單項選擇題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

2.單項選擇題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

3.單項選擇題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

4.單項選擇題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.

6.單項選擇題A router receives information about network 192.168.10.0/24 from multiple sources.What will the routerconsider the most reliable information about the path to that network?()

A.an OSPF update for network 192.168.0.0/16
B.a static router to network 192.168.10.0/24
C.a static router to network 192.168.10.0/24 with a local serial interface configured as the next hop
D.a RIP update for network 192.168.10.0/24
E.a directly connected interface with an address of 192.168.10.254/24
F.a default route with a next hop address of 192.168.10.1

8.多項選擇題The network administrator of the Oregon router adds the following command to the router configuration: ip route 192.168.12.0 255.255.255.0 172.16.12.1. What are the results of adding this command (Choose two.)()。

A.The command establishes a static route.
B.The command invokes a dynamic routing protocol for 192.168.12.0.
C.Traffic for network 192.168.12.0 is forwarded to 172.16.12.1.
D.Traffic for all networks is forwarded to 172.16.12.1.
E.This route is automatically propagated throughout the entire network.
F.Trafficfor network 172.16.12.0 is forwarded to the 192.168.12.0 network.

10.多項選擇題Which two benefits are provided by creating VLANs? ()

A.added security
B.dedicated bandwidth
C.provides segmentation
D.allows switches to route traffic between subinterfaces
E.contains collisions

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