- Exam Code: NS0-159
- Exam Name: NetApp Certified Data Administrator, ONTAP
- Updated: Sep 06, 2026
- Q & A: 90 Questions and Answers
Among IT certifications, Network Appliance credentials still command genuine respect from employers. The Network Appliance NetApp Certified Data Administrator, ONTAP exam is your way in, and the 90 practice questions from Actual4Dumps make sure preparation time translates into exam-day points.
| Certification Vendor: | NetApp |
|---|---|
| Exam Name: | NetApp Certified Data Administrator, ONTAP |
| Exam Number: | NS0-159 |
| Real Exam Qty: | 60 |
| Available Languages: | English |
| Passing Score: | Approx. 64% |
| Exam Format: | Multiple choice |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 24 months (certification active once earned) |
| Exam Price: | Approx. 150 USD |
| Related Certifications: | NetApp Certified Implementation Engineer – MetroCluster Specialist NetApp Certified Implementation Engineer - SAN Specialist, ONTAP NetApp Certified Implementation Engineer - Data Protection Specialist |
| Sample Questions: | ![]() |
| Exam Way: | Delivered at Pearson VUE test centers and potentially via Pearson VUE OnVUE online proctoring. |
| Pre Condition: | Candidates should have 6–12 months experience administering NetApp ONTAP solutions, including configuration, storage administration, and data management. |
| Official Syllabus URL: | https://www.netapp.com/support-and-training/netapp-learning-services/certifications/ontap-data-administration |
| Section | Objectives |
|---|---|
| Performance | - Use performance analysis tools - Rules for storage tiering and QoS |
| Storage Provisioning | - Create/configure/expand aggregates and volumes - Disks, disk shelves, RAID groups |
| Data Protection | - Configure/administer/troubleshoot data protection - NetApp storage protection concepts and operations |
| Front-End Client Protocols | - SAN protocols configuration/monitoring - NAS protocols configuration/monitoring |
| High Availability | - Configure/monitor high-availability features - Failover functions |
| Security and Compliance | - Encryption and compliance features - ONTAP security concepts and configurations |
| Networking | - Troubleshoot network and cluster interconnects - Network concepts/components relevant to ONTAP |
| Core ONTAP | - Storage Virtual Machine usage and management - ONTAP components and features |
| Architecture | - ONTAP supported configurations for clusters/nodes - NetApp storage architecture concepts/components |
Network Appliance NetApp Certified Data Administrator, ONTAP is an official certification exam from NetApp, identified by the exam code NS0-159. Pass it and you hold the Network Appliance NCDA Certification certification, which sits at the Professional level. It also feeds into related credentials, including NetApp Certified Implementation Engineer - Data Protection Specialist, NetApp Certified Implementation Engineer - SAN Specialist, ONTAP, NetApp Certified Implementation Engineer – MetroCluster Specialist. In practical terms, this certification tells employers your skills have been measured against the vendor's own standard, which is why certified candidates tend to stand out in hiring and promotion decisions.
Expect 60 questions within 90 minutes on the Network Appliance NetApp Certified Data Administrator, ONTAP exam. Numbers aside, the real challenge is rhythm: lingering too long on one item quietly steals time from three others. Build the habit of answering, flagging, and moving on, then rehearse the full experience under a countdown with the Actual4Dumps test engine until finishing comfortably early becomes your norm.
Registration for Network Appliance NetApp Certified Data Administrator, ONTAP officially runs Approx. 150 USD, with Approx. 64% required to pass. Worth knowing before you book: retakes are billed at the same full Approx. 150 USD, so a failed attempt doubles your spend. The smarter sequence is to measure yourself first. When your scores on the Actual4Dumps practice tests clear the passing line with room to spare, consistently, that is your signal to schedule the real thing.
Candidates should have 6–12 months experience administering NetApp ONTAP solutions, including configuration, storage administration, and data management.
Because vendors update their policies without much fanfare, verify the latest entry requirements before you book using the official exam page.
Yes, and we encourage it. Download the free PDF demo of the Network Appliance NetApp Certified Data Administrator, ONTAP questions from Actual4Dumps and evaluate the quality on your own terms. After you buy, every update for the next 365 days is free, and when that window closes you can extend your update service at half price.
A 100% money-back guarantee applies, governed by clear conditions. If you sit the Network Appliance NetApp Certified Data Administrator, ONTAP exam within 60 days of purchase and fail, you can claim a full refund, as long as the exam corresponds to your product. Attempts made within 3 days of purchase are ineligible, as are products you downloaded but never used, free materials, and expired orders; the name on the exam record must match the payer's name. File your claim with a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and it is settled within 7 days. Rather have a replacement than a refund? You may exchange for two other exam products of equal value, free, and your original product keeps its update service.
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The Network Appliance NetApp Certified Data Administrator, ONTAP blueprint spans 9 domains. The ones carrying the most weight include High Availability, Networking, and Architecture. The complete domain-by-domain breakdown is in the exam topics section above; treat it as your master checklist and let the weights tell you where your study hours earn the most.
An administrator encountered a ransomware attack that affected the active file system datA. They have been creating Snapshot copies on an hourly schedule. They determine that the entire volume needs to be recovered.
In this scenario, which command would you use?
On an All Flash FAS, where is the root parity information located on a node using Advanced Disk Partitioning?
What are two benefits of using quad-path HA cabling on an AFF A700? (Choose two.)
With which type of I/O is data compaction beneficial?
You relocate an aggregate to a different node by using the storage aggregate relocate command. In this scenario, which rule applies?
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