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单选题How is an RSVP resv message sent back to the ingress router？（）A  reverse path of the RROB  least cost to the ingress routerC  shortest path to the egress routerD  reverse path of the path vector TLV

题目
单选题
How is an RSVP resv message sent back to the ingress router？（）
A

 reverse path of the RRO

B

 least cost to the ingress router

C

 shortest path to the egress router

D

 reverse path of the path vector TLV

参考答案和解析
正确答案： C
解析： 暂无解析
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相似问题和答案

第1题：

Given the following LSP configuration, which statement is true? ()

A. The router will use path1 when it is available and stable.

B. The router will use path3 when it is available and stable.

C. The router will attempt to establish path2 only when path1 and path3 are down.

D. The router will attempt to establish path1 only when path2 and path3 are down.


参考答案：A

第2题：

在组播网络中RPF代表什么?()。

A.Reverse protocol forwarding

B.Reverse protocol flooding

C.Reverse path forwarding

D.Reverse path flooding


参考答案：C

第3题：

How is an RSVP resv message sent back to the ingress router?()

A. reverse path of the RRO

B. least cost to the ingress router

C. shortest path to the egress router

D. reverse path of the path vector TLV


参考答案：A

第4题：

For a router connected to two ISPs for redundancy， using IPSLA and static routing， how would youconfigure uRPF on the uplink interface？（）

  • A、ip verify unicast source reachable-via any
  • B、ip verify unicast reverse-path
  • C、ip verify unicast reverse-path loose
  • D、ip verify unicast reverse-path strict

正确答案:A

第5题：

what is RPF（ Reverse Path Forwarding ）？


正确答案:Forwarding multicast traffic away from the source， rather than to the receiver， is called Reverse Path Forwarding （RPF）. This RPF check helps to guarantee that the distribution tree will be loop-free.

第6题：

Refer to the exhibit. Which two conclusions can be drawn from the debug ip igmp output?()

A. The router sent an IGMP version 2 query out interface Ethernet1 at multicast address 224.0.0.1.

B. Router RTA received an IGMP report version 1 from host 192.168.9.1.

C. Reverse Path Forwarding (RPF) is ena bled for 192.168.9.4.

D. Reverse Path Forwarding (RPF) is enabled for 224.0.1.40.

E. The IP multicast groups are 224.0.0.1, 224.0.1.40, and 239.255.0.1.

F. IP PIM RP mapping is static.


参考答案：A, B

第7题：

Which two statements about spanning tree path cost are true？（）

  • A、The path cost can be changed for an interface using the spanning-tree cost command
  • B、The path cost can be changed for an interface using the stp path-cost command
  • C、The SPT default path cost depends on the interface speed
  • D、The STP default path cost is similar for all interface

正确答案:A,C

第8题：

What is the term "ordered control" mean regarding how MPLS LSPs are established?()

A. establish starting at the egress router going back to the ingress router

B. establish starting at the ingress router going downstream to the egress router

C. establish when a router learns of a new prefix

D. establish when the path correctly matches the reverse path forwarding check


参考答案：A

第9题：

Which router or router combination is used to calculate the MPLS traffic engineering tunnel path？（）

  • A、head-end router and tail-end router
  • B、middle-point router
  • C、head-end router
  • D、tart-end router
  • E、tail-end router

正确答案:C

第10题：

How is an RSVP resv message sent back to the ingress router?（）

  • A、reverse path of the RRO
  • B、least cost to the ingress router
  • C、shortest path to the egress router
  • D、reverse path of the path vector TLV

正确答案:A

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