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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 802.1Q standard uses a three bit field referred to as the user priority bits （PRI） to mark packets as belonging to a specific CoS.
参考答案
更多 “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 802.1Q standard uses a three bit field referred to as the user priority bits （PRI） to mark packets as belonging to a specific CoS.” 相关考题
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What occurs on a Frame Relay network when the CIR is exceeded?()
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多选题Which two statements are true about trust boundaries？（）AClassifying and marking traffic should be done as close to the traffic source as possible.BClassifying and marking traffic should be done at the distribution layer.CTraffic is classified and marked as it travels through the network.DIf untrusted traffic enters a switch， it can be marked with a new QoS value appropriate for the policy in place.EThe trust boundary moves depending on the type of traffic entering the network.
考题
多选题Which two QoS classification and marking statements are true？ （）AIn a Frame Relay network， delay sensitive traffic is tagged with the discard eligible （DE） bit.BIn 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.CIn an MPLS network， the MPLS EXP bits are used to identify up to 16 CoS values.DThe differentiated services code point （DSCP） field consists of the first three bits of the IP precedence field in the header of an IP packet.EThe 802.1Q standard uses a three bit field referred to as the user priority bits （PRI） to mark packets as belonging to a specific CoS.
考题
多选题Which two QoS classification and marking statements are true？（）AIn a Frame Relay network， delay sensitive traffic is tagged with the discard eligible （DE） bit.BIn 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 fieldCIn an MPLS network， the MPLS EXP bits are used to identify up to 16 CoS values.DThe differentiated services code point （DSCP） field consists of the first three bits of the IP precedence field in the header of an IP packet.EThe 802.10 standard uses a three bitfield referred to as the user priority bits （PRI） to mark packets as belonging to a specific CoS.
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