PHB（per-Hop Behavior）是DS结点作用于数据流的行为，每个DS结点必须支持缺省PHB

更多“PHB（per-Hop Behavior）是DS结点作用于数据流的行为，每个DS结点必须支持缺省PHB”相关的问题

第1题

[] With the DSCP value fo "101110"， what does the "11" in bits 1 and 2 indicate ？（）

A、A.AF Class B、B.Drop Probability C、C.CS（Class Selector Value ） D、D.PHB （Per-Hop Behavior ） E、E.IP Precedence F、F.Queue Depth

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第2题

[单选题] Which QoS model manages the QoS requirements for the network on a per-hop behavior （PHB） basis？（）

A、best-effort delivery B、ingress committed rate （ICR） C、shaping and policing D、egress committed rate （ECR） E、Integrated Services （IntServ） F、differentiated services （DiffServ）

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第3题

[单选题] On the basis of the definitions of different services in various RFCs， traffic with Expedited Forwarding per-hop behavior should be marked as which of these？（）

A、IP ToS of 0xEF B、IP experimental ECN C、DSCP decimal 5 D、Binary value of 101110

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第4题

[] On the basis of the definitions of different services in various RFCs，traffic with Expedited Forwarding per-hop behavior should be marked as which of these？（）

A、A.IP ToS of 0xEF B、B.IP experimental ECN C、C.DSCP decimal 5 D、D.Binary value of 101110

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第5题

[多选题] 以下关于Qos中的DSCP说法正确的是（）

A、用TOS字段的前6个比特（高6比特）来表示不同的业务类型，称为DSCP B、可以使用DSCP将流量分成32类 C、每个DSCP值对应一个BA（Behavior AggregatE.，然后可以对每一个BA指定一种PHB D、可以使用某些Qos机制；来实现这个PHB

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第6题

[单选题] Which of these is a valid differentiated services PHB？（）

A、Guaranteed PHB B、Class-Selector PHB C、Reserved Forwarding PHB D、Discard Eligible PHB E、Priority PHB

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第7题

[单选题] Which of the following events can NOT be tuned via router configuration to provide for faster convergencefollowing a link failure？（）

A、Failure detection B、Failure reporting C、IGP LSP/LSA originatio D、Per-hop flooding time of new link state E、Number of hops that need to be notified of new link state

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第8题

[单选题] Which configuration parameter on a Junos device alters the default next-hop resolution behavior of a static route?（）

A、no-readvertise B、resolve C、preference D、passive

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第9题

[单选题] Observe the diagram. RTC is the hub router and RTA and RTB are the spokes. There are no virtual circuits between the spoke locations. What is needed to successfully route traffic to the 11.11.11.0/24 network from RTA? （）

A、The neighbor 10.10.10.1 next - hop - self com mand on RTA B、Nothing is required. This is the default behavior on this topology C、The neighbor 10.10.10.1 next - hop - self command on RTB D、The neighbor 10.10.10.1 next - hop - self command on RTC

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