yesterday since it broke down. The router replacement has caused
problems. Routing tables are not correctly updated and some traffic between the sites are not routed.
The routers are configured as follows:
TestKing1
E0: 192.168.3.1/24
S0: 172.16.10.5/30
Secret password: testking
TestKing2
E0: 192.168.4.1/24
S0: 172.16.10.10/30
S1: 172.16.10.6/30
Secret password: testking
TestKing3
E0: 192.168.5.1/24
S1: 172.16.10.9/30
Secret password: testking
〈br〉〈button onClick=“window.open(’./picture/test187.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
Answer:
TestKing2#config
TestKing2(config)#no router ospf 2
TestKing2(config)#router ospf 2
TestKing2(config-rooter)#network 192.168.4.0 0.0.0.255 area 0
TestKing2(config-rooter)#network 172.16.10.8 0.0.0.3 area 0
TestKing2(config-rooter)#network 172.16.10.4 0.0.0.3 area 0
TestKing2(config-rooter)#Ctrl-Z
TestKing2#copy running start
TestKing2#

188.Which of the following fields of frame is used by detection schemes to perform its function?
A. ERR
B. Flag
C. FCS
D. MTU
E. MAC
F. PDU
Answer: C

189.Your company has been assigned the following IP address for its network: 199.141.27.0
Of subnet mask of 255.255.255.240 was selected to make provision for the LAN design.
Which of the following addresses can be assigned to hosts on the resulting subnets? (Select three options.)
A. 199.141.27.126
B. 199.141.27.175
C. 199.141.27.33
D. 199.141.27.119
E. 199.141.27.208
F. 199.141.27.112
Answer: A, C, D

190.You have been asked to configure a default route.
Which of the IOS commands mentioned below will accomplish this task? (Select two options.)
A. LTD(config)# ip route 0.0.0.0 0.0.0.0 192.168.15.36
B. LTD(config)# ip route 0.0.0.0 192.168.15.36 255.255.255.255
C. LTD# ip default-network 0.0.0.0 192.168.15.36 255.255.255.255
D. LTD(config)# ip route 0.0.0.0 0.0.0.0 E0
E. LTD(config)# ip route 0.0.0.0 255.255.255.255 S0
F. LTD(config-router)# ip route 255.255.255.255 0.0.0.0 192.168.15.36
Answer: A, D

191.Why is it beneficial for individuals in the data communication industry to use the layered OSI reference
model? (Select two options.)
A. It encourages industry standardization by defining what functions occur at each layer of the model.
B. It necessitates changes in functionality in one layer to other layers.
C. It enables equipment efficiency from different vendors to use the same electronic components.
D. It divides the network communication process into smaller and simpler components, thus aiding
component development, design, and troubleshooting.
E. It supports the evolution of multiple competing standards, and thus enhances business equipment
manufacturing opportunities.
Answer: A, D

192.Which routing protocol would allow a network administrator scalability and VLSM support and
minimize overhead if the network administrator want to merge different networks all using routers from
multiple vendors.
A. VTP
B. RIP
C. EIGRP
D. OSPF
E. IGRP
Answer: D

193.You have been assigned a trainee who wants to know which of the following modes are valid when a
switch port is used as a VLAN trunk. What can you tell him? (Select three options.)
A. blocking
B. auto
C. desirable
D. on
E. transparent
F. learning
Answer: B, C, D

194.When you execute Router# show frame-relay, which of the following command options will be displayed?
(Select three options.)
A. dlci
B. clients
C. pvc
D. neighbors
E. lmi
F. map
Answer: C, E, F

195.A newly assigned trainee wants to know from you what the “Inside Global“ address represents in the
configuration of NAT. What can you tell him?
A. The MAC address used by inside hosts to connect to the Internet.
B. The summarized address for all internal subnetted addresses.
C. A private IP address assigned to a host on the inside network.
D. A registered address that represents an inside host to an outside network.
E. A unique IP address used on an intranet.
Answer: D

