An OSPF network has been designed with multiple areas to improve scalability. Which two
statements are true? (Choose two.)
A.
OSPF provides loop-free routing within an OSPF routing domain, but does not guarantee
symmetrical routing.
B.
Each router in the OSPF network runs the shortest-path-first algorithm to determine
paths through the network.
C.
The Area Border Router for each area runs the shortest-path-first algorithm and floods its
results through the area.
D.
Each area must have at least one link connecting it to each of the other areas of the
OSPF network.