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300-410 Practice Question: In MPLS LDP, what is the default label retention…
In MPLS LDP, what is the default label retention mode on Cisco IOS-XE routers?
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
✓
Liberal Label Retention mode
The default label retention mode is Liberal, meaning that a router retains all label bindings received from neighbors, even if the neighbor is not the next hop for the FEC.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Liberal Label Retention mode
Why this is correct
Liberal retention is the default; it allows faster convergence but uses more memory.
- ✗
Conservative Label Retention mode
Why it's wrong here
Conservative retention only retains labels from the next hop, but it is not the default.
- ✗
Ordered Label Retention mode
Why it's wrong here
Ordered is a label distribution control mode, not a retention mode.
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Independent Label Retention mode
Why it's wrong here
Independent is a label distribution control mode, not a retention mode.
Go deeper
Related to this question
Learn chapter
OSPF Neighbor Adjacency and Basics
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.
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.
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JA
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.