196.What does the concept route aggregate mean when one talks about using variable subnet masking?
A. Deleting unusable addresses through the creation of many subnets.
B. Combining routes to multiple networks into one supernet.
C. Reclaiming unused space by means of changing the subnet size.
D. Calculating the available host addresses in the AS.
Answer: B

197.Which of the following statements describes full or half-duplex Ethernet operation correctly? (Select two
options.)
A. Full-duplex Ethernet uses CSMA/CD to prevent collisions.
B. Half-duplex Ethernet uses a loopback circuit to detect collisions.
C. A full-duplex Ethernet card allows 20Mbps for data transmission.
D. Full-duplex Ethernet makes use of two pairs of wires for data.
E. An Ethernet hub can operate both half and full duplex simultaneously.
Answer: C, D

198.Select two of the following statements that are characteristics of a Frame Relay point-to-point
subinterface.
A. Needs to use Inverse ARP.
B. Maps a single IP subnet per DLCI.
C. Maps a single IP subnet across multiple DLCIs.
D. Addresses and resolves NBMA split horizon issues.
E. Needs the frame-relay map command.
Answer: B, D

199.You work as a network administrator for TestKing.com. You must design an IP addressing scheme to
support the company’s network that will provide for a minimum of 300 sub-networks and a maximum of
50 host addresses per subnet. Which of the following subnet masks will enable you to support an
appropriate addressing scheme given the fact that you work with only one Class B address.
(Select two options.)
A. 255.255.255.0
B. 255.255.255.192
C. 255.255.248.0
D. 255.255.252.0
E. 255.255.255.128
F. 255.255.255.224
Answer: B, E

200.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test200.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
The ISP assigned Network 207.134.6.0 to TestKing. You are the network administrator at TestKing and
would like to configure one router with the commands to access the Internet.
Which of the following commands will you use to configure the Gateway Router to allow Internet access
to the entire network? (Select two options.)
A. Gateway(config)# ip route 0.0.0.0 0.0.0.0 207.134.6.1.
B. Gateway(config)# router rip
Gateway(config-router)# network 207.134.6.0 default
C. Gateway(config)# ip route 207.134.6.0 255.255.255.0 Serial0/0
D. Gateway(config)# router rip
Gateway(config-router)# network 207.134.6.0
E. Gateway(config)# ip default-network 207.134.6.0
Answer: A, E

201.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test201.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
Telnet traffic from the Graphics Department is prohibited from reaching the HR server attached to the
Eastfield router, but will allow Telnet traffic to other destinations due to an access list that has been
designed to do precisely this. Given the following access list:
access-list 101 deny tcp any any eq 23
permit ip any any
On which router, in what direction, and which interface, should the access list be placed to most
efficiently implement the above list? (Select three options.)
A. Westfield
B. Eastfield
C. out
D. in
E. s0
F. e0
Answer: B, C, F

202.Study the Exhibit below carefully:
London#show vtp status
VTP Version: 2
Configuration Revision: 0
Maximum VLANs supported locally: 64
Number of existing VLANs: 5
VTP Operating Mode: Client
VTP Domain Name: London
VTP Pruning Mode: Disabled
VTP V2 Mode: Disabled
VTP Traps Generation: Disabled
Above is an illustration of the output of the London switch. What is the function of this switch?
A. Learn and saved VTP configuration in the running configuration.
B. Create and change VLANs.
C. Passes information about VTP configuration.
D. VTP is disabled on this device.
E. VTP is not saved to NVRAM.
Answer: E

203.Which of the following will allow a router to respond to an ARP request that is meant for a remote host?
A. Gateway DP
B. Reverse ARP
C. proxy ARP
D. Inverse ARP
E. indirect ARP
Answer: C

