NS0-165, the exam for the NetApp Certified Data Administrator, ONTAP (NCDA) credential, costs $200 USD, and a pass keeps the certification active for 24 months. NetApp publishes both numbers. It also publishes a short set of time rules that decide when you can book, when you can retake and when you have to renew.
This post puts the dollars and the days in one place, then shows where the eight exam domains fit. Every NetApp figure below was read on NetApp's own pages on 10 October 2026.
How much does the NS0-165 exam cost?
The NS0-165 exam costs $200.00 USD. NetApp's certification program policies and FAQs state that price adjustments went into effect on 1 May 2025 and that certification exams are $200, with two exceptions that do not apply here: the FlexPod exams at $300 and the Expert level exams at $250.
The same page gives the smaller numbers around it:
| Item | Amount | Note |
|---|---|---|
| NS0-165 certification exam | $200.00 USD | In effect since 1 May 2025 |
| Accreditation exam | $20.00 USD | NetApp suggests two associate accreditations, both optional |
| Exam with a 50% discount voucher | $100.00 USD | Discount vouchers are based on a percentage off |
| Certification prep sessions | Free | Two sessions, listed on the learning path |
Older pages around the web still quote the earlier price. Go by NetApp's policy page, because that is the figure you will be charged.
Vouchers come with their own rules. One voucher covers one person, one time, for one exam. It cannot be extended past its expiration date, and it cannot be refunded or resold.
What has to be in place before you can book?
You need a NetApp account, and it is not instant. NetApp says a new account takes 4 to 24 hours to create and asks you to set it up before you schedule. The NetApp account registration form is the starting point.
That account is also your exam login. Since 10 December 2024, CertMetrics, the system behind the Register button on the certification page, signs you in with your NetApp credentials.
The exam itself is delivered by Pearson VUE. On Pearson VUE's page for NetApp exams you can find a test center or read about online testing, and the exam list it links to shows the entry "NS0-165: NetApp Data ONTAP Administrator Exam."
How much experience and training does NetApp expect?
NetApp says candidates should have six to twelve months of experience with ONTAP solutions, including configuration, storage administration and data management. It adds a list of fundamentals: networking, cloud, virtualization, SAN and NAS concepts, a host operating system such as Windows or Linux, data protection and high availability.
No certification is required first. NetApp only suggests that you consider two associate accreditations, NetApp Cloud Native Associate and NetApp Hybrid Cloud Associate.
Training is where the days add up. NetApp's ONTAP Administrator learning path lists six instructor-led courses worth 168 training units, or up to 14 days in class:
- ONTAP Cluster Administration, 3 days
- ONTAP Data Protection Administration, 2 days
- ONTAP NFS Administration, 2 days
- ONTAP SMB Administration, 2 days
- ONTAP SAN Administration, 2 days
- ONTAP Performance Analysis, 3 days
Two free certification prep sessions sit at the end of that path, one of an hour and one of 25 minutes. If your budget is tight, start with those.
What do the eight NS0-165 domains cover?
They cover the daily work of an ONTAP administrator, from the hardware up to performance tuning. The domain list on NetApp's Data Administrator ONTAP certification page has eight domains and 24 topic lines:
- Storage Platforms (3 lines): physical systems, software-defined on-premises or cloud systems, and upgrading or scaling clusters.
- Core ONTAP (3 lines): system management, high availability and Storage Virtual Machine management.
- ONTAP Storage (2 lines): logical storage features and storage efficiency features.
- Networking (2 lines): network components and troubleshooting them.
- Storage Protocols and Connectivity (5 lines): SAN, NAS and ONTAP S3 solutions, with troubleshooting lines for SAN and NAS.
- Data Protection (3 lines): data protection solutions, business continuity concepts and troubleshooting.
- Security (4 lines): protocol security, hardening, encryption in flight or at rest, and anti-ransomware concepts.
- Performance (2 lines): performance monitoring and troubleshooting storage system performance.
Two things stand out. NetApp publishes no weight for any domain, so the line count is the only public hint of size, and domain five is the longest with five lines. Also, five of the 24 lines begin with the word troubleshoot. An exam written that way expects you to know what a broken setup looks like, not only how to build a working one.
