Which IPv6 header field has a function similar to that of the “Type of Service” field in an IPv4 header?
Answer(s): B
Besides an IPv4 address, a router distinguisher (RD) also contains an identifier that distinguishes IP routes to the same destination IP address in different VPNs. How many bits are there in the identifier?
Which of the following statements about penultimate hop popping are true?
Answer(s): B,D,E
Based on the routing information exchange mode, MPLS VPNs are usually classified into two types. One is the overlay VPN. What is the other type of MPLS VPN?
Answer(s): D
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