204.Study the Exhibit below carefully:
Central# show running-config Remote# show running-config
〈some output text omitted〉〉 〈some output text omitted
interface Serial0/0 interface Serial0/0
ip address 10.0.8.1 255.255.248.0 ip address 10.0.15.2255.255.248.0
encapsulation frame-relay encapsulation frame-relay
frame-relay map ip 10.0.15.2 200 frame-relay map ip 10.0.8.1 100
! !
router rip router rip
network 10.0.0.0 network 10.0.0.0
A remote site has just been connected to the central office. However, remote users can not access
applications at the central office. The remote router can be pinged from the central office router. After
reviewing the command output shown in the exhibit illustrated above, what is the most likely reason for
the problem?
A. The Frame Relay PVC is down.
B. The IP addressing on the Central/Remote serial link is incorrect.
C. RIP routing information is not being forwarded.
D. Frame Relay inverse-ARP is not properly configured.
Answer: C

205.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test205.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
Consider the scenario as depicted in the exhibit. Assuming the following aims:
1) allow Telnet from the Internet to the HR server
2) allow HTTP access from the Internet to the web server
3) all other traffic from the Internet should be blocked
Which of the following access list statements do you think are necessary to accomplish all three aims?
(Select two options.)
A. access-list 101 permit tcp any 172.17.18.252 0.0.0.0 eq 80
B. access-list 1 permit tcp any 172.17.17.252 0.0.0.0 eq 23
C. access-list 101 permit tcp 172.17.17.252 0.0.0.0 any eq 23
D. access-list 101 deny tcp any 172.17.17.252 0.0.0.0 eq 23
E. access-list 101 deny tcp any 172.17.18.252 0.0.0.0 eq 80
F. access-list 101 permit tcp any 172.17.17.252 0.0.0.0 eq 23
Answer: A, F

206.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test206.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
Which of the statements mentioned below will describe the network as illustrated in the exhibit? (Select
two options.)
A. There are two broadcast domains in the network.
B. There are four broadcast domains in the network.
C. There are six broadcast domains in the network.
D. There are four collision domains in the network.
E. There are five collision domains in the network.
F. There are seven collision domains in the network.
Answer: A, F

207.Which of the following commands will display the CHAP authentication process as it occurs between the
two routers in the network when you know that all WAN links inside the company’s network use PPP
with CHAP for authentication security?
A. show ppp authentication
B. debug PAP authentication
C. debug PPP authentication
D. show interface serial0
E. show CHAP authentication
Answer: C

208.Which of the following commands are required to create an 802.1Q link on an IOS based switch when
you want to establish a trunk link between two switches? (Select two options.)
A. Switch(vlan)# mode trunk
B. Switch(config)# switchport access mode trunk
C. Switch(config-if)# switchport mode trunk
D. Switch(config-if)# switchport trunk encapsulation dot1q
E. Switch(config)# switchport access mode 1
F. Switch(vlan)# trunk encapsulation dot1q
Answer: C, D

209.Which of the following WAN technologies provides small offices and private homes using normal
telephone lines with higher speed digital dial-up service?
A. X25
B. Frame Relay
C. ATM
D. ISDN
E. ATX
Answer: D

210.How would you configure a router in a Frame Relay network to prevent issues such as split horizons
hampering routing updates?
A. Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the subinterface.
B. Configure many sub-interfaces on the same subnet.
C. Configure each Frame Relay circuit as a point-to-point line.
D. Configure only one sub-interface to establish multiple PVC connections.
E. Configure a single sub-interface connect to multiple remote router interfaces.
Answer: A

211.Study the Exhibit below carefully:
hostname Barrymore
!
enable password gatekeeper
!
isdn switch-type basic-5ess
!
!
username Central password cisco
interface BRI0
ip address 192.168.0.1 255.255.255.0
encapsulation ppp
dialer idle-timeout 180
dialer map ip 192.168.0.2 name Remote 6662000
dialer-group 1
no fair-queue
ppp authentication chap
!
router rip
network 192.168.0.2
!
no ip classless
ip route 192.168.10.0 255.255.0.0 192.168.0.2
ip route 192.168.20.0 255.255.0.0 192.168.0.2
!
dialer-list 1 protocol ip permit
Above is the result of the output of show running-config command. What is causing the problem when
the Barrymore router is unable to make calls to the remote site?
A. The authentication password is missing from the dialer map command.
B. The switch-type must be configured.
C. Routing updates are being blocked by the applied dialer-list.
D. The dialer list only permits one protocol.
E. The name in the dialer-map must match the name in the username command.
Answer: E