How long is the exam, and what is the passing score?
NetApp's public certification page does not state a question count, a time limit or a passing score. The learning path lists the certification exam entry at 2 hours.
NWExam's NS0-165 syllabus page lists 60 questions, 90 minutes and a 64% passing score. The two time figures differ, so treat the confirmation you receive when you register as the final word, and plan your pacing for the shorter one.
What does a realistic NS0-165 budget look like?
Between $100 and $440, depending on vouchers, retakes and the optional accreditations. These are sums of NetApp's published prices, not quotes:
- Voucher route: $100, if you hold a 50% discount voucher and pass the first time.
- Straight route: $200, one attempt and a pass.
- With both suggested accreditations: $240, the exam plus two $20 accreditation exams.
- With one retake: $400, two attempts at the full fee.
- Accreditations plus one retake: $440.
Instructor-led courses are extra and are listed in training units, so ask your employer or NetApp partner what a unit costs you. The calendar has a floor as well. If you fail twice, the earliest third attempt is 14 days after the second.
What happens if you fail, and what happens after you pass?
A first failure costs you no waiting time, and a pass starts a 24-month clock. NetApp's retake and expiration policies set four of the six time rules in this post:
| Time rule | Length | When it applies |
|---|---|---|
| New NetApp account | 4 to 24 hours | Before you can schedule |
| Recommended ONTAP experience | 6 to 12 months | Before you sit the exam |
| Retake after a first failure | No wait | You can retake immediately |
| Retake after multiple failures | 14 days | After the second or any later failure |
| Certification active | 24 months | From the day you earn it |
| Retake of a passed exam | 12 months | You must wait a year to sit it again |
The policy page mentions no free retake, so budget the fee again for every attempt.
Renewal has a shortcut. The policy page says the NCDA credential renews automatically when you earn a linked higher-level credential, such as NCIE Data Protection, NCIE SAN ONTAP or NCIE MetroCluster, before your NCDA expires. It will not revive a certification that has already expired. The page still shows older exam codes in that paragraph, so check the current codes before you plan around it.
There is one more thing a pass gives you. NetApp issues its digital badges through Credly, which emails you a link to accept your first badge, so check the spam folder if nothing arrives. Your exam records and certification status stay in your CertMetrics account.
Is there a video on NCDA exam preparation?
NWExam has no NS0-165 video yet. This one was recorded for the previous exam version, NS0-164, and covers practice questions and study resources for the same credential.
How should you plan the spend?
Work backward from the day you want the result, and put the cheap steps first.
- Open the NetApp account today. It can take up to 24 hours, and nothing else can be booked without it.
- Mark the 24 topic lines. Put a tick next to each line you have done on a real or lab cluster. Circle the five troubleshooting lines you have not.
- Find the weak domains for free. The NS0-165 sample questions show how the domains turn into exam-style items, and a wrong answer tells you which line to study.
- Rehearse against the clock before you pay. If you are scoring well in a timed NCDA practice exam, the $200 is a safer bet.
- Book with the retake rule in mind. A first failure lets you rebook at once. A second one locks you out for 14 days, so leave room before any deadline your employer has set.
Frequently Asked Questions
1. How much does the NS0-165 exam cost?
NetApp's certification policy sets certification exams at $200.00 USD since 1 May 2025. NS0-165 is a certification exam, so it is $200. Accreditation exams are $20.
2. How long is the NCDA certification valid?
NetApp's expiration policy says certifications are active for 24 months once earned. A passed exam cannot be retaken for 12 months.
3. How soon can I retake NS0-165 after failing?
After a first failure you can retake the exam immediately. After multiple failures you must wait 14 days before each new attempt.
4. Is NS0-165 the same as NCDA?
NS0-165 is the exam code. NCDA stands for NetApp Certified Data Administrator, ONTAP, which is the certification you earn by passing it. Pearson VUE lists the exam as NS0-165: NetApp Data ONTAP Administrator Exam.
5. Are there prerequisites for the NS0-165 exam?
NetApp lists no required certification. It suggests considering two associate accreditations and recommends six to twelve months of experience with ONTAP solutions.
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