What are two benefits of using a single OSPF area network design? (Choose two.)
A.
It is less CPU intensive for routers in the single area.
B.
It reduces the types of LSAs that are generated.
C.
It removes the need for virtual links.
D.
It increases LSA response times.
E.
It reduces the number of required OSPF neighbor adjacencies.
The OSPF Flooding Reduction reduces unnecessary flooding of already known and unchanged info from LSA. To achieve this reduction, the LSAs are now flooded with the higher bit set.
The link-state advertisement (LSA) is a basic communication means of the OSPF routing protocol for the Internet Protocol (IP). It communicates the router’s local routing topology to all other local routers in the same OSPF area. OSPF is designed for scalability, so some LSAs are not flooded out on all interfaces, but only on those that belong to the appropriate area. In this way detailed information can be kept localized, while summary information is flooded to the rest of the network.