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In Frame Relay， FECN messages indicating congestion are sent

题目
单选题
In Frame Relay， FECN messages indicating congestion are sent or received by which of following？（）
A

Sent by the destination

B

Received by the sender

C

Received by the destination

D

Sent by the sender

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相似问题和答案

第1题：

Which command is required for connectivity in a Frame Relay network if Inverse ARP is not operational? ()

A. frame-relay arp

B. frame-relay map

C. frame-relay interface-dlci

D. frame-relay lmi-type


参考答案：B

第2题：

Users have been complaining that their Frame Relay connection to the corporate site is very slow. The network administrator suspects that the link is overloaded. Based on the partial output of the Router show frame relay pvc command shown in the graphic, which output value indicates to the local router that traffic sent to the corporate site is experiencing congestion?（）

A. DLCI = 100

B. last time PVC status changed 00:25:40

C. in BECN packets 192

D. in FECN packets 147

E. in DE packets 0


参考答案：C

第3题：

Which CLI command displays FECN and BECN information on a Frame Relay interface configured on serial interface 4／0:3／1 ?()

A.A

B.B

C.C

D.D


参考答案：A

第4题：

In Frame Relay， FECN messages indicating congestion are sent or received by which of following？（）

  • A、Sent by the destination
  • B、Received by the sender
  • C、Received by the destination
  • D、Sent by the sender

正确答案:C

第5题：

which command allows you to verify the encapsulation type (CISCO OR IETF) for a frame relay link?()

A.show frame-relay map

B.show frame-relay lmi

C.show inter serial

D.show frame-relay pvc


参考答案：C

第6题：

A new frame－relay network is being implemented and inverse ARP does not appear to be operating correctly. Which alternative command can be used to provide connectivity?()

A. frame-relay arp

B. frame-relay map

C. frame-relay interface-dlci

D. frame-relay lmi-type

E. frame-relay pvc


参考答案：B

第7题：

What two statistics appear in show frame－relay map output?()

A. The number of FECN packets that are received by the router

B. The number of BECN packets that are received by the router

C. The ip address of the local router

D. The value of the local DLCI

E. The status of the PVC that is configured on the router


参考答案：D, E

第8题：

查看帧中继PVC路由表的命令是（ ） A、 show frame-relay pvc B、 show frame-relay route C、 show frame-relay pvc route D、 show rame-relay map


正确答案：

 

 

第9题：

Which command can be used to verify the DLCI destination address in a Frame Relay static configuration?()

A.show frame-relay end-to-end

B.show frame-relay map

C.show frame-relay lmi

D.show frame-relay pvc


参考答案：B

第10题：

Which statement about Frame Relay is not true？（）

  • A、Static mapping is used when the remote router does not support Inverse ARP.
  • B、Frame Relay Inverse ARP requires LMI capability to construct an address to the DLCI mapping tableon the router.
  • C、Frame Relay Inverse ARP is disabled by default in Cisco IOS Software for all protocols that areenabled on the physical interface.
  • D、Inverse ARP does not work when LMI is disabled.
  • E、Frame Relay provides forward and backward congestion notification messages

正确答案:C

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