Certified Tester Quality in DevOps
Domain 1Objective 3
DORA's Performance Metrics CT-QDO Practice Questions (Page 5)
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 21–24
- 21
A team has a deployment frequency of 10 per day, lead time for changes of 30 minutes, change failure rate of 5%, and time to restore service of 2 hours. They are considering two initiatives: (1) increasing deployment frequency to 20 per day, and (2) reducing time to restore service to 30 minutes. Which initiative would have the most positive impact on their overall DORA performance?
Select an answer first - 22
A team's lead time for changes is 2 weeks. They want to reduce it. Which practice would most directly help?
Select an answer first - 23
Which statement best defines lead time for changes?
Select an answer first - 24
A team made 20 deployments to production last month, and 2 of them caused a service outage. What is the change failure rate?
Select an answer first
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