What is a disadvantage of deploying OSPF in a large single area routing environment?
- OSPF uses a topology database of alternate routes.
- OSPF uses excessive LSP flooding.
- OSPF uses a metric of bandwidth and delay.
- OSPF uses multicast updates.
Explanation: Link-state protocols have the following disadvantages:
Memory Requirements – Creating and maintaining the link-state database and SPF tree.
Processing Requirements – The SPF algorithm requires more CPU time than distance vector algorithms because link-state protocols build a complete map of the topology.
Bandwidth Requirements – Link-state packet flooding can adversely affect the available bandwidth on a network.
Exam with this question: CCNA 3 (v5.0.3 + v6.0) Chapter 5 Exam Answers
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