A team has a change failure rate of 20%. They want to reduce it. Which practice would be most effective?

Reducing the number of deployments

Increasing the time to restore service

Increasing deployment frequency

Implementing test-driven development (TDD)

A team has a deployment frequency of 5 per day, lead time for changes of 1 hour, change failure rate of 30%, and time to restore service of 30 minutes. They want to improve their DORA performance. Which action would have the most positive impact on their overall performance?

Implementing a canary release strategy

Increasing deployment frequency to 10 per day

Reducing lead time to 30 minutes

Increasing time to restore service

A team experiences a production incident. They want to improve their time to restore service. Which practice would most directly help?

Increasing the number of manual steps in the recovery process

Reducing the number of monitoring alerts

Delaying incident response until business hours

Implementing automated rollback capabilities

A team deploys to production every Monday. They want to increase their deployment frequency. Which change would be most effective?

Breaking down features into smaller, independently deployable units

Deploying only when a large number of features are ready

Batching all changes into a single weekly release

Increasing the number of manual approval steps

A team wants to increase their deployment frequency. Which practice would most directly help them achieve this?

Reducing the number of developers on the team

Increasing the number of code reviews

Automating the deployment pipeline

Adding more features per deployment

Certified Tester Quality in DevOps

Domain 1Objective 3

DORA's Performance Metrics CT-QDO Practice Questions (Page 4)

Part of the Domain 1: Fundamentals of DevOps domain, which makes up ~39% of our current practice bank. ISTQB does not publish an official question count, but from its 60-minute exam (~25–40 total, ~10–16 in this domain), expect 1–2 from this objective — we provide 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

6concepts

Questions 16–20

16application · medium
A team has a change failure rate of 20%. They want to reduce it. Which practice would be most effective?
Select an answer first
17expert · hard
A team has a deployment frequency of 5 per day, lead time for changes of 1 hour, change failure rate of 30%, and time to restore service of 30 minutes. They want to improve their DORA performance. Which action would have the most positive impact on their overall performance?
Select an answer first
18application · medium
A team experiences a production incident. They want to improve their time to restore service. Which practice would most directly help?
Select an answer first
19application · medium
A team deploys to production every Monday. They want to increase their deployment frequency. Which change would be most effective?
Select an answer first
20application · medium
A team wants to increase their deployment frequency. Which practice would most directly help them achieve this?
Select an answer first

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