You can see it againUnder pressure people bring back shapes and positions long after the wording has gone.
Picture superiority · Shepard 1967, Standing 1973
ISTQBCertified Tester Quality in DevOps
The ISTQB Certified Tester Quality in DevOps (CT-QDO) certification equips testing and DevOps professionals with the skills to integrate quality assurance throughout the DevOps lifecycle. It validates your ability to apply proper quality and test activities to achieve the right quality level for your solutions. This certification establishes a common language for quality engineering across the entire DevOps team, aligning with the principle that quality is everyone's responsibility.
Exam formatMultiple choice
Duration60 minutes
DeliveryISTQB Member Boards
Passing score30 out of 45 points
Free questions577
Content last reviewed 30 July 2026 · Up to date
The certification
What Certified Tester Quality in DevOps 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.
4domains
22objectives
120concepts
What it is
What this certification is
What it validates, who it is written for, and the experience it assumes.
About this certification
The ISTQB Certified Tester Quality in DevOps (CT-QDO) certification is designed for professionals who work at the intersection of quality and DevOps. It provides a comprehensive understanding of how quality assurance and testing are integrated into DevOps practices, from continuous delivery to automated testing. The certification emphasizes that quality engineering is a shared responsibility across the entire DevOps team, not just the tester's.
By earning this certification, you demonstrate your ability to contribute to all value stream stages, implement automated and manual testing in DevOps teams, and select the right tools and practices to support quality within your organization. The syllabus covers fundamentals of DevOps, QA within DevOps, implementing DevOps in an organization, and the DevOps loop implementation, among other key topics. This certification is ideal for testers, test analysts, test engineers, test automation engineers, test managers, quality leads, software developers, DevOps engineers, site reliability engineers, operations engineers, scrum masters, and product owners.
Who it’s for
This certification is for anyone involved in software development based on DevOps who needs to apply proper quality and test activities to achieve the right quality level for their solutions. It is particularly valuable for professionals at the intersection of quality and DevOps, including testers, test analysts, test engineers, test automation engineers, test managers, quality leads, software developers, DevOps engineers, site reliability engineers, operations engineers, scrum masters, and product owners. The certification establishes a common language and methodology for quality engineering across the entire DevOps team, aligning with the DevOps principle that quality is everyone's responsibility, not just the tester's.
Recommended experience
While not mandatory, ISTQB recommends attending accredited training to ensure materials are assessed for relevance and consistency against the syllabus. Self-study using the syllabus and recommended reading is also an option. Attend accredited training from an ISTQB Member Board assessed training provider; Self-study using the CT-QDO Syllabus v1.0 and recommended reading
The syllabus
What you’ll learn
Every domain and objective ISTQB measures, with the weight they carry on the exam.
The official ISTQB exam outline · checked 30 July 2026 · See the source
Domain 1: Fundamentals of DevOps
- Key Concepts of DevOps
- Breaking the Wall of Confusion
- DORA's Performance Metrics
- Elements of CALMS in the Context of QA
- The Three Ways of DevOps
- Benefits, Risks, and Pitfalls of DevOps
- Roles in a DevOps Team
- Site Reliability Engineering (SRE)
- DevOps Team Patterns and Anti-patterns
Domain 2: Quality Assurance (QA) and Testing in DevOps
- QA and Testing in DevOps Context
- Continuous Testing and Feedback
- QA in CI/CD Pipeline
- Pipeline Implementation and Quality Gates
Domain 3: Automated and Manual Tasks in DevOps
- Testware Management and Traceability
- Automation in CI/CD
- API Testing
- Manual and Exploratory Testing
- Crowd Testing and Quality Hunting
Domain 4: Tools and Practices in DevOps
- Tooling and Automation
- Release and Deployment Strategies
- Infrastructure and Reliability Engineering
- Observability and Compliance
On the day
The exam itself
Everything ISTQB publishes about sitting it, and nothing we inferred.
Prerequisites
Hold the ISTQB Certified Tester Foundation Level (CTFL) v4.0 or previous versions.
CertificationCertified Tester Quality in DevOps
Exam formatMultiple choice
Duration60 minutes
Questions40 questions
Passing score30 out of 45 points
DeliveryISTQB Member Boards
LanguagesEnglish, Non-native language support with +25% time
After you pass
Where this credential goes next
The path ISTQB lays out, how the credential is kept, and where to book.
