In what three ways does Open Shortest Path First (OSPF) control network routing table update traffic? (Choose three.) A. It provides for partitioning networks into subdomains, called area routes.
B. It supports multicast, rather than broadcast route update messages.
C. It passes only route table changes, rather than entire tables.
D. It defines an autonomous system (AS) diameter of 15 hops.
The correct answers are:
A. It provides for partitioning networks into subdomains, called area routes.
B. It supports multicast, rather than broadcast route update messages.
C. It passes only route table changes, rather than entire tables.
Explanation:
1. A: By partitioning networks into areas, OSPF limits the scope of updates, reducing traffic.
2. B: Using multicast reduces unnecessary traffic because only specific routers need to receive the updates, unlike broadcast messages.
3. C: Sending only the changes in routing information instead of full tables minimizes the amount of data transmitted.
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