What is a function of OSPF hello packets?
- to send specifically requested link-state records
- to discover neighbors and build adjacencies between them
- to ensure database synchronization between routers
- to request specific link-state records from neighbor routers
Explanation: The OSPF hello packet serves three primary functions: discover OSPF neighbors and establish adjacencies, advertise parameters that OSPF neighbors must agree on, and elect the DR and BDR.
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