hardMultiple ChoiceObjective-mapped
200-901 Practice Question: A company uses Cisco NSO to manage multiple…
A company uses Cisco NSO to manage multiple network devices. They want to ensure that before deploying a configuration change, all devices are in sync with NSO's CDB. Which approach is the best practice?
⚠ Common exam trap
Cisco often tests the misconception that 'check-sync' is sufficient for safe deployments, but the trap is that it only verifies state without automatically resolving drift, which still requires a separate sync action to ensure CDB accuracy before deployment.
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
✓
Configure NSO to automatically sync devices when changes are detected
NSO's automatic sync capability (via the 'devices sync' or 'sync-from' action triggered by device changes) ensures that the Configuration Database (CDB) remains the authoritative source of truth without manual intervention. This best practice eliminates the risk of deploying a change to devices that are out of sync, which could cause configuration drift or operational failures. NSO's NETCONF-based synchronization allows it to detect and reconcile differences between CDB and device running configurations automatically.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure NSO to automatically sync devices when changes are detected
Why this is correct
NSO can automatically sync devices via 'sync-from' triggered by device changes or periodic checks.
- ✗
Run 'devices sync-from' on all devices before each deployment
Why it's wrong here
Manually syncing before every deployment is inefficient and error-prone.
- ✗
Schedule a periodic sync every hour
Why it's wrong here
Periodic sync may miss changes between intervals.
- ✗
Use the 'check-sync' action and only deploy if all devices are in sync
Why it's wrong here
'check-sync' only reports the sync status, it does not automatically sync.
Go deeper
Related to this question
About these practice questions
Courseiva writes every 200-901 question from scratch — 989 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or 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 200-901 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 200-901 exam.