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多选题Which two forwarding classes have bandwidth assigned when CoS is not explicitly configured in JUNOS software？（）ABest effort（BE）BNetwork control（NC）CAssured forwarding（AF）DExpedited forwarding（EF）

题目
多选题
Which two forwarding classes have bandwidth assigned when CoS is not explicitly configured in JUNOS software？（）
A

Best effort（BE）

B

Network control（NC）

C

Assured forwarding（AF）

D

Expedited forwarding（EF）

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相似问题和答案

第1题：

Which two design goals describe the Junos OS design?()

A. clean separation of security and routing policies

B. clean separation of control and forwarding planes

C. modularization of multiple software processes

D. a single hardware platform for all software applications


参考答案：B, C

第2题：

Which two statements about login classes correctly define their usage within the JUNOS software?()

A.A different login class must be configured for each user.

B.Individual commands can be explicitly allowed or denied.

C.A user must be assigned to one of the default login classes.

D.Each login class is associated with one or more permissions flags.


参考答案：B, D

第3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4题：

Which two statements describe the difference between JUNOS Software for securityplatforms and a traditional router？（）

  • A、JUNOS Software for security platforms supports NAT and PAT； a traditional router does not support NAT or PAT.
  • B、JUNOS Software for security platforms does not forward traffic by default； a traditional router forwards traffic by default.
  • C、JUNOS Software for security platforms uses session-based forwarding； a traditional router uses packet-based forwarding.
  • D、JUNOS Software for security platforms performs route lookup for every packet； a traditional router performs route lookup only for the first packet.

正确答案:B,C

第5题：

Which statement is true regarding the forwarding plane?（）

  • A、The forwarding plane is contained within the Routing Engine (RE)
  • B、The forwarding plane processes and evaluates exception traffic
  • C、The forwarding plane contains the Packet Forwarding Engine (PFE)
  • D、The forwarding plane is not present on all platforms running the Junos OS

正确答案:C

第6题：

Which two statements are true of the forwarding table?()

A.The forwarding table is stored in the control plane only.

B.The forwarding table contains both active and inactive routes.

C.The forwarding table is stored in the control plane and the forwarding plane.

D.The forwarding table uses a longest match lookup for forwarding decisions.


参考答案：C, D

第7题：

Which two design goals describe the Junos OS design?（）

  • A、clean separation of security and routing policies
  • B、clean separation of control and forwarding planes
  • C、modularization of multiple software processes
  • D、a single hardware platform for all software applications

正确答案:B,C

第8题：

Which two statements describe the forwarding table in the Junos OS?()

A. The forwarding table contains all known routes.

B. The forwarding table stores a subset of information from the routing table.

C. Junos devices use the forwarding table to compare incoming packets against existing entries to determine the next hop.

D. If multiple matches exist, the forwarding table uses the least-specific entry to forward packets toward the destination.


参考答案：B, C

第9题：

Which two statements are true regarding the role of the Routing Engine (RE)?（）

  • A、The RE controls and monitors the chassis.
  • B、The RE manages the Packet Forwarding Engine (PFE).
  • C、The RE receives a copy of the forwarding table from the forwarding plane.
  • D、The RE implements class of service (COS).

正确答案:A,B

第10题：

Which statement is true about the forwarding table?（）

  • A、The forwarding table is stored in the control plane only.
  • B、The forwarding table is stored in the control plane and in the forwarding plane.
  • C、The forwarding table contains both active and inactive routes.
  • D、The forwarding table can contain only a single next hop per destination.

正确答案:B

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