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An OSPF router receives an LSA. The router checks its sequence number and finds that this number is higher than the sequence number it already has. Which two tasks does the router perform with the LSA?

A. Ignores the lsa
B. Adds it to the database
C. Sends newer lsu update to source router
D. Floods the lsa to the other routers

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An OSPF router receives an LSA. The router checks its sequence number and finds that this number is lower than the sequence number it already has. What does the router do with the LSA?

A. Ignores the lsa
B. Adds it to the database
C. Sends newer lsu update to source router
D. Floods the lsa to the other routers

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Each LSA has its own age timer. By default, how long does an LSA wait before requiring an update?

A. 30 seconds
B. 1 minute
C. 30 minutes
D. 1 hour

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Distance vector protocols use the concept of split horizon, but link-state routing protocols, such as OSPF, do not.

A. True
B. False
C.
D.

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The outcome of Dijkstra’s calculation is used to populate the __________

A. Topology table
B. Routing table
C. Neighbor table
D. Adjacency table

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What is the IP protocol number for OSPF packets?