350-501 MPLS and Segment Routing Practice Question
What is the purpose of the SRGB (Segment Routing Global Block) in SR-MPLS?
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
✓
It defines a contiguous block of labels used for global SIDs such as Node SIDs.
The SRGB defines a range of labels reserved for global segment routing SIDs (e.g., Node SIDs). It ensures that the same label value represents the same prefix across the domain, avoiding label conflicts.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
It defines a contiguous block of labels used for global SIDs such as Node SIDs.
Why this is correct
Correct definition.
- ✗
It defines the range of labels for Adjacency SIDs.
Why it's wrong here
Adjacency SIDs are local.
- ✗
It is used to reserve labels for RSVP-TE tunnels.
Why it's wrong here
RSVP-TE uses different label space.
- ✗
It is the set of labels allowed for MPLS VPNs.
Why it's wrong here
VPN labels are separate.
Go deeper
Related to this question
About these practice questions
This 350-501 question is part of Courseiva's 971-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-501 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 350-501 exam.