350-501 Architecture Practice Question
Which component of the IOS XR architecture is responsible for managing the system configuration and providing a separation of control plane for multiple tenants?
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
✓
Default SDR
The Default Secure Domain Router (SDR) in IOS XR manages the system configuration and provides logical separation of the control plane for multiple tenants. Other options: XR Config Manager is a tool for configuration management but not for tenant separation; Admin Plane handles administrative functions like system monitoring; LRO (Label Rewrite Engine) is used for label switching operations, unrelated to configuration or tenant separation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Default SDR
Why this is correct
Default SDR (Secure Domain Router) handles configuration and control plane separation.
- ✗
XR Config Manager
Why it's wrong here
There is no such component; configuration is managed within SDRs.
- ✗
Admin Plane
Why it's wrong here
Admin plane manages system administration and resource allocation across SDRs.
- ✗
LRO (Label Rewrite Engine)
Why it's wrong here
LRO is a forwarding component, not related to configuration.
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.