單項選擇題The network administrator is in a campus building distant from Building B. WANRouter is hosting a newly installed WAN link on interface S0/0. The new link is not functioning and the administrator needs to determine if the correct cable has been attached to the S0/0 interface. How can the administrator accurately verify the correct cable type on S0/0 in the most efficient manner（）。

A.Telnet to WANRouter and execute the command show interfaces S0/0
B.Telnet to WANRouter and execute the command show processes S0/0
C.Telnet to WANRouter and execute the command show running-configuration
D.Telnet to WANRouter and execute the command show controller S0/0
E.Physically examine the cable between WANRouter S0/0 and the DCE
F.Establish a console session on WANRouter and execute the command show interfaces S0/0


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Refer to the topology shown in the exhibit. Which ports will be STP designated ports if all the links are operating at the same bandwidth? （）

A.Switch A - Fa0/0
B.Switch A - Fa0/1
C.Switch B - Fa0/0
D.Switch B - Fa0/1
E.Switch C - Fa0/0
F.Switch C - Fa0/1

2.多項選擇題What are three valid reasons to assign ports to VLANs on a switch? （）

A.to make VTP easier to implement
B.to isolate broadcast traffic
C.to increase the size of the collision domain
D.to allow more devices to connect to the network
E.to logically group hosts according to function
F.to increase network security

4.單項選擇題How many collision domains are shown（）。

A.one
B.two
C.three
D.four
E.six
F.fourteen

5.單項選擇題

The Frame Relay network in the diagram is not functioning properly.What is the cause of the problem？（）

A.The Gallant router has the wrong LM Itype configured
B.Inverse ARP is providing the wrong PVC information to the Gallant router
C.The S3 interface ofthe Steele router has been configured with the frame-relay encapsulation ietf command
D.The frame-relay map statement in the Attalla router for the PVC to Steele is not correct
E.The IP address on the serial interface of the Attalla router is configured incorrectly

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