Which of the following is not the basic network type defined by OSPF?

• A.P2MP
• B.Virtual Link
• C.Broadcast
• D.NBMA

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BGP and IGP use the same routing table in the settings. In order to implement communication between different ASs, BGP needs to interact with the IGP, that is, the BGP routing table and the IGP routing table are introduced to each other.

• A.FALSE
• B.TRUE

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When multiple routing tools are configured for route filtering for a BGP neighbor, which of the following description is wrong? (Multiple choice)

• A.For the peer to receive the route, route-policy is first processed with PPe.
• B.For the peer to send the route, route-policy is first processed with IPe.
• C.For the peer to send the route, PPe is first processed with route-policy.
• D.For the peer to receive the route, IP-Prefix is first processed with route-policy.

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Which of the description about the port isolation of Huawei switch provides the function of configuring port isolation?

• A.If it is isolated from interface B on interface A, the packets sent from interface A cannot reach interface B, but the packets sent from interface B can reach interface A.
• B.Huawei switches support 64 isolation groups, numbered 0~63.
• C.The port isolation mode can be configured as Layer 2 and Layer 3 isolation or Layer 2 isolation as Layer 3 interworking.
• D.Interface unidirectional isolation supports mixed isolation of four types of interfaces: E, GE, XGE, and Eth-Trunk. However, it does not support unidirectional isolation of an interface from itself, unidirectional isolation of an interface from a management network interface, and Eth-Trunk and its member interfaces. One-way isolation.

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The BGP protocol has a message that is periodically sent between BGP neighbors to maintain the connection relationship. This message is:

• A.Update
• B.Keepalive
• C.Open
• D.Hello

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