Which of the following description of OSPF is correct?
A . OSPF uses the Bellman-Ford algorithm, and each router runs the algorithm independently.
B . OSPF updates regularly every 30 minutes
C . OSPF floods an LSU every 5s
D . OSPF itself does not have a certain mechanism, so OSPF relies on the upper layer protocol, that is, TCP confirmation is performed.
Answer: B