The OSPFv3 protocol is a separately developed protocol. It differs from OSPFv2 in that OSPFv3 is based on links rather than network segments. Which of the following statement is incorrect?

• A.The routing information obtained by the OSPFv3 router from the neighbor uses the link-local address of the neighbor as the next hop of the forwarded packet.
• B.The two routers connected to the link can establish neighbor relationships even if no unicast IPv6 address is configured.
• C.All OSPFv3 interfaces use the Link-local address as the destination address of the packet except the virtual link.
• D.The two routers connected to the link can establish neighbor relationships even if their IPv6 address prefixes are different.

Comment: *

Name: *

Email: *

Verification: *

Which of the following statement about the LSA of OSPFv3 3 is correct? (Multiple choice)

• A.Router-LSA and Network-LSA do not contain routing information.
• B.Inter-Area-Prefix LSA also contains Link-Local information
• C.When the Intra-Area Prefix LSA has the Referenced Link State Type-2, the Referenced Link State id contains the interface id of the DR.
• D.The Link State id of the Inter-Area Prefix-LSA contains the prefix information.

Comment: *

Name: *

Email: *

Verification: *

Two routers are connected through the serial port, but the interconnection interface cannot be pinged. Now check the port status as follows, which is the possible reason?  (No figure is shown, one PPP, and one HDLC, you can find the reason.)

• A.Link layer protocol is inconsistent
• B.Link bandwidth is not enough
• C.Subnet mask does not match
• D.The IP address is not on the same network segment.

Comment: *

Name: *

Email: *

Verification: *

Which of the following description about the related information of BGP4+ is correct? (Multiple choice)

• A.Bgp4+ can use the dampening command to suppress IBGP routes.
• B.BGP4+ does not support automatic route aggregation.
• C.The Next Hop attribute in BCP4+ is represented by the Pv6 address, which can be the link-local address of the next hop.
• D.Modifying the Router ID of the BCP will cause the BGP connection between the routers to be re-established.

Comment: *

Name: *

Email: *

Verification: *

Regarding the way the device handles packets in the MPLS network model, which of the following descriptions are wrong? (Multiple Choice)

• A.LSR must not strip labels.
• B.The device discards the IP packets that enter the MPLS domain.
• C.Both LER and LSR will carry out label distribution.
• D.The label forwarding path LSP is determined and established through various protocols during the forwarding of the message.

Comment: *

Name: *

Email: *

Verification: *