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單項選擇題Given an IP address 172.16.28.252 with a subnet mask of 255.255.240.0， what is the correct networkaddres？（）

A.172.16.16.0
B.176.24.0.0
C.172.16.0.0
D.172.16.28.0

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1.單項選擇題What is the name of the VTP mode of operation that enables a switch to forward only VTPadvertisements while still permitting the editing of local VLAN information?（）

A.server
B.client
C.tunnel
D.transparent

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2.單項選擇題Which command can be arouter to verify the layer 3 path to a host?（）

A.traceroute address
B.tracert address
C.ssh address
D.telnet address

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3.單項選擇題Which of the following is true regarding the use of switches and hubs for network connectivity（）。

A.Switches take less time to process frames than hubs take.
B.Switches do not forward broadcasts.
C.Hubs can filter frames.
D.Using hubs can increase the amount of bandwidth available to hosts.
E.Switches increase the number of collision domains in the network.

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4.單項選擇題Which command will show the MAC addresses of stations connected to switch ports?（）

A.show mac-address
B.show arp
C.show table
D.show switchport

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5.多項選擇題 Refer to the exhibit.The network administrator requires easy configuration options and minimal routingprotocol traffic.Which two options provide adequate routing table information for traffic that passes betweenthe two routers and satisfy the requests of the network administrator？（）

A.a dynamic routing procotol on InternetRouter to advertise summarized routers to CentralRouter.
B.a dynamic routing procotol on CentralRouter to advertise summarized routers to InternetRouter.
C.a static route on InternetRouter to direct traffic that is destined for 172.16.0.0/16 to CentralRouter.
D.a dynamic routing procotol on InternetRouter to advertise all routes to CentralRouer.
E.a dynamic routing procotol on CentralRouer to advertise all routes to InternetRouter
F.a static，default route on CentralRouter that directs traffic to InternetRouter.

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