What are the benefits of OSPF area division? (Multiple choice)

• A.A large number of LSA flooding is restricted to a single area
• B.It can reduce the size of LSDB and thus reduce the consumption of router memory
• C.LSA can also be reduced with the division of areas, reducing the consumption of router CPU
• D.Routers in an area can understand the topology details outside their area

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Which of the following LSAs only spread in a single area? (Multiple choice)

• A.AS External LSA
• B.Summary LSA
• C.Network LSA
• D.Router LSA

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As shown in the figure, which of the following statement is correct? (Multiple Choice)

• A.If the R2 Ethernet 0/0/1 interface is down, the next hop of the route that R1 reaches 10.0.0.2 is changed to 10.0.12.2.
• B.If the R2 Ethernet 0/0/1 interface is down, the R1 BFD session can quickly detect the fault and notify R1 to make the OSPF neighbor relationship down.
• C.If the R2 Ethernet0/0/0 interface is down, the next hop of the route that R1 reaches 10.0.0.2 is changed to 10.0.21.2.
• D.The OSPF status changes to FULL, which triggers the BFD session.
• E.If the BFD function is disabled on R2, the BFD session on R1 will be down. This will result in the ospf neighbor relationship down.

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Through the following displayed command, you can determine that switch loop fault is caused by ().

• A.
• B.
• C.
• D.

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IS-IS supports the process and calculation of IPv6 routes by adding new TLV carrying IPv6 addresses and reachability information.

• A.FALSE
• B.TURE

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