You can see it againUnder pressure people bring back shapes and positions long after the wording has gone.
Picture superiority · Shepard 1967, Standing 1973
DELL TECHNOLOGIESDell Unity Operate
The Dell Unity Operate certification validates your ability to manage, monitor, and maintain Dell Unity, Unity XT, and UnityVSA storage systems in production environments. It is designed for storage administrators and implementation engineers who provision block and file storage, configure data protection, and ensure the availability and performance of business-critical workloads. Earning this credential demonstrates that you can operate Dell Unity solutions with confidence and best practices.
Exam formatProctored exam
DeliveryPearson VUE
Free questions477
Content last reviewed 30 July 2026 · Up to date
The certification
What Dell Unity Operate proves, and what it asks of you
What this certification covers, who it is written for, and what the exam itself looks like on the day.
5domains
24objectives
146concepts
What it is
What this certification is
What it validates, who it is written for, and the experience it assumes.
About this certification
The Dell Unity Operate certification validates the skills required to manage Dell Unity systems in a production environment and provision storage according to business needs. This includes configuration tasks consistent with the ongoing management of Dell Unity systems, as well as basic integration topics. The exam covers platform architecture, system administration, storage provisioning, data protection, and mobility features.
By earning this certification, you demonstrate that you can administer block and file storage resources, manage host connectivity, configure snapshots and replication, and perform routine operational tasks. You also show a solid understanding of Dell Unity concepts, terminology, and best practices, positioning yourself as a trusted storage professional who can ensure the availability, performance, and data protection of business-critical workloads.
Who it’s for
This certification is for storage administrators, implementation engineers, systems engineers, technical support professionals, and pre-sales engineers who manage Dell Unity storage systems in production environments. It is also relevant for IT operations staff and field service technicians responsible for the day-to-day operation and maintenance of Dell Unity solutions. Candidates are expected to have foundational IT infrastructure and storage administration experience, including basic virtualization and SAN knowledge, along with familiarity with the Dell Unity operating environment.
Recommended experience
Foundational IT infrastructure and storage administration experience, including basic virtualization and SAN knowledge, and familiarity with the Dell Unity operating environment. Experience managing storage systems in a production environment; Basic understanding of block and file storage concepts; Familiarity with VMware environments and host connectivity; Knowledge of data protection features such as snapshots and replication
The syllabus
What you’ll learn
Every domain and objective Dell Technologies measures, with the weight they carry on the exam.
The official Dell Technologies exam outline · checked 30 July 2026 · See the source
Dell Unity Platform Concepts, Features, and Architecture
- Describe the Dell Unity platform architecture, features, and functions
- Describe the Dell UnityVSA software defined storage solution
- Identify the Dell Unity XT hardware components
Dell Unity XT and UnityVSA System Administration
- Identify and describe the user interfaces for monitoring and managing the Dell Unity family of storage systems
- Manage the Dell Unity XT support and basic system settings for system administration
Dell Unity XT and UnityVSA Storage Provisioning and Access
- Describe dynamic and traditional storage pools and how they are provisioned
- Describe dynamic pool expansion, considerations for mixing drive sizes and the rebuild process
- Manage block, file and VMware datastore storage
- Manage host access to block storage resources
- Manage NAS client access to SMB and NFS file storage resources
- Manage VMware ESXi hosts to access VMware datastore storage resources
Storage Efficiency, Scalability, and Performance Features
- Describe and manage FAST Cache
- Describe and manage Host I/O limits
- Describe and manage File Level Retention
- Describe the UFS64 file system scalability feature and manage the File System Quotas feature
- Describe and manage Data Reduction
- Describe and manage FAST VP
- Describe and manage Thin Clones
Data Protection and Mobility
- Describe and manage the Local Lun Move and Local NAS Server mobility features
- Describe the Snapshots data protection feature and snapshot creation
- Perform snapshot operations on storage resources
- Descibe the Replication data protection feature
- Create synchronous and asynchronous replication sessions for storage resources
- Describe and perform synchronous and asynchronous replication operations
On the day
The exam itself
Everything Dell Technologies publishes about sitting it, and nothing we inferred.
Prerequisites
No mandatory prerequisites — this certification has no required predecessor exam or credential.
CertificationDell Unity Operate
Exam formatProctored exam
DeliveryPearson VUE
LanguagesEnglish, French
After you pass
Where this credential goes next
The path Dell Technologies lays out, how the credential is kept, and where to book.
