CCIE系列认证

单选题Which statement about MPLS TE Fast Reroute (FRR) link protection operation is not true?()A It requires a next-hop backup tunnel.B The backup tunnel terminates on the same tail-end router as the primary tunnel.C The point of local repair (PLR) swaps the

题目
单选题
Which statement about MPLS TE Fast Reroute (FRR) link protection operation is not true?()
A

It requires a next-hop backup tunnel.

B

The backup tunnel terminates on the same tail-end router as the primary tunnel.

C

The point of local repair (PLR) swaps the label and pushes the backup label.

D

The restoration time is expected to be under 50 ms.

E

The backup tunnel can have associated bandwidth capacity

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相似问题和答案

第1题:

Which CLI command is used to enable MPLS Fast Reroute on a ingress router?()

A. mpls fast reroute

B. mpls fast-reroute

C. enable mpls fast-reroute

D. tunnel mpls fast-reroute


参考答案:D

第2题:

VRP5版本支持的FRR技术有哪些?()

A.IP FRR

B.LDP FRR

C.MPLS TE FRR

D.VPN FRR


参考答案:A, B, C, D

第3题:

With MPLS Fast Reroute, what is the "point of local repair"?()

A. egress router

B. ingress router

C. start of the bypass tunnel

D. all routers in the bypass tunnel


参考答案:C

第4题:

Which statement about ATM AAL5 over MPLS is true?()

  • A、It supports ATM signaling.
  • B、It supports traffic shaping of packets in MPLS to the ATM path.
  • C、It supports ATM switched virtual circuits
  • D、It supports fragmentation and reassembly.
  • E、It supports AAL5 SDU switching

正确答案:E

第5题:

Which three statements about the Cisco MPLS TE Fast Reroute (FRR) process are true?()

  • A、TE tunnels that are configured with the FRR option cannot be used as backup tunnels.
  • B、TE tunnels that are configured with the FRR option can be used as backup tunnels.
  • C、The backup tunnel that is used to protect a physical interface must have a valid IP address configured.
  • D、Interfaces must use MPLS global label allocation.
  • E、The source IP address of use backup tunnel and the merge point (MP) should not be reachable.

正确答案:A,C,D

第6题:

MPLS TE Hot-standby可以对整个TE隧道做端到端的保护,而TE FRR只能做局部的保护,因此Hot-standby技术更先进()。

A.错误

B.正确


参考答案:A

第7题:

关于IP专网目前采用的快速收敛技术,下面的描述哪些是正确的?

A.全网采用MPLS TE FRR技术

B.核心层采用MPLS TE FRR技术

C.全网开启IGP快速收敛技术

D.核心层开启IGP快速收敛技术


参考答案:B,C

第8题:

What is true about a Bypass Tunnel in MPLS Fast Reroute?()

A. Only configured on the egress router

B. Only configured on the ingress router

C. Is pre-signalled to reduce packet loss

D. Must intersect the primary LSP at two locations


参考答案:D

第9题:

Which of the following technologies can improve convergence time following a link failure in a serviceprovider network?()

  • A、MPLS TE FR
  • B、MPLS VPN
  • C、BFD
  • D、RSVP
  • E、VPLS
  • F、SNMP

正确答案:C

第10题:

Which CLI command is used to enable MPLS Fast Reroute on a ingress router?()

  • A、mpls fast reroute
  • B、mpls fast-reroute
  • C、enable mpls fast-reroute
  • D、tunnel mpls fast-reroute

正确答案:D

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