ICND1: Interconnecting Cisco Networking Devices Part 1 (CCENT, legacy) — Question 74

The OSPF Hello protocol performs which of the following tasks? (Choose two.)

Answer options

• A. It provides dynamic neighbor discovery.
• B. It detects unreachable neighbors in 90 second intervals.
• C. It maintains neighbor relationships.
• D. It negotiates correctness parameters between neighboring interfaces.
• E. It uses timers to elect the router with the fastest links as the designated router.
• F. It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF.

Correct answer: A, C

Explanation

The correct answers are A and C because the OSPF Hello protocol is responsible for discovering neighbors dynamically and maintaining the relationships with them. Options B, D, E, and F either describe functions not performed by the Hello protocol or misrepresent its role in OSPF operations.