- Exam Code: NS0-159
- Exam Name: NetApp Certified Data Administrator, ONTAP
- Updated: Sep 06, 2026
- Q & A: 90 Questions and Answers
Walking into the NS0-159 exam without ever sitting a timed mock test is an unnecessary risk. The Actual4Dumps test engines recreate real exam conditions for the Network Appliance NetApp Certified Data Administrator, ONTAP, so pacing and pressure feel familiar long before the real thing.
| Certification Vendor: | NetApp |
|---|---|
| Exam Name: | NetApp Certified Data Administrator, ONTAP Exam (NS0-159) |
| Exam Number: | NS0-159 |
| Related Certifications: | NetApp Certified Data Administrator, ONTAP (updated exam versions) NetApp Certified Hybrid Cloud Administrator |
| Exam Duration: | 90-120 |
| Available Languages: | English |
| Passing Score: | Not publicly disclosed (commonly estimated ~65-70%) |
| Exam Format: | Multiple choice, Scenario-based questions |
| Certificate Validity Period: | 2 years |
| Real Exam Qty: | Approximately 60 (may vary) |
| Exam Price: | USD 150 (varies by region) |
| Recommended Training: | ONTAP Administration Training NetApp Learning Services |
| Exam Registration: | Pearson VUE NetApp Exams NetApp Certification Portal |
| Sample Questions: | ![]() |
| Exam Way: | Online proctored or authorized testing center |
| Pre Condition: | Recommended experience with ONTAP administration and basic storage/networking knowledge; no strict formal prerequisites required. |
| Official Syllabus URL: | https://www.netapp.com/services/training/certification/ |
| Section | Objectives |
|---|---|
| Topic 1: Data Protection | - Backup and restore concepts - Snapshot copies - SnapMirror replication |
| Topic 2: Storage Management | - LUNs and SAN configuration - Aggregates and volumes - NAS protocols (NFS, SMB/CIFS) |
| Topic 3: Networking and Access | - Network configuration and failover - Logical interfaces (LIFs) |
| Topic 4: ONTAP Architecture and Concepts | - WAFL file system fundamentals - Cluster and node architecture - Storage virtual machines (SVMs) |
| Topic 5: System Administration and Maintenance | - Performance optimization basics - Cluster administration tools - Monitoring and troubleshooting |
The Network Appliance NetApp Certified Data Administrator, ONTAP is the official Network Appliance exam that leads to the NetApp Certified Data Administrator, ONTAP (NCDA ONTAP) certification at the Associate level. Passing it validates your skills against Network Appliance standards and proves your qualification to current and future employers. The credential is also connected with related certifications such as NetApp Certified Hybrid Cloud Administrator, NetApp Certified Data Administrator, ONTAP (updated exam versions), so it can serve as a solid step in a broader certification path.
The NS0-159 exam has Approximately 60 (may vary) questions in total and must be completed within 90-120. That leaves only a narrow time budget per item, so train yourself to flag a difficult question, move on, and circle back later instead of getting stuck. A week or two before your test date, run at least one full timed mock exam in the Actual4Dumps desktop or online test engine under the same 90-120 limit, and repeat until you can finish with a few minutes left for review.
The passing score for the NS0-159 exam is Not publicly disclosed (commonly estimated ~65-70%), and the official registration fee is USD 150 (varies by region). Keep in mind that a failed attempt is not discounted — retaking the exam means paying the full fee again — so it is wise not to book your seat until your practice scores sit comfortably above the passing mark. Working through the 90 questions at Actual4Dumps in timed mode is a reliable way to judge when you are truly ready.
Network Appliance sets the following requirement for the NS0-159 exam: Recommended experience with ONTAP administration and basic storage/networking knowledge; no strict formal prerequisites required.. Eligibility rules can change from time to time, so always confirm the current prerequisites on the official exam page at https://www.netapp.com/services/training/certification/ before you register.
You can register for the Network Appliance NetApp Certified Data Administrator, ONTAP through the following official channels:
The NS0-159 exam is delivered as Online proctored or authorized testing center, so review the technical and check-in requirements for that format when you schedule your appointment.
Network Appliance recommends the following official training options for the Network Appliance NetApp Certified Data Administrator, ONTAP:
Official courses build the theory, and pairing them with the 90 practice questions from Actual4Dumps turns that knowledge into exam-ready answers.
Yes. Actual4Dumps offers a free PDF demo for the Network Appliance NetApp Certified Data Administrator, ONTAP, so you can review real sample questions and judge the quality before paying anything. After your purchase, you receive 365 days of free updates — whenever the question pool changes, you get the latest version at no cost. Once that period expires, you can extend your update service at a 50% discount from your member zone.
If you take the NS0-159 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee. To qualify, submit a scanned copy of your exam enrollment slip together with your official Score Report (PDF) within 2 days after the exam date, and your claim will be processed within 7 days. Note that the guarantee applies only to the corresponding exam: attempts taken within 3 days of purchase, downloaded-but-unused materials, free resources, and expired orders are not eligible, and the candidate name must match the purchaser name. If you would rather not refund, you can exchange the product for two free exam products of equal value while keeping the update service on your original purchase.
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The Network Appliance NetApp Certified Data Administrator, ONTAP is organized into 5 domains. Among the first ones are Data Protection, Storage Management, ONTAP Architecture and Concepts, and the remaining domains cover the rest of the official objectives. For the complete topic breakdown with every subtopic, see the full NS0-159 exam outline above on this page.
Which NetApp cluster configuration requires the use of epsilon?
Within ONTAP 9.3, in which two layers would deduplication be applied? (Choose two.)
Click the Exhibit button.
Your 4-node cluster has two controllers in takeover as shown in the exhibit.
Which action must be performed to ensure a giveback occurs on both nodes?
Which two network neighbor discovery protocols are supported in ONTAP 9.3? (Choose two.)
Your company is merging with another company that has overlapping IP addresses from the same subnet range. You need to connect your ONTAP 9.3 cluster to the overlapping network.
In this scenario, which ONTAP networking feature allows connectivity without IP address conflicts?
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