There is an AS-path-filter, ip as-path-filter 1 permit ^100(_100)*(_400)*, which AS-PATH attribute cannot be matched by the As-path-filter?

• A.100 400
• B.100 200 900
• C.100
• D.100 400 400 400

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Which of the following tools cannot be directly referenced by the If-match clause in the Route-policy?

• A.IP-prefix
• B.Community-filt
• C.AS-path-filter
• D.Regular expression

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The existing route-policy is as follows: ip community-filter 1permit 100:1 ip as-path-filter 2 permit^100$ route-policytest permit node 10 if-match community-filter 1 if-match as-path-filter 2 apply as -path 200 the above configuration description, which is correct?

• A.Only when the community attribute value carried in the BGP route is 100:1 or AS_PATH is 100, the BGP route matches the route-policy above. The AS-PATH attribute of the matching route will be changed to 200.
• B.As long as the BGP route carries the community attribute value of 100:1, the BGP route matches the route-policy above. The AS-PATH attribute of the matching route will be changed to 200.
• C.Only when the BGP route carries the AS-PATH as 100, the BGP route matches the route-policy above. The AS-PATH attribute of the matching route will be changed to 200.
• D.Only when the community attribute value carried in the BGP route is 100:1 and AS_PATH is 100, the BGP route matches the route-policy above. The AS-PATH attribute of the matching route will be changed to 200.

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In the case of not dividing the area, which of the following description is true about the link state routing protocol? (Multiple Choice)

• A.The router will send all the wrong path status information sent by one neighbor to all other neighbors to ensure the synchronization of the database.
• B.Each router learns the route directly from the routing update and adds it to the routing table.
• C.Routers in the entire flooding domain have the same wrong path state database
• D.Each router establishes a topological structure of the entire flood domain
• E.Routers in the flooding domain may repeatedly receive the same link state information.

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What type of LSA does not exist in the OSPF stub area? (Multiple Choice)

• A.Type-7
• B.Type-4
• C.Type-5
• D.Type-3

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