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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2.單項選擇題A router receives information about network 192.168.10.0/24 from multiple sources.What will the router consider 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 B.a static router to network 192.168.10.0/24 with a local serial interface configured as the next hop
C.a RIP update for network 192.168.10.0/24
D.a directly connected interface with an address of 192.168.10.254/24
E.a default route with a next hop address of 192.168.10.1

3.多項選擇題Which commands are required to properly configure a router to run OSPF and to add network 192.168.16.0/24 to OSPF area 0?（）

A.Router(config)#router ospf 1
B.Router(config)#router ospf 0
C.Router(config)#router ospf area 0
D.Router(config-router)#network 192.168.16.0 0.0.0.255 area 0
E.Router(config-router)#network 192.168.16.0 0.0.0.255 0
F.Router(config-router)#network 192.168.16.0 255.255.255.0 area 0

4.多項選擇題Which three elements must be used when you configure a router interface for vlan trunking?（）

A.one IP network or subnetwork for each subinterface
B.subinterface numbering that matches vlan tages
C.subinterface encapsulation identifiers that match vlan tags
D.a management domain for each subinterface
E.one physical interface for each subinterface
F.one subinterface per vlan

5.多項選擇題Refer to the exhibit. For what two reasons has the router loaded its IOS image from the location that is shown? （）

A.Router1 has specific boot system command that instruct it to load IOS from TFTP server.
B.Router1 is acting as a TFTP server for other routers.
C.Router1 cannot locate a valid IOS image in flash memory.
D.Router1 defaulted to ROMMON mode and loaded the IOS image from a TFTP server.
E.Cisco routers will first attempt to load a image from TFTP for management purposes.