Step-by-step path to Certified Tester Quality in DevOps
PrerequisiteHold the ISTQB Certified Tester Foundation Level (CTFL) v4.0 or previous versions.
Credential earnedCertified Tester Quality in DevOps Certification Renewal and maintenance
ISTQB certifications do not require renewal except for Expert Level. The CT-QDO certification does not require renewal. Stay current with the latest technologies and maintain your certification.
Learn more about renewal requirements Lifecycle status
This certification is currently active and available. ISTQB maintains this certification to validate current skills and industry relevance.
Exam status: ActiveMaintained by ISTQB
Exam registration
Register for the exam through ISTQB Member Boards, ISTQB’s authorized testing partner.
Schedule your examVisit the official ISTQB 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 CT-QDO relate to the retired CT-CD (Certified Tester – DevOps) certification?
CT-QDO is the current certification for quality in DevOps, replacing the earlier CT-CD. The CT-QDO syllabus v1.0 reflects the latest DevOps practices and is the version currently offered.
Is the CTFL prerequisite mandatory for CT-QDO?
Yes, you must hold the ISTQB Certified Tester Foundation Level (CTFL) v4.0 or a previous version before taking the CT-QDO exam.
Can I take the CT-QDO exam without attending accredited training?
Yes, self-study using the official syllabus and recommended reading is an option. However, ISTQB highly recommends accredited training to ensure materials are assessed for relevance and consistency.
What is the exam format for CT-QDO?
The CT-QDO exam consists of 40 multiple-choice questions. You have 60 minutes to complete it, with an additional 25% time if you are a non-native English speaker.
What job roles does the CT-QDO certification map to?
CT-QDO is designed for testers, test analysts, test engineers, test automation engineers, test managers, quality leads, software developers, DevOps engineers, site reliability engineers, operations engineers, scrum masters, and product owners.
Are there any hands-on or lab components in the CT-QDO exam?
No, the CT-QDO exam is a multiple-choice exam. There are no hands-on or lab components.
How soon will I receive my CT-QDO exam results?
ISTQB exam providers typically provide results immediately after the exam. Check with your specific exam provider for details.
Can I recertify by passing a different ISTQB exam?
ISTQB certifications do not require renewal except for Expert Level. CT-QDO does not require recertification.
Information freshness · Content last reviewed on 2026-07-30 Up to date
Practice free questions 577 questions, free, no account needed.
The curriculum
The whole exam, mapped and written
Every domain, every objective, and every concept ISTQB measures — each one written out.
4domains
22objectives
120concepts
124free 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 ISTQB exam outline · checked 30 July 2026 · See the source
1Domain 1: Fundamentals of DevOps223 questions
Key Concepts of DevOps5 concepts · 6 pagesOpen →Breaking the Wall of Confusion5 concepts · 6 pagesOpen →DORA's Performance Metrics6 concepts · 5 pagesOpen →Elements of CALMS in the Context of QA7 concepts · 7 pagesOpen →The Three Ways of DevOps4 concepts · 6 pagesOpen →Benefits, Risks, and Pitfalls of DevOps3 concepts · 5 pagesOpen →Roles in a DevOps Team4 concepts · 5 pagesOpen →Site Reliability Engineering (SRE)5 concepts · 4 pagesOpen →DevOps Team Patterns and Anti-patterns4 concepts · 5 pagesOpen →
2Domain 2: Quality Assurance (QA) and Testing in DevOps124 questions
3Domain 3: Automated and Manual Tasks in DevOps120 questions
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.
Key Concepts of DevOps6 pagesOpen →
Free in front of it
26 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
577 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.
577questions
124pages
22objectives
Freealways
Browse by domain
Every objective, and every page range, is a link — so you can pick up exactly where you left off.
1Domain 1: Fundamentals of DevOps223 questions
2Domain 2: Quality Assurance (QA) and Testing in DevOps124 questions
3Domain 3: Automated and Manual Tasks in DevOps120 questions
4Domain 4: Tools and Practices in DevOps110 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.
120concepts
577free 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 ISTQB
Where the exam is defined, scheduled and scored.
4official links
120concepts mapped
The source
ISTQB’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 ISTQB outline already has questions here
We build from the official skills outline, not from a summary of it — 22 objectives, 120 concepts written under them, and free questions against every one. When ISTQB changes the outline, this page changes with it.
22objectives on the outline→120concepts written→577free 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.