The following about the Router-LSA of OSPFv3 is correct?( Single choice questions).

• A.The router-LSA data area contains the Link-Local address
• B.Similar to OSPFv2, the Option field exists in the header of LSA, not in the data area of Router-LSA
• C.The router-LSA data area contains the Interface ID of the neighbor on this side
• D.When LS type= Ox0001 in the head of LSA, the data area representing LSA is Router-LSA

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Router HW enables OSPF and router HW has the role of ABR and is configured with abr-summary, then which class LSA Will it be aggregated?

• A.1 Class LSA
• B.3 kind LSA
• C.5 Class LSA
• D.2 kind LSA
• E.4 kind LSA

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?BGP4+?,Update ????M IP_R EACH_NLRI ?????next hop network address ????? ?

• A.You can carry a link-local address and a global unicast address
• B.at the same time Can only be a global unicast address
• C.It can be just link-local address
• D.Can only be a link-local address

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How do.8021w and 8021D handle BPDUs?( Single choice questions).

• A.8021D bridges do not forward BPDU packets
• B.The 8021w bridge only forwards BPDU packets received from the root bridge
• C.The 8021D bridge only forwards BPDU packets received from the root bridge
• D.8021w Bridge does not forward BPDU packets

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During isis ' broadcast network database synchronization, is the following statement correct?

• A.R2, as DIS, sends CSNP periodically.
• B.R2 as DIS does not receive PSNP nouns for other routes.
• C.R2 As DIS, Hello time is 3 times that of a normal router.
• D.RI and R3 maintain database consistency by periodically sending PSNP requests.

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