單項選擇題How long will a port remain in the listening state by default?()

A.Depends on the number of switches in the spanning tree domain
B.50 seconds
C.15 seconds
D.Until the root directs it to start forwarding
E.20 seconds
F.Depends on the pott speed


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1.多項選擇題Which of the following commands can be used to gather information about the AS-PATH of a BGProute? (Choose all that apply.)()

A.show ip bgp neighbors
B.debug ip bgp updates
C.show ip route bgp
D.show ip bgp
E.show ip bgp summary
F.sh ip bgp database

2.單項選擇題Which of the following is an accurate description of the command copy startup-configftp://kevin:cisco@192.168.1.74?()

A.The configuration on the FTP server is copied to RAM
B.The command is not valid on a Cisco router
C.The configuration file in RAM is copied to an FTP server
D.The configuration file in NVRAM is copied to an FTP server
E.The configuration on the FTP server is copied to NVRAM
F.The configuration will be copied from NVRAM to an FTP server with a filename of Kevin

3.單項選擇題Given the multicast IP address of 224.193.5.10, what would the corresponding multicast MACaddress be?()

A.00-00-0c-c0-05-0a
B.00-00-0c-cl-05-0a
C.01-00-5e-00-00-0c
D.01-00-5e-41-05-0a
E.00-00-0c-01-00-5e
F.01-00-5e-cl-05-0a

4.多項選擇題Which of the following are shared distribution tree characteristics? (Choose all that apply.)()

A.Memory requirements are higher for shared distribution tree than for source distribution tree
B.Creates a tree from a central RP to all last-hop routers
C.Uses a rendezvous point
D.An optimal path is created between each source router and each last-hop router
E.Place (S,G) entry in each router’s multicast routing table
F.Place (*,G) entry in a router’s multicast routing to table

5.多項選擇題Which of the following are valid methods of providing a router with information concerning thelocation of the RP? (Choose all that apply.)()

A.Statically defined RP
B.Bootstrap Router
C.Auto-RP
D.RP Discovery Protocol (RDP)
E.RP Helios
F.RPARP(RARP)

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