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多項選擇題Which two statements are characteristics of a distance vector routing protocol?（）

A.RIP is an example of distance vector routing protocols
B.Updates are periodic and include the entire routing table
C.Routing updates are sent only after topology changes
D.The protocol can be useful in hub-and-spoke and hierarchical networks
E.Convergence is usually faster than with link state protocols
F.Each router has its own view of the topology

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1.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

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2.單項選擇題 請參見圖示，主機A ping接口S0/0的router3，什么是該ping的TTL值？（）

A. 253
B. 252
C. 255
D. 254

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3.單項選擇題Which command enhances the 802.1D convergence time on ports that are connected to hosts?（）

A.spanning-tree backbonefast
B.spanning-tree uplinkfast
C.spanning-tree portfast
D.spanning-tree cost512

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4.多項選擇題 Refer to the exhibit.The network shown in the diagram is experiencing connectivity problems. Which of the following will correct the problems？（）

A.Configure the gateway on Host A as 10.1.1.1.
B.Configure the gateway on Host B as 10.1.2.254.
C.Configure the IP address of Host A as 10.1.2.2.
D.Configure the IP address of Host B as 10.1.2.2.
E.Configure the masks on both hosts to be 255.255.255.224.
F.Configure the masks on both hosts to be 255.255.255.240.

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5.單項選擇題Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over FastEthernet?（）

A.802.3ad
B.802.1w
C.802.1Q
D.802.1d

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