212.Assuming that all OSPF routers in a particular area are configured with identical priority values, which
of the following values would a router use for OSPF router ID when it does not have a loopback
interface?
A. The IP address of the first Fast Ethernet interface.
B. The IP address of the console management interface.
C. The highest IP address among its active interfaces.
D. The lowest IP address among its active interfaces.
E. The priority value until a loopback interface is configured.
Answer: C

213.Study the Exhibit below carefully:
〈br〉〈button onClick=“window.open(’./picture/test213.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
Which of the following is the correct IP address configuration for HostA?
A. IP 192.168.100.31 255.255.255.240 default-gateway 192.168.100.18
B. IP 192.168.100.30 255.255.255.240 default-gateway 172.16.1.1
C. IP 192.168.100.20 255.255.255.240 default-gateway 192.168.100.17
D. IP 192.168.100.21 255.255.255.248 default-gateway 192.168.100.17
E. IP 192.168.100.19 255.255.255.248 default-gateway 172.16.1.1
Answer: C

214.Study the Exhibit below carefully:
RtrA# show running-config RtrB# show running-config
〈some output text omitted〉 〈some output text omitted〉
enable password cisco enable password cisco
!
hostname RtrA hostname RtrB
username RtrB password cisco username RtrA password cisco1
! !
interface serial 0/0 interface serial 0/0
ip address 10.0.8.1 255.255.248.0 ip address 10.0.15.2 255.255.248.0
encapsulation ppp encapsulation ppp
ppp authentication chap ppp authentication chap
After considering the command output of both routers, what is the cause of the problem if connectivity
cannot be established between the two routers?
A. Authentication needs to be changed to PAP for both routers.
B. Serial ip addresses of routers are not on the same subnet.
C. Username/password is incorrectly configured.
D. Router names are incorrectly configured.
Answer: C

215.The terms on the left can be associated with the descriptions on the right. Can you make the correct
associations? (Please note: Not all options are used)
〈br〉〈button onClick=“window.open(’./picture/test215.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
Answer:

216.The terms on the left can be associated with different OSI layers illustrated on the right. Can you make
the correct associations? (Please note: Not all options are used)
〈br〉〈button onClick=“window.open(’./picture/test216.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
Answer:
〈br〉〈button onClick=“window.open(’./picture/test216answer.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉

217.Which of the following types of packets will be allowed entry when a serial interface’s inbound access list
has been configured to prohibit entry for TCP and UDP ports 21, 23 and 25? (Select three options.)
A. SMTP
B. STP
C. FTP
D. Telnet
E. HTTP
F. POP3
Answer: B, E, F

218.One of the trainees assigned to you want to know which services use TCP. What can you tell him? (Select
three options.)
A. DHCP
B. SMTP
C. SNMP
D. FTP
E. HTTP
F. TFTP
Answer: B, D, E

219.Which of the following network masks would you use to reduce any wastage of IP addresses in point-topoint
WAN links on a network that supports VLSM?
A. /38
B. /30
C. /27
D. /23
E. /18
Answer: B

220.How would you configure a router to avoid situations such as split horizon issues hampering routing
updates on a Frame Relay network?
A. Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the subinterface.
B. Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic.
C. Configure one sub-interface to disperse into multiple PVC connections to multiple remote router
interfaces.
D. Configure as many as possible sub-interfaces on the same subnet.
Answer: A

