[&] Which OSPF packet type is only exchanged between two routers during the initial stages of forming an adjacency? (**Select the best answer**)
- Link State Acknowledgement
- Link State Update
- Database Descriptor
- Hello
- Link State Request

[&] Which of the following lists all the states a router goes through when building an OSPF full adjacency (in the correct order)? (Select the best answer)
- INIT --- 2-Way --- EXSTART --- Exchange --- Loading --- Full
- INIT --- 2-Way --- Loading --- EXSTART --- Exchange  --- Full
- Attempt --- 2-Way --- EXSTART --- Loading --- Exchange  --- Full
- 2-Way --- INIT --- Loading --- EXSTART --- Exchange  --- Full

[&] Which type of OSPF packet is used to transport LSAs? (Select the best answer)
- LS Transmit
- LS Advertisement
- LS Update
- LS Request

[&] While building an OSPF adjacency, two routers go into the EXSTART state. Up to this point, what OSPF packet types have been exchanged? (Select two answers)
- Link State Request packets
- Database Description packets
- Link State Acknowledgment packets
- Hello packets
- Link State Update packets