單項選擇題

When learning a new route, if a LSA received is not found in the topological database, what will an internal OSPF router do?（）

A. The sequence numbers are checked, and if the LSA is val id it is entered into the topology database.
B. The LSA is placed in the topological database and an acknowledgement is sent to the transmitting router.
C. The LSA is dropped and a message is sent to the transmitting router.
D. The LSA is flooded imme diately out of all the OSPF interfaces, except the interface from which the LSA was received.

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單項選擇題

One of the most important characteristics of OSPF is Multiple areas. Which statement best describes why this feature is such an important enhancement to earlier routing protocols?（）

A. The network domain, when divided into areas, allows for the use of both IANA classful addressing and private addressing.
B. The use of multiple areas allows for the use of prioritization.
C. All computation is kept within the area, with minimum communication between the areas,allowing the network to scale to larger sizes.
D. It is easier to implement security.

單項選擇題

Which option is true regarding the synchronization rule ?（）

A. Do not use or internally advertise a route until the route is lear ned from a source other than BGP.
B. Do not use or advertise a route until the route is learned from a BGP peer.
C. Do not use or advertise routes marked PARTIAL.
D. Wait until a CONFIRM message is received before using routes from BGP neighbors.

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When learning a new route, if a LSA received is not found in the topological database, what will an internal OSPF router do?（）

你可能感興趣的試題

One of the most important characteristics of OSPF is Multiple areas. Which statement best describes why this feature is such an important enhancement to earlier routing protocols?（）

Which option is true regarding the synchronization rule ?（）

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