221.You are the network administrator for TestKing. The network consists of the single Windows 2000
Active Directory domain testking.com. Windows 2000 is used on all servers and client computers in the
network. All three routers, named TestKing1, TestKing2, and TestKing3 used by TestKing are Cisco
routers. All have been configured with the Single Area OSPF routing protocol.
The TestKing network is shown in the following exhibit:
〈br〉〈button onClick=“window.open(’./picture/test221.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
You are required to correct the configuration on the TestKing1 router. TestKing1 has been installed and
configured. However, connectivity is not complete since the routing tables are not updated properly.
On the other hand TestKing2 and TestKing3 have been working correctly.
Current configuration:
TestKing1
E0: 192.168.33.1/24
S0: 192.168.100.5/30
Secret password: testking
TestKing2
E0: 192.168.34.1/24
S0: 192.168.100.10/30
S1: 192.168.100.6/30
Secret password: testking
TestKing3
E0: 192.168.35.1/24
S1: 192.168.100.9/30
Secret password: testking
Answer:
〈Click on Host 2〉
TestKing1#config t
TestKing1(config)#router ospf 2
TestKing1(config)#network 192.168.33.0 0.0.0.255 area 0
TestKing1(config)#network 192.168.100.4 0.0.0.3 area 0
TestKing1(config)#〈CONTROL-Z〉
TestKing1#

222.With regard to ISDN, which of the following are true? (Choose all that apply.)
A. Legacy DDR can use port information to define interesting traffic.
B. Legacy DDR can configure multiple dialer configurations on the same interface.
C. Legacy DDR can use ACLs to define interesting traffic.
D. HDLC or PPP can be used to encapsulate ISDN D channel information.
E. The BRI interfaces on ISDN routers with dialer profiles configured cannot belong to multiple dialer
pools.
F. Dialer profiles cannot use ACLs to define interesting traffic.
Answer: B, C, E

223.You are a technician at TestKing. Your newly appointed TestKing trainee wants to know what the
characteristics of named access list are.
What would your reply be? (Choose all that apply.)
A. You can delete individual statements in a named access list.
B. Named access lists require a numbered range from 1000 to 1099.
C. Named access lists must be specified as standard or extended.
D. You can use the ip access-list command to create named access lists.
E. You cannot delete individual statements in a named access list.
F. You can use the ip name-group command to apply named access lists.
Answer: A, C, D

224.You are a technician at TestKing. Your newly appointed TestKing trainee wants to know what the
maximum number of hops are that OSPF allows before marking a network as unreachable.
What would your reply be?
A. 15
B. 16
C. 99
D. 255
E. Unlimited
Answer: E

225.You are a technician at TestKing. Your newly appointed TestKing trainee wants to know which services
use UDP.
What would your reply be? (Choose all that apply.)
A. TACACS
B. Telnet
C. SMTP
D. SNMP
E. HTTP
F. TFTP
Answer: D, F

226.With regard to ISDN, which of the following are true? (Choose all that apply.)
A. Each ISDN B channel has transmission speeds of up to 64 kbps.
B. The ISDN B channel can carry video, voice or data.
C. The ISDN B channel transmission rate varies depending on the service used.
D. The ISDN D channel transmits control information.
E. The ISDN B channels can be configured with different subnets and encapsulation types when dialer
profiles are configured.
Answer: A, B, D

227.You are a technician at TestKing. Your newly appointed TestKing trainee wants to know which services
use TCP.
What would your reply be? (Choose all that apply.)
A. NTP
B. NNTP
C. SMTP
D. SNMP
E. HTTPS
F. TFTP
Answer: B, C, E

228.You are a technician at TestKing. Your newly appointed TestKing trainee wants to know what the
purpose of Inverse ARP is.
What will your reply be?
A. It is used to map a known IP address to a MAC address
B. It is used to map a known DLCI to a MAC address
C. It is used to map a known MAC address to an IP address
D. It is used to map a known DLCI to an IP address
E. It is used to map a known MAC address to DLCI
F. It is used to map a known DLCI to a MAC address
Answer: D

229.You are the network administrator at TestKing. You verify the configuration of a newly installed host by
establishing an FTP connection to a remote server.
What is the highest layer of the protocol stack used in this operation?
A. application
B. presentation
C. session
D. transport
E. network
F. data link
G. physical
Answer: A

