Regarding the BGP anti-ring mechanism, which of the following description is correct? (Multiple Choice)

• A.Routes learned from IBGP are not advertised to IBGP neighbors to prevent routing loops within the AS.
• B.The Cluster List attribute is used for the anti-ring in the reflector cluster. If the router discovers that the cluster list of the route entry contains its own cluster ID, it will reject the route.
• C.You can use the AS_CONFED_SET attribute to prevent loops within the federation.
• D.Use the AS_PATH attribute between autonomous systems to prevent loops.

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What kind of packets can Huawei equipment perform traffic suppression for? (Multiple Choice)

• A.Broadcast
• B.Multicast
• C.Unknown unicast
• D.Known unicast

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An OSPF protocol is running on a company network. An engineer wants to understand the OSPF mechanism to perform packet capture operations on the network, which of the following description about the OSPF packet is correct? (Multiple Choice)

• A.Sending Hello packets immediately after the interface joins the OSPF area.
• B.The LS Update message is sent only when the adjacency is established.
• C.After receiving the LS Update message, the router must send LS Ack to confirm.
• D.LS Update message synchronizes the link state database by sending detailed LSA information.

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In an MPLS VPN network, different CE devices can exchange routing information with the same PE device using different routing protocols. The routing protocols used between different CE devices and the same device are independent of each other.

• A.False
• B.True

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After reset isis all is executed, the IS-IS protocol process needs to be restarted and neighbors need to be re-established, but various IS-IS statistics will not be cleared.

• A.FALSE
• B.TRUE

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