Which multicast address does the OSPF Hello protocol use?

A. 224.0.0.5
B. 224.0.0.6
C. 224.0.0.7
D. 224.0.0.8

Which packet is NOT an OSPF packet type?

A. Lsu
B. Lsr
C. Dbd
D. Query

What is the IP protocol number for OSPF packets?

A. 89
B. 86
C. 20
D. 76

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

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

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.

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

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

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

An OSPF router receives an LSA, the router checks its sequence number, and this number matches the sequence number of the LSA that the receiving router already has. What does the receiving 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

A network management system can be divided into ___________

A. Three categories
B. Five broad categories
C. Seven broad categories
D. Ten broad categories