If the router only needs to forward IPv6, IPv4 packets, then there is no need to configure any of these and address protocols on the router.

• A.True
• B.False

Comment: *

Name: *

Email: *

Verification: *

In the figure, the first record shown in LSP in the LSDP of a router, and the second record shown a newly received LSP, Which of the following statements is false?

• A.The router adds the newly received L5P to the LSDB.
• B.The router will ignore the LSPs received from neighbors.
• C.The router sends PSNPs if it is a point-to-point network.
• D.If it is a broadcast network, the DIS adds the summary information of the newly received LSP to the next CSNP.

Comment: *

Name: *

Email: *

Verification: *

A Local Area Network Denial (LAND) attacker sends a SYN packet in which the source and destination addresses are the same as the target host's address and the source port is the same as the destination port.
While the receiver waits for the final ACK packet from the sender, the connection is in half-connected mode, which wastes limited TCP resources at the receive end.

• A.TRUE
• B.FALSE

Comment: *

Name: *

Email: *

Verification: *

Which of the following statements regarding deploying IS-IS in an IPv6 environment is true?

• A.On a broadcast network, if each router supports both IPv4 and IPv6, the IPv4 DIS and IPv6 DIS must be the same device.
• B.On a broadcast network, the IPv4 DIS priority and IPv6 DIS priority can be set, respectively.
• C.By default, the DIS priority of Level-1 and Level-2 broadcast interfaces is 1.
• D.If the isis silent command is run on an IS-IS interface, the interface does not send but receives IS-IS packets.

Comment: *

Name: *

Email: *

Verification: *

To allow routers on the two ends of an IPv6 over IPv4 manual tunnel to exchange routing information, you can enable OSPFv3 on the tunnel. Neighbor relationships then can be generated normally and tunnel interfaces can function as P2P link interfaces.

• A.FALSE
• B.TRUE

Comment: *

Name: *

Email: *

Verification: *