300-410 Practice Question: The default OSPF dead timer interval on a…

What is the default OSPF dead timer interval on a point-to-point interface within a VRF-Lite configuration?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

40 seconds

OSPF defaults to a dead timer of 40 seconds on point-to-point and broadcast interfaces, which is four times the default hello timer of 10 seconds.

Answer analysis

For each option: why learners choose it and why it is or isn't the right answer here.

✗
30 seconds
Why it's wrong here
This is not a standard OSPF default dead timer.
✓
40 seconds
Why this is correct
The default OSPF dead timer is 40 seconds on point-to-point and broadcast interfaces.
✗
120 seconds
Why it's wrong here
This is the default dead timer for OSPF on NBMA networks.
✗
10 seconds
Why it's wrong here
This is the default hello timer, not the dead timer.

Visual reference

Quick reference

Protocol	Metric	Max Hops	Algorithm	Type
RIP v2	Hop count	15	Bellman-Ford	Distance vector
OSPF	Cost (bandwidth)	Unlimited	Dijkstra (SPF)	Link state
EIGRP	Composite metric	Unlimited	DUAL	Hybrid
IS-IS	Cost	Unlimited	Dijkstra	Link state
BGP	Policy / attributes	Unlimited	Path vector	Path vector

RIP's 15-hop limit makes it unsuitable for large networks. OSPF and EIGRP dominate modern enterprise deployments.

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