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多选题What are two functions associated with JUNOS software class of service?（）AManage ingress bandwidth.BMark packets for special handling.CManage congestion by intelligently dropping traffic.DClassify Frame Relay QoS packets into an equivalent IP CoS envir

题目
多选题
What are two functions associated with JUNOS software class of service?（）
A

Manage ingress bandwidth.

B

Mark packets for special handling.

C

Manage congestion by intelligently dropping traffic.

D

Classify Frame Relay QoS packets into an equivalent IP CoS environment.

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相似问题和答案

第1题：

Which JUNOS software feature allows a user to define specific next－hop values for IP packets based on the source IP address of that packet?()

A. MPLS

B. Load Balancing

C. Class Based Forwarding

D. Filter Based Forwarding


参考答案：D

第2题：

What is the result of issuing the frame－relay map ip 192.168.1.2 202 broadcast command?()

A. defines the source IP address that i s used in all broadcast packets on DLCI 202

B. defines the DLCI that is used for all packets that are sent to the 192.168.1.2 IP address

C. defines the destination IP address that is used in all broadcast packets on DLCI 202

D. defines the DLCI on which packets from the 192.168.1.2 IP address are received


参考答案：B

第3题：

What are two functions associated with JUNOS software class of service?()

A. Manage ingress bandwidth.

B. Mark packets for special handling.

C. Manage congestion by intelligently dropping traffic.

D. Classify Frame Relay QoS packets into an equivalent IP CoS environment.


参考答案：B, C

第4题：

What are two benefits of control plane policing？（）

  • A、protection against denial of service （DoS） attacks at infrastructure routers and switches
  • B、 protection against known worm attacks in routers and switches
  • C、quality of service （QoS） control for packets that are sourced from the data plane of Cisco routers and switches
  • D、quality of service control （QoS） for packets that are destined to the control plane of Cisco routers and switches
  • E、quality of service （QoS） control for packets that are destined to the data plane of Cisco routers and switches

正确答案:A,D

第5题：

You are working with a client to deploy QoS on their Frame Relay WAN. They would like to be able to allow packets to cross the Frame Relay WAN but have them marked as discard eligible if they exceed the QoS policy. How would you accomplish this task?（）

  • A、Configure a class map that sets the DE bit so that the policy map can correctly apply a violate-action if the policy is exceeded.
  • B、Configure a service policy that sets the DE bit and apply it to the serial interface connected to the Frame Relay WAN.
  • C、Configure a policy map that has a burst-max action of setting the DE bit if the policy is exceeded.
  • D、Configure a policy map that has a violate-action to change the DE bit from 0 to 1.

正确答案:D

第6题：

What are three functions associated with JUNOS software class of service?()

A. Log incoming traffic.

B. Classify incoming packets.

C. Manage outbound bandwidth.

D. Manage congestion by intelligently dropping traffic.

E. Classify ATM QoS packets into an equivalent IP CoS environment.


参考答案：B, C, D

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：

In JUNOS software, unclassified packets are associated with which forwarding class?()

A. network control

B. best effort

C. assured forwarding

D. expedited forwarding


参考答案：B

第9题：

Which two QoS classification and marking statements are true？（）

  • A、 In a Frame Relay network， delay sensitive traffic is tagged with the discard eligible （DE） bit.
  • B、 In an MPLS network， the three most significant bits of the DSCP or the IP precedence of the IP packet are copied into the MPLS EXP field
  • C、 In an MPLS network， the MPLS EXP bits are used to identify up to 16 CoS values.
  • D、 The differentiated services code point （DSCP） field consists of the first three bits of the IP precedence field in the header of an IP packet.
  • E、 The 802.10 standard uses a three bitfield referred to as the user priority bits （PRI） to mark packets as belonging to a specific CoS.

正确答案:B,E

第10题：

What is required to enable fragmentation of large FTP packets when voice quality on the network is affected by FTP transfers?（）

  • A、Configure TCP header compression on interface
  • B、Configure MPL on the Frame Relay interfaces
  • C、Configure FRF 12 fragmentation on the Frame Relay interfaces
  • D、Fragmentation is not supported with service internetworking

正确答案:B

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