Huawei
H31-161 · Question #50
H31-161 Question #50: Real Exam Question with Answer & Explanation
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Question
As shown in the figure, the DiffServ model is deployed in E-LSP mode on the MPLS network. A tester connects to GE interfaces of RTA and RTC on the edge of the MPLS network through GE links. The trust upstream default command is configured for interfaces on the IP access side of RTA and RTC. When the tester sends IP packets with DSCP values 10, 12, and 14,the DSCP values of IP packets received at the receiver side are supposed to remain unchanged. However, the DSCP values of all received IP packets are 10. In this case, which of the following statements are true? (Default mapping is configured between the EXP and DSCP values on each router.)
Exhibit
Options
- AThe DSCP values are 10 when RTA's IP packets leave the MPLS network because the EXP
- BThe configurations on RTA or RTC are incorrect.
- CIf the qos phb disable command is configured for the outbound interface on the IP access side of
- DThe DSCP values of packets the tester receives are 10 regardless of whether qos phb disable is
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