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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.