Step-by-step path to Dell Unity Operate
Credential earnedDell Unity Operate Certification Lifecycle status
This certification is currently active and available. Dell Technologies maintains this certification to validate current skills and industry relevance.
Exam status: ActiveMaintained by Dell Technologies
Exam registration
Register for the exam through Pearson VUE, Dell Technologies’s authorized testing partner.
Schedule your examVisit the official Dell Technologies certification page for exam policies and requirements.
View the official pageYour coach
And when you are serious, your coach Pip takes over
Your coach in the app reads what you have answered with the book closed and tells you one thing to do tonight. It will not count an answer you gave with the page open, and it will tell you when you are not ready.
See how the coach worksBefore you book
Questions people ask
How does the D-UN-OE-23 exam relate to the upcoming D-UN-OE-01 version?
The D-UN-OE-23 exam will be retired on August 20, 2026, and an updated version, D-UN-OE-01, will be available beginning August 21, 2026. Candidates must complete scheduling and delivery for D-UN-OE-23 before its retirement date.
Is there a hands-on or lab component in the Dell Unity Operate exam?
The official exam description does not specify a hands-on or lab component. The exam is a proctored skills certification exam administered through Pearson VUE testing centers and OnVUE online proctoring.
What is the retake policy for the Dell Unity Operate exam?
If you do not pass on your first attempt, you must wait 7 days to retake the exam. After a second failed attempt, you must wait at least 14 days between each additional attempt. If you need to retake an exam you have already passed to fulfill a certification track requirement, you may do so after 3 months.
How soon will I receive my exam results?
All exams are computer scored immediately upon completion, and candidates receive a provisional score report at the test center. The final score is transmitted to your CertTracker account within 72 hours after statistical analysis is conducted.
What job roles does the Dell Unity Operate certification map to?
This certification is designed for implementation specialists, infrastructure administrators, pre-sales engineers, product specialists, storage administrators, storage architects, storage implementation engineers, systems engineers, and technical support professionals.
Can I take the Dell Unity Operate exam online?
Yes, the exam is available via Pearson VUE's OnVUE online proctoring as well as at Pearson testing centers. Online proctoring requires a compatible computer and a quiet, private environment.
Are there any testing accommodations available for candidates with disabilities?
Yes, Dell Technologies and Pearson VUE provide testing accommodations for candidates with disabilities. You can request an accommodation through the Pearson VUE test accommodations process.
Information freshness · Content last reviewed on 2026-07-30 Up to date
Practice free questions 477 questions, free, no account needed.
The curriculum
The whole exam, mapped and written
Every domain, every objective, and every concept Dell Technologies measures — each one written out.
5domains
24objectives
146concepts
106free pages
The domains, and what sits inside them
Every objective below is a page you can open and practise now, without an account.
The official Dell Technologies exam outline · checked 30 July 2026 · See the source
1Dell Unity Platform Concepts, Features, and Architecture53 questions
2Dell Unity XT and UnityVSA System Administration48 questions
3Dell Unity XT and UnityVSA Storage Provisioning and Access108 questions
Describe dynamic and traditional storage pools and how they are provisioned7 concepts · 4 pagesOpen →Describe dynamic pool expansion, considerations for mixing drive sizes and the rebuild process3 concepts · 2 pagesOpen →Manage block, file and VMware datastore storage5 concepts · 3 pagesOpen →Manage host access to block storage resources6 concepts · 6 pagesOpen →Manage NAS client access to SMB and NFS file storage resources6 concepts · 4 pagesOpen →Manage VMware ESXi hosts to access VMware datastore storage resources8 concepts · 5 pagesOpen →
4Storage Efficiency, Scalability, and Performance Features138 questions
Describe and manage FAST Cache5 concepts · 5 pagesOpen →Describe and manage Host I/O limits5 concepts · 4 pagesOpen →Describe and manage File Level Retention6 concepts · 5 pagesOpen →Describe the UFS64 file system scalability feature and manage the File System Quotas feature5 concepts · 5 pagesOpen →Describe and manage Data Reduction10 concepts · 5 pagesOpen →Describe and manage FAST VP5 concepts · 3 pagesOpen →Describe and manage Thin Clones5 concepts · 4 pagesOpen →
5Data Protection and Mobility130 questions
Describe and manage the Local Lun Move and Local NAS Server mobility features8 concepts · 5 pagesOpen →Describe the Snapshots data protection feature and snapshot creation5 concepts · 5 pagesOpen →Perform snapshot operations on storage resources9 concepts · 3 pagesOpen →Descibe the Replication data protection feature8 concepts · 5 pagesOpen →Create synchronous and asynchronous replication sessions for storage resources8 concepts · 5 pagesOpen →Describe and perform synchronous and asynchronous replication operations8 concepts · 5 pagesOpen →
Not a table of contents
Every line on this map already opens
In front of every objective the practice pages are already there, free and without an account. This is one objective, opened.
