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單項(xiàng)選擇題Which command shows your active Telnet connections?（）

A.show session
B.show cdp neighbors
C.show users
D.show queue

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1.多項(xiàng)選擇題Which two statements describe the advantages to the use of RIP over the use of OSPF？（）

A.RIP requires less time to converge
B.RIP uses less bandwidth
C.RIP is less complex to configure
D.RIP demands fewer router resources
E.RIP has a more accurate metric

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2.單項(xiàng)選擇題Which commands is necessary to permit SSH or Telnet access to a cisco switch that is otherwise configured for these vty line protocols?（）

A.transport type all
B.transport output all
C.transport preferred all
D.transport input all

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3.單項(xiàng)選擇題On the network 131.1.123.0/27, what is the last IP address that can be assigned to a host?（）

A.131.1.123.30
B.131.1.123.31
C.131.1.123.32
D.131.1.123.33

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4.單項(xiàng)選擇題What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table（）。

A.The switch will not forward unicast frames.
B.The switch will forward the frame to a specific port.
C.The switch will return a copy of the frame out the source port.
D.The switch will remove the destination MAC from the switch table.
E.The switch will forward the frame to all ports except the port on which it was received.

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5.多項(xiàng)選擇題Which two protocols are used by bridges and/or switches to prevent loops in a layer 2 network? （）

A.802.1d
B.VTP
C.802.1q
D.STP
E.SAP

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