Cisco Enterprise Network Core Technologies (ENCOR) Practice Exam

Question: 1 / 400

How many packet types are there in OSPFv2 for communication?

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In OSPFv2 (Open Shortest Path First version 2), there are five distinct types of packets used for communication between routers. These packet types play specific roles in OSPF's operation and ensure reliable and efficient routing within a network.

The five packet types in OSPFv2 are:

1. **Hello Packets**: These are used to discover and maintain neighbor relationships. They are sent periodically and carry important information about the OSPF router's configuration and state.

2. **Database Description (DBD) Packets**: These packets are used to describe the contents of the local OSPF routing database. They are exchanged when two routers establish a relationship and need to synchronize their databases.

3. **Link State Request (LSR) Packets**: When a router wants information about specific link-state advertisements (LSAs) from a neighbor, it sends a Link State Request packet.

4. **Link State Update (LSU) Packets**: These packets carry the actual LSAs that describe the state of the network. Routers send LSUs in response to LSRs to provide the requested information.

5. **Link State Acknowledgment (LSAck) Packets**: After receiving

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