KCNA Cloud Native Application Delivery Practice Question
Which DORA metric measures the percentage of deployments that cause a failure in production?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Change failure rate
Change failure rate is the percentage of deployments that result in degraded service or require remediation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Lead time for changes
Why it's wrong here
Lead time measures time from commit to production.
- ✗
Mean time to recover (MTTR)
Why it's wrong here
MTTR measures time to recover from a failure.
- ✓
Change failure rate
Why this is correct
Change failure rate is the percentage of deployments causing failure.
- ✗
Deployment frequency
Why it's wrong here
Deployment frequency measures how often deployments occur.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This KCNA practice question is part of Courseiva's free CNCF certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the KCNA exam.