1.3.7 Check Your Understanding – OSPF Operation Answers

1. During this OSPF state on multiaccess networks, the routers elect a Designated Router (DR) and a Backup Designated Router (BDR).

• Down State
• Init State
• Two-Way State
• ExStart State
• Exchange State
• Loading State
• Full State

2. During this OSPF state, routers send each other DBD packets.

• Down State
• Init State
• Two-Way State
• ExStart State
• Exchange State
• Loading State
• Full State

3. An OSPF router enters this state when it has received a Hello packet from a neighbor, containing the sending Router ID.

• Down State
• Init State
• Two-Way State
• ExStart State
• Exchange State
• Loading State
• Full State

4. During this OSPF state on point-to-point networks, the routers decide which router initiates the exchange of DBD packets.

• Down State
• Init State
• Two-Way State
• ExStart State
• Exchange State
• Loading State
• Full State

5. During this OSPF state, routers have converged link-state databases.

• Down State
• Init State
• Two-Way State
• ExStart State
• Exchange State
• Loading State
• Full State

6. During this OSPF state, no Hello packets are received.

• Down State
• Init State
• Two-Way State
• ExStart State
• Exchange State
• Loading State
• Full State

7. During this OSPF state, routes are processed using the SPF algorithm.

• Down State
• Init State
• Two-Way State
• ExStart State
• Exchange State
• Full State
• Loading State