350-501 Architecture Practice Question
In the context of IOS XR commit/rollback configuration model, which command is used to apply a set of configuration changes as a single atomic operation?
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
✓
commit
The 'commit' command applies changes atomically; if any part fails, the entire commit is rejected.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
save config
Why it's wrong here
Not a standard IOS XR commit command.
- ✗
apply-changes
Why it's wrong here
Not a valid IOS XR command.
- ✗
copy running-config startup-config
Why it's wrong here
This is a traditional Cisco IOS command, not atomic commit.
- ✓
commit
Why this is correct
'commit' atomically applies configuration changes in IOS XR.
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