Regarding the basic forwarding process of MPL S, which of the following statement is wrong?

• A.By default, the Egress node that supports PHP has a label value of 3 assigned to the penultimate hop node.
• B.When the IP packet enters the MPLS domain, check whether the Tunel ID value corresponding to the destination IP address is 0x0. If the Tunel ID value is 0x0, then enter the MPLS forwarding process.
• C.The transmitting node device will replace the existing label on the top of the stack (the outermost label) with the label allocated by the next hop device.
• D.When an IP packet enters the MPLS domain, the MPLS border device inserts a new label between the packet's Layer 2 header and the IP header.

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Which of the following parameters are modified, and then the IS-IS neighbor relationship needs to be re-established? (Multiple choice)

• A.Modify the IH transmission interval of the IS-IS interface
• B.Modify the cost value of the IS-IS interface
• C.Modify the IP address of the IS-IS interface
• D.Modify the level of the IS-IS interface

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To achieve the traffic filtering function, you can use traffic-filter or MQC. Compared with traffic-filter, MQC can be called in more views.

• A.TURE
• B.FALSE

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Which scenario can use AS-path -filter?

• A.If-match clause in Route-policy
• B.apply clause in Route-policy
• C.Filter the route sent to the BGP neighbor according to the AS_PATH attribute carried in the route. For example, the command peer x.x.x.x as-path-filter export
• D.Filter the route received to the BGP neighbor according to the AS_PATH attribute carried in the route. For example, the command peer x.x.x.x as-path-filter import

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Which descriptions are correct about the BGP reflector? (Multiple Choice)

• A.The route reflector can advertise other clients and non-clients from the routes learned from one client.
• B.IBGP neighbor relationships need to be fully interconnected without a route reflector. The introduction of route reflectors can reduce the requirements for full interconnection
• C.The route reflector can advertise the routes learned from the non-client to all clients.
• D.The route reflector can advertise all clients and non-clients from routes learned from IBGP neighbors.

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