Which two statements are true of the OSPF link-state routing protocol? (Choose two.)
A.
Using the Bellman-Ford algorithm, each OSPF router independently calculates its best
paths to all destinations in the network.
B.
Using the DUAL algorithm, each OSPF router independently calculates its best paths to
all destinations in the network.
C.
OSPF sends summaries of individual link-state entries every 30 minutes to ensure LSDB
synchronization.
D.
OSPF sends triggered updates when a network change occurs.
E.
OSPF sends updates every 10 seconds.
F.
When a link changes state, the router that detectedthe change creates a link-state
advertisement (LSA) and propagates it to all OSPF devices using the 224.0.0.6 multicast
address.
Explanation:
Incorrect answer E. OSPF send hello packets every 10 seconds, not the updates, OSPF sends triggered
updates when a network change occurs.
Incorrect F. On OSPF, router use the multicast address 224.0.0.6 to send packets to DR and BDR, only DR
and BDR can get the information from this multicastaddress