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Refer to the exhibit. An administrator pings the default gateway at 10.10.10.1 and sees the output as shown. At which OSI layer is the problem?()A.data link layerB.application layerC.access layerD.session layerE.network layer

题目
Refer to the exhibit. An administrator pings the default gateway at 10.10.10.1 and sees the output as shown. At which OSI layer is the problem?()

A.data link layer

B.application layer

C.access layer

D.session layer

E.network layer

参考答案和解析
参考答案：E
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相似问题和答案

第1题：

A host computer has been correctly configured with a static IP address, but the default gateway is incorrectly set. Which layer of the OSI model will be first affected by this configuration error?

A. Layer 1

B. Layer 2

C. Layer 3

D. Layer 4

E. Layer 5

F. Layer 6

E. Layer 7


正确答案：C
C 解析：Explanation: IP Addressing and IP routing resides on the OSI Network layer, which is layer 3.

第2题：

Refer to the exhibit. BigBids Incorporated is a worldwide auction provider. The network uses EIGRP as its routing protocol throughout the corporation. The network administrator does not understand the convergence of EIGRP. Using the output of the show ip eigrp topology all - links command, answer the administrator‘s questions.Which three networks is the router at 172.17.10.2 directly connected to?（）

A. 172.17.0.0/30

B. 172.17.1.0/24

C. 172.17.2.0/24

D. 172.17.3 .0/25

E. 172.17.3.128/25

F. 172.17.10.0/24


参考答案：C, E, F

第3题：

While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."

At which OSI layer is this problem associated with?

A．The data link layer

B．The application layer

C．The access layer

D．The session layer

E．The network layer


正确答案：E
解析：Explanation:
TCP/IP includes ICMP, a protocol designed to help manage and control the operation of a TCP/IP network. The ICMP protocol provides a wide variety of information about a network's health and operational status. Control message is the most descriptive part of a name. ICMP helps control and manage IP's work and therefore is considered part of TCP/IP's network layer.

第4题：

A TestKing.com technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command.In which OSI layer is the problem most likely occurring?（）

A. Physical

B. Data link

C. Network layer

D. Transport layer

E. Application layer


参考答案：B

第5题：

Refer to the above exhibit. Why is the 140.140.0.0 network not used as the gateway of last resort even though it is configured first?()

A.The last default - network statement will always be preferred.

B.A route to the 140.140.0.0 network does not exist in the routing table.

C.Default - network selection will always prefer the statement with the lowest IP address.

D.A router will load balance across multiple default - networks; repeatedly issuing the show ip route command would show the gateway of last resort changing between the two networks.


参考答案：B

第6题：

A Ezonexam technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command.

In which OSI layer is the problem most likely occurring?

A．Physical

B．Data link

C．Network layer

D．Transport layer

E．Application layer


正确答案：B
解析：Explanation:Asthequestionstatesthatseriallineisup,itmeanstheproblemisnotontheNetworklayer.Theadministratorcannotseeanyoutputbyissuingtheshowcdpneighborscommand.ItmeansthatCDPisdisabledandCDPisaprotocolthatrunsoverLayer2(thedatalinklayer)onallCiscorouters,bridges,accessservers,andswitches.

第7题：

Refer to the exhibit. A partial routing configuration is shown. Complete the configuration so that only the default - network is redistributed from EIGRP 190 into EIGRP 212. Which ACL statement completes the configuration correctly? （）

A. access - list 100 permit ip 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0 .0

B. access - list 100 permit ip host 0.0.0.0 any

C. access - list 100 permit ip any host 0.0.0.0

D. A default -network cannot be redistributed between routing processes.


参考答案：C

第8题：

While troubleshooting a network connectivity problem, a Ezonexam technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the 7-layer OSI model does the problem most likely exist?

A. The data link layer

B. The application layer

C. The protocol layer

D. The access layer

E. The session layer

F. The network layer

G. None of the above


正确答案：F
F

第9题：

Refer to the exhibit. Routers RTA and RTB are running BGP but the session is active. What command needs to be added to esta blish the BGP session? ()

A. ip route 10.10.10.1 255.255.255.255 s0/0 ip route 10.10.10.1 255.255.255.255 s0/1

B. network 10.10.10.0

C. no synchronization

D. neighbor 10.10.10.1 next - hop - self


参考答案：A

第10题：

Refer to the exhibit. Which recommended practice is applicable?()

A. If no core layer is deployed, the design will be easier to scale.

B. If no core layer is deployed, there will be fewer cabling requirements.

C. If no core layer is deployed, the distribution switches should not be fully meshed.

D. A dedicated campus core layer is not needed for connecting fewer than five buildings.

E. A dedicated campus core layer should be deployed for connecting three or more buildings.


参考答案：E

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