Describe the Dell Unity platform architecture, features, and functions4 pagesOpen →
Free in front of it
19 questions on this objective, five to a page. Every range above is a real page, open now, with no account.
Reading the map is not the same as knowing the ground
The curriculum tells you what is on the exam. Proving you know it is a different job — and it is the one the closed-book run does.
Free questions
477 questions. No account, no card.
The whole bank is open. 5 questions to a page, every answer explained, and a discussion thread on each one.
477questions
106pages
24objectives
Freealways
Start anywhereDescribe the Dell Unity platform architecture, features, and functions 19 questions · 4 pages
Browse by domain
Every objective, and every page range, is a link — so you can pick up exactly where you left off.
1Dell Unity Platform Concepts, Features, and Architecture53 questions
2Dell Unity XT and UnityVSA System Administration48 questions
3Dell Unity XT and UnityVSA Storage Provisioning and Access108 questions
4Storage Efficiency, Scalability, and Performance Features138 questions
5Data Protection and Mobility130 questions
What a practice page gives you
1Five to a page
Short enough to finish, long enough to matter.
2Every answer explained
Not only which one is right — why the others are wrong.
3A discussion on each
Ask, answer, and vote. Every question has its own thread.
A question, and the idea behind it
Every question comes from a concept
These are not trivia. Each one is written against a concept in the book, so when you get one wrong there is somewhere to go and find out why.
The visual book
See it once. Carry it into the exam.
The pages shown here come from our AI-900 book — an example of how each concept is written in plain language and, where the idea needs one, drawn as a full page you can take in at a glance.
146concepts
477free questions
Why a picture, and not another paragraph
Three reasons, and each one is a real finding rather than a slogan.
You can see it againThe whole idea at onceWhere it starts, what happens in the middle, what comes out, and the mistake to avoid.
Multimedia principle · MayerThe look-alikes sit togetherThe pairs the exam tests are drawn side by side, so the difference is seen, not told.
Dual coding · PaivioWhat one page is made of
You are never asked to read a poster here — only to see how one is built. After that, every other page is legible at a glance.
1A numbered strip on top
The idea as a sequence, followed with a finger before a word is read.
2Panels for the parts
What it is, how the machine learns it, when it is the right tool.
3The trap, framed
The distinction the exam tests, given its own box instead of buried in prose.
4One line at the bottom
The sentence to carry into the exam room.
Open book, on purpose
Answer it with the picture beside you
This is the part that teaches. The illustration and the written explanation stay where they are while you work, so a scenario stops being a memory test and becomes something you can simply look at.
It teaches · it does not count
A smartphone uses AI to unlock when the owner looks at the camera. Which AI capability is being used?
AImage classification
BFacial recognition
COptical character recognition
DObject detection
Look at the five steps. Detect finds a face, align straightens it, encode turns it into numbers, search compares it with a stored face, and decide answers one question: is this the same person? Classification would only say “a face”. Detection would only draw a box. Neither decides whose.
Then the page shuts, and it starts counting
The same questions come back with the book closed — that run is the one that counts. After it, your coach picks one thing for tonight, sized to the time you have, and brings pages back before you lose them.
Testing effect · Roediger & Karpicke 2006 · spacing effect · Cepeda et al. 2006
Official resources
Straight from Dell Technologies
Where the exam is defined, scheduled and scored.
4official links
146concepts mapped
The source
Dell Technologies’s own pages
We link to them rather than repeat them, so nothing here goes stale behind them.
Checked against the source
Every objective on the official Dell Technologies outline already has questions here
We build from the official skills outline, not from a summary of it — 24 objectives, 146 concepts written under them, and free questions against every one. When Dell Technologies changes the outline, this page changes with it.
24objectives on the outline→146concepts written→477free questions
An official page tells you what will be asked. It cannot tell you what you will get right.
That is the only question worth answering the night before, and no link answers it. You answer it by taking the questions with the book closed, and seeing what comes back.