Question: Which of the following is a characteristic of OSPF?

Options:

1. Uses hop count as a metric
2. Supports VLSM and CIDR
3. Is a distance vector protocol
4. Sends updates every 30 seconds

Correct Answer: Supports VLSM and CIDR

Solution:

OSPF (Open Shortest Path First) supports Variable Length Subnet Masking (VLSM) and Classless Inter-Domain Routing (CIDR), allowing for more efficient IP address usage.