Match the packet type with the proper function and description.

Explanation:
| Contains a list of LSAs that need to be updated | LSU |
| Discovers and maintains neighbors | Hello |
| Ensures a reliable transmission of LSAs | LSAck |
| Generated when the router does not have the current information in its database | LSR |
| Contains the LSA headers that help routers build the link-state database | DBD |
Related exam: Modules 8 – 13: Checkpoint Exam: Network Routing Answers (CCNP ENCOR v9)
