- IP number 89.
- By sending Hello packets.
- Link State.
- True.
- Areas.
- Non-Broadcast, Point-to-Point, Broadcast, Point-to-Multipoint, Point-to-Multipoint Non-Broadcast, and Loopback.
- The router ospf <id> command.
- False.
- The ip ospf <id> area 2 command.
- Passive.