NS0-165: NetApp Certified Data Administrator, ONTAP

By Netapp · Browse Mode
About the Exam

The exam tests a candidate’s ability to administer NetApp ONTAP solutions, including storage administration, data management, networking, data protection, security, and performance topics. It is intended for candidates with about six to twelve months of hands-on ONTAP experience. Passing validates the knowledge, skills, and ability required to administer ONTAP solutions.

Exam Topics

  • Storage Platforms10–15%
  • Core ONTAP10–15%
  • ONTAP Storage10–15%
  • Networking10–15%
  • Storage Protocols and Connectivity20–25%
  • Data Protection15–20%
  • Security10–15%
  • Performance5–10%

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  3. Learn Mode — Spaced repetition schedules questions you struggle with for long-term retention.

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Last updated May 25, 2026 at 7:37 PM

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QuestionQ1

Data Protection

What enables automatic switchover of a SnapMirror active sync relationship when a site disaster occurs?

Explanation

ONTAP Mediator supplies cluster health and quorum information for a SnapMirror active sync relationship, enabling automated unplanned failover when the primary site is unavailable.

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QuestionQ2

Data Protection

Which NetApp ONTAP feature enables recovery of an SVM at an alternate location when the primary SVM is unavailable?

Explanation

SnapMirror SVM replication creates an SVM disaster-recovery relationship and allows the destination SVM to be activated after a disaster at the primary site, enabling it to serve data.

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QuestionQ3

Security

Which NetApp ONTAP service lets external antivirus servers scan files accessed through SMB before they are opened or written?

Explanation

ONTAP Vscan provides on-access antivirus scanning for SMB files. It offloads scans to external servers running supported third-party antivirus software and can suspend file operations until the external server returns the file’s scan status.

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QuestionQ4

Storage Protocols and Connectivity

An administrator wants to improve performance in a Red Hat Enterprise Linux environment by allowing read/write operations directly and in parallel on NAS storage devices.

Which NetApp ONTAP protocol is used?

Explanation

Parallel NFS (pNFS) improves performance by allowing NFS clients to perform read/write operations directly and in parallel on storage devices, bypassing the NFS server as a potential bottleneck. NetApp: Enable or disable pNFS for ONTAP SVMs

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QuestionQ5

Performance

Which NetApp tool presents visual performance-metric graphs that correlate peaks in system activity with system events occurring at the same time?

Explanation

Active IQ Unified Manager monitors ONTAP performance and provides detailed graphs of workload activity over time, together with performance-event analysis. Its event views and charts let administrators correlate performance peaks with events during the relevant time period.

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Topics covered
Storage PlatformsCore ONTAPONTAP StorageNetworkingStorage Protocols and ConnectivityData ProtectionSecurityPerformance
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