單項選擇題What is Phantom RP used for?()

A.it is used for load balancing in bidirectional PIM
B.it is used for redundancy in bidirectional PIM
C.it is used for redundancy in PIM-SM
D.it is used for load balancing in PIM-SM


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1.單項選擇題

Refer to the exhibit. Look at the command output. What can you use to prevent this behavior? ()

A. UDLD  (UniDirectional Link Detection)
B. spanning-tree loopguard
C. VTP mode transparent
D. switchport mode desirable

2.單項選擇題Which IGMPv2 message contains a non-zero "Max Response Time"?()

A.Membership Query
B.Membership Report
C.Membership Delay
D.Backward Compatible IGMPv1 Report Message

3.單項選擇題Apart from interdomain multicast routing, what else is MSDP used for?()

A.Source Specific Multicast and IGMPv2
B.Announcing multicast sources to BGP speakers
C.Anycast RP
D.Intradomain multicast routing

4.單項選擇題

Refer to the exhibit. Look at the command output. Assume that there is no other path, and the configuration is correct. What would be the consequences of this situation?()

 

A. Users in SW1 can ping SW2 but not vice versa.
B. Users in SW2 can ping SW1 but not vice versa.
C. Users in SW1 and SW2 can ping each other.
D. Users in SW1 and SW2 cannot ping each other.

5.單項選擇題How is RPF used in multicast routing?()

A.to prevent multicast packets from looping
B.to prevent PIM packets from looping
C.to instruct PIM where to send a (*, G) or (S, G) join message
D.to prevent multicast packets from looping and to instruct PIM where to send a (*, G) or (S, G) joinmessage

7.單項選擇題

Refer to the exhibit. Look at the command output. What would be the most probable reason for this port-ID mismatch?()

A. spanning-tree misconfiguration
B. speed mismatch configuration
C. cabling problem
D. configuration problem

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An expanding company is deploying leased lines between its main site and two remote sites. Thebandwidth of the leased lines is 128kb/s each,terminated on different serial interfaces on the main router.These links are used for combined VOIP and data traffic. The network administrator has implemented a VOIP solution to reduce costs,and has therefore reserved sufficient bandwidth in a low latency queue oneach interface for the VOIP traffic. Users now complain about bad voice quality although no drops areobserved in the low latency queue. What action will likely fix this problem?()

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