230.You are a trainee technician at TestKing. Your instructor tells you that the OSPF routing protocol
maintains a topology database of information about other routers in the network. Your instructor wants
to know what the characteristics of this database are.
What would your reply be?
A. The Dijkstra SPF algorithm is used to create the topology database.
B. All entries listed in the topology database will be included in the routing tables on each router.
C. The topology database is a routing table for which no path decisions have been made.
D. Each router in the OSPF area will have a unique topology database.
E. The topology database is updated by link-state advertisements (LSAs).
Answer: E

231.You are the network administrator at TestKing. The TestKing network is shown in the following exhibit:
〈br〉〈button onClick=“window.open(’./picture/test231.jpg’,’Network’,’height=450,width=650,status=no,toolbar=no,menubar=no,location=no,titlebar=no,scrollbars=no,alwaysRaised=1,resizable=yes’)“〉Exhibit〈/button〉〈br〉
〈br〉
You want to apply the following access control list to one of the TestKing routers.
access-list 101 permit tcp 192.168.1.16 0.0.0.15 192.168.2 16 0.0.0.15 eq 23
With regard to this scenario, which of the following statements are true? (Choose all that apply.)
A. Telnet traffic from 192.168.1.16 0.0.0.15 to 168.2.16 0.0.0.15 is allowed.
B. SMTP traffic from 192.168.1.16 0.0.0.15 to 168.2.16 0.0.0.15 is allowed.
C. The ACL is configured to allow traffic from one specific host to another.
D. The ACL should be applied inbound to the e0 interface of Router TestKing1.
E. The ACL should be applied outbound to the e0 interface of Router TestKing1.
Answer: A, D

232.You are a trainee technician at TestKing. Your instructor shows you the following output:
hostname testking1 hostname testking2
! !
username testking2 password king username testking1 password king
! !
interface serial 0 interface serial 0
ip address 172.23.56.2 255.255.255.0 ip address 172.23.56.3 255.255.255.0
encapsulation ppp encapsulation ppp
clockrate 56000 pp authentication chap
She tells you that the output was taken from two directly connected routers. Your instructor wants to
know which of the following lines will be displayed when you issue the Router# show interface serial0
command.
What will your reply be? (Choose all that apply.)
A. Serial 0 is down, line protocol is down
B. Serial 0 is up, line protocol is up
C. Open: IPCP, CDPCP
D. LCP closed
E. LCP open
Answer: B, E

233.You are a technician at TestKing. You have encapsulated an ISDN link on the TestKing network with
PPP. Your newly appointed TestKing trainee wants to know why you did not use HDLC to encapsulate
the ISDN link.What will your reply be? (Choose all that apply.)
A. PPP is easier to configure and maintain than HDLC.
B. Different equipment vendors consistently implement PPP.
C. PPP can be routed across public facilities, while HDLC is not.
D. PPP uses authentication to prevent unauthorized access to the ISDN circuit.
E. On circuit-switched ISDN links PPP is faster and more efficient than HDLC.
Answer: B, D

234.mode to accomplish this?
A. TK1# show ip ospf interface
B. TK1# show ip ospf priority
C. TK1# show ospf neighbor detail
D. TK1# show ospf processes
E. TK1# show ospf neighbor state
Answer: A

235.You are the network technician at TestKing. TestKing has a router that is connected to a Frame Relay
WAN link using a serial DTE interface. Your newly appointed TestKing trainee wants to know how the interface
clock rate is determined on this router.
What will your reply be?
A. It is determined by the CSU/DSU.
B. It is determined by the far end router.
C. It is specified in the clock rate command.
D. It is determined by the Layer 1 bit stream timing.
Answer: A

236.You are the network technician at TestKing. You tell your newly appointed TestKing trainee that
discontiguous networks in the IP addressing scheme can create problems when a routing protocol tries to
identify the next hop. Your trainee now wants to know which routing protocols can be used to minimize
the effects of these problems.What would your reply be? (Choose all that apply.)
A. IGRP
B. ICMP
C. OSPF
D. RIP v1
E. RIP v2
F. EIGRP
Answer: C, E, F
------------------------------------------------
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2004.11.27