Question 1

Which of the following configurations can enable connectivity between interfaces on R1 and R3? (Select all that apply)

Options :

A : [R1] ip route-static 20.1.1.0 24 10.0.0.2

B : [R1] ip route-static 20.1.1.0 24 20.1.1.2

C : [R3] ip route-static 10.0.0.0 24 20.1.1.2

D : [R3] ip route-static 10.0.0.0 24 20.1.1.1

Answer: A,D

Question 2

OSPF has five types of packets. Which type is used to notify an OSPF neighbor of its required LSAs?

Options :

A : DD

B : LSR

C : LSU

D : Hello

Answer: B

Question 3

With the continuous development of AI, data center application scenarios are gradually divided into generalpurpose computing and intelligent computing scenarios. Data centers need to ensure service continuity of general-purpose computing clusters while unleashing the full potential of intelligent computing clusters, so as to guarantee stable and efficient operation in the AI era. Which of the following statements are true about the service requirements of data center networks in the two scenarios? (Select all that apply)

Options :

A : The general-purpose computing network demands a well-defined hierarchy, adopting a coreaggregation-access three-layer architecture.

B : The general-purpose computing network requires high network stability and efficiency. Technologies such as M-LAG can be used to implement fast failover, and VXLAN can be deployed to build a large Layer 2 network for VM migration.

C : The intelligent computing network requires zero packet loss, which necessitates the deployment of various lossless network technologies such as PFC and ECN.

D : The intelligent computing network requires ultra-low latency, including the latency of data transmission within a compute node. The latency can be further reduced by using the RoCE protocol.

Answer: B,C

Question 4

On the network shown in the figure, GE1/0/1 and GE1/0/2 of SW1 are access interfaces, and their PVIDs are VLAN 2 and VLAN 3 respectively. GE1/0/1 of SW2 is also an access interface, and its PVID is VLAN 4. Which of the following configurations on SW1 and SW2 can ensure that data packets sent from PC1 and PC2 can reach PC3?

Options :

A : Configure GE1/0/3 of SW2 as a hybrid interface, add it to VLAN 4 in untagged mode, and retain the default PVID.

B : Configure GE1/0/3 of SW1 as a hybrid interface, add it to VLAN 2 and VLAN 3 in untagged mode, and set its PVID to VLAN 4.

C : Configure GE1/0/3 of SW2 as a trunk interface, configure it to allow packets from VLAN 4 to pass through, and set its PVID to VLAN 4.

D : Configure GE1/0/3 of SW1 as a trunk interface, configure it to allow packets from VLAN 2 and VLAN 3 to pass through, and set its PVID to VLAN 4.

Answer: B,C

Question 5

On the OSPF network shown in the figure, all IP addresses can communicate with each other. Then the following configurations are added on R1:Which IP address of S1 can successfully ping 10.2.23.3?

Options :

A : 10.1.1.1

B : 10.2.1.1

C : 10.3.1.1

D : 10.0.1.1

Answer: B

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