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300-410 Practice Question: The default hello interval for the Label…
What is the default hello interval for the Label Distribution Protocol (LDP) on a Cisco IOS-XE router?
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
✓
5 seconds
LDP hello messages are sent every 5 seconds by default on Cisco IOS-XE routers to discover and maintain adjacencies.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
5 seconds
Why this is correct
The default LDP hello interval is 5 seconds.
- ✗
10 seconds
Why it's wrong here
10 seconds is the default hello interval for OSPF, not LDP.
- ✗
15 seconds
Why it's wrong here
15 seconds is the default hello interval for EIGRP.
- ✗
3 seconds
Why it's wrong here
3 seconds is not a default hello interval for any common routing protocol or LDP.
Go deeper
Related to this question
Learn chapter
VRF-Lite and Multi-Protocol BGP
Key term
LDP Protocol
LDP, or Label Distribution Protocol, is a protocol that routers use to automatically exchange labels that enable MPLS (Multiprotocol Label Switching) to create fast, efficient paths for data packets across a network.
Key term
MPLS Label Distribution
MPLS Label Distribution is the process by which routers exchange labels that tell them how to forward packets across a network without looking at the IP address each time.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 300-410 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 300-410 exam.