As shown in the figure, R1, R2, and R3 run OSPF at the same time and announce their respective loopbacks. Which of the following description is wrong?

• A.You can filter the loopback route of R3 by using filter-policy import on the R1.
• B.You can use the filter-policy export command to filter the loopback route of R3 on the R2.
• C.You can use the filter import command in Area0 to filter the loopback route of R3 on the R2.
• D.You can use the filter export command to filter the loopback route of R3 in Area1 on the R2.

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Regarding the Stub area and the NSSA area of the OSPF protocol, which of the following statement is wrong?

• A.Type 5 LSA is not allowed to be injected in the Stub area, and Type 5 LSA is allowed to inject in the NSSA area.
• B.Stub area and NSSA area are not allowed to inject Type 4 LSA.
• C.The Type 7 LSA is not allowed to be injected in the Stub area, and the NSSA area is allowed to inject the Type 7 LSA.
• D.Both the Stub area and the NSSA area are allowed to inject Type 3 LSA.

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Huawei's two switches SWA and SWB are connected through 7 Ethernet ports and configured with static link aggregation. The corresponding ports on the switch SW are Ethernet1/0/2, Ethernet1/0/3, Ethernet1/0/4. Ethernet 1/0/5, Ethernet 1/0/6, and Ethernet 1/0/7 are configured in the order of the ports. If the switch SWA and SWB supports only 6 ports per aggregation group,

• A.In the case of each interface configuration consistent, Ethernet1/0/1 Unselected port
• B.In the case of each interface configuration consistent, SWA randomly select a port in 7 ports as aggregation Unselected port
• C.In the case of each interface configuration consistent, Ethernet1/0/7 Unselected port
• D.In the case of each interface configuration consistent, Ethernet1/0/6 Unselected port

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An existing router running OSPF is connected to Zone 0 and Zone 1. You configure zone 1 as a stub area. What types of LSA are only operating inside Zone 1?

• A.Type 1 LSA, Type 2 LSA and Type 3 LSA
• B.Type 3 LSA and Type 4 LSA
• C.Type 1 LSA, Type 2 LSA and Type 5 LSA
• D.Type 7 LSA
• E.Type 1 LSA and Type 2 LSA

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In the HW MPLS network, which parameters are used to define a forwarding equivalence class? (Multiple choice)

• A.Layer 2 link
• B.BGP MED value
• C.RSVP requests resource reservation from CE
• D.IP prefix

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