350-501 Architecture Practice Question
In IOS XR, each routing protocol runs as a separate process. What is the primary benefit of this architecture?
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
✓
Fault isolation between protocols
Process separation prevents a failure in one protocol from affecting others, enhancing overall system stability.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Faster convergence by running protocols in parallel
Why it's wrong here
Parallel processing may help convergence, but fault isolation is the key benefit.
- ✗
Reduced memory usage by sharing libraries
Why it's wrong here
Process separation typically increases memory usage due to separate address spaces.
- ✓
Fault isolation between protocols
Why this is correct
Each protocol runs independently, so a crash in one does not impact others.
- ✗
Simplified configuration due to centralized processing
Why it's wrong here
Configuration is simplified, but that is not the primary benefit of process separation.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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