H12-261-ENU 試験問題を無料オンラインアクセス

As shown in the figure, R1, R2, and R3 run OSPF at the same time and announce their respective loopbacks. Which of the following description is wrong?

• A.You can use the filter import command to filter the loopback route of R3 in Area0.
• B.You can use the filter export command to filter the loopback route of R3 in R2.
• C.You can use the filter-policy import command to filter the loopback route of R3 in R1.
• D.You can use the filter-policy export command to filter the loopback route of R3 in R2.

Which of the following is correct about the ISIS LSP fragmentation extension?

• A.ISIS fragmentation extensions are achieved by adding virtual systems, which can be expanded to a maximum of 1000 virtual systems.
• B.The maximum number of fragments that an ISIS router can generate is 1024.
• C.Enable the ISIS router to generate more LSP fragments to carry more ISIS information.
• D.ISIS fragmentation extensions are equally valid for Hello packets.

Regarding BGP route filtering, what is wrong with the following description? (Multiple Choice)

• A.The filtering relationship between the nodes of the Route-Policy is "or", that is, if it is filtered by a node, it can pass route-policy.
• B.When receiving a route of a BGP peer, perform a routing policy to filter unwanted BGP routes. These routes are not added to the local BGP routing table.
• C.For a locally advertised route, configure a routing policy. The policy takes effect before the route is added to the BGP routing table.
• D.In the same node of Route-Policy, the relationship of multiple if-match clauses for different attributes is "OR".

Which of the following description about the assertion mechanism is correct?

• A.The size of the IP address will not be used as a condition for election during the election of the winner.
• B.The assertion mechanism is used for the election of the DR.
• C.In the assertion mechanism, loser shut down the interface connected to the broadcast network.
• D.In the assertion mechanism, the winner is responsible for forwarding multicast data to the broadcast network segment.

The interface Serial0 of an existing router goes to OSPF and sets the interface Serial0 to the Silent interface. What effect does this setting have?

• A.OSPF does not establish any adjacencies through the interface.
• B.OSPF establishes available adjacencies through this interface.
• C.OSPF does not add routes learned from the interface to the local routing table.
• D.OSPF will receive routing updates from neighbors