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200-901 Practice Question: A DevOps team is using Cisco NSO to manage…
A DevOps team is using Cisco NSO to manage network devices. They want to ensure that the configuration is compliant with corporate standards. Which NSO feature should they use?
⚠ Common exam trap
Cisco often tests the distinction between passive monitoring features (snapshots, notifications, rollback) and active remediation (FastMap), leading candidates to pick a feature that only detects drift rather than one that corrects it.
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
✓
Service reconciliation using FastMap
Service reconciliation using FastMap is the correct NSO feature for ensuring configuration compliance with corporate standards because it detects and corrects deviations between the intended service model (defined in YANG) and the actual device configuration. FastMap performs a diff and re-applies the service logic to bring the device back into compliance, making it ideal for continuous compliance enforcement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configuration Snapshots
Why it's wrong here
Snapshots are for backup, not compliance checking.
- ✗
NETCONF notifications
Why it's wrong here
Notifications are for event monitoring.
- ✗
Configuration Database (CDB) rollback
Why it's wrong here
CDB rollback is for reverting changes.
- ✓
Service reconciliation using FastMap
Why this is correct
FastMap reconciles device config with service model to ensure compliance.
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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.