Online Access Free H12-891_V1.0 Exam Questions

Based on the configuration in the following figure, how many interfaces on R4 are advertised into IS-IS?
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<R4>display isis interface
Interface information for ISIS(1)
Interface Id IPV4.State IPV6.State MTU Type DIS
GE0/0/0 001 Up Down 1497 L1/L2 No/No
GE0/0/1 002 Up Down 1497 L1/L2 No/No
Loop0 001 Up Down 1500 L1/L2 -

• A.2
• B.3
• C.0
• D.1

In OSPFv3, which of the following types of LSAs can be flooded in the entire AS?

• A.Inter-Area-Prefix-LSA
• B.Link-LSA
• C.Intra-Area-Prefix-LSA
• D.AS-external-LSA

On a router, SRv6 is enabled, and the configurations shown below are performed. Which of the following statements about the configurations are correct?
[Router-segment-routing-ipv6] locator srv6_locator1 ipv6-prefix 2001:DB8:ABCD::/64 static 32

• A.The locator of this node is 2001:DB8:ABCD::.
• B.The dynamic segment of the node occupies 32 bits.
• C.The Args field of this node occupies 32 bits.
• D.The static segment of the node occupies 32 bits.

Which of the following statements is incorrect about Authentication Header (AH)?

• A.AH provides packet encryption.
• B.AH provides data origin authentication.
• C.AH provides data integrity authentication.
• D.AH provides anti-replay protection.

In the following figure, R1, R2, R3, and R4 all belong to OSPF area 0. The link costs are marked in the figure. The Loopback0 addresses of R1, R2, R3, and R4 are advertised to OSPF. R1, R2, and R3, which are R4 clients, use Loopback0 to establish an iBGP peer relationship with R4. The directly connected network segment 172.20.1.4/32 of R4 is advertised to BGP. Which of the following statements are correct about the direction of traffic from R1 to 172.20.1.4/32?

• A.The preferred path is R1-R2-R4.
• B.The preferred path is R1-R3-R4.
• C.If the stub router on-startup command is run on R3, packet loss occurs during the power-off process of R3 but no packet loss occurs during the startup process of R3.
• D.Packet loss occurs during both the power-off and startup processes of R3.