As shown in the figure, EBGP runs between AS100, AS200, AS300, and AS400.
When AS400 receives BGP routes from AS100, the path sequence recorded in its AS-Path attribute is ______.

• A.(400, 300.200, 100)
• B.(100, 200, 300, 400)
• C.(300, 200, 100)
• D.(100, 200, 300)

Comment: *

Name: *

Email: *

Verification: *

When the interface neighbor relationship verification is configured in IS-IS, the IS-IS message type to be verified is _________.

• A.PSNP
• B.CSNP
• C.Hello
• D.LSP

Comment: *

Name: *

Email: *

Verification: *

Which of the following statements about PBR is correct is _________

• A.PBR is a mechanism for routing selection based on user-defined strategies
• B.PBR can perform routing based on the source address of the arriving message
• C.Through PBR, you can set the routing attributes imported by the routing protocol
• D.PBR cannot perform routing based on the length of the arriving message

Comment: *

Name: *

Email: *

Verification: *

In the OSPF protocol, the types of LSAs that ASBRs cannot aggregate are _______

• A.Tpe7 LSA
• B.Tpe5 LSA
• C.Tpe3 LSA
• D.Tpe4 LSA

Comment: *

Name: *

Email: *

Verification: *

In the IS-IS network as shown in the figure, after the routing of each router is stable, the IS-IS Level-1 routing in the IS-IS LSDB of RTE has ______.

• A.10.3.4.0/30
• B.10.1.4.0/30
• C.10.4.5.0/30
• D.10.1.5.0/30

Comment: *

Name: *

Email: *

Verification: *