CDM DevOps Principles & Culture 2

Question 1

Which DevOps concept describes the practice of making small, incremental changes to reduce deployment risk?

Accepted Answer

Continuous delivery

Answer

Continuous delivery reduces risk by enabling small, frequent, automated deployments to production.

Question 2

The 'Three Ways' of DevOps were popularized by which book?

Accepted Answer

The Phoenix Project

Answer

The Phoenix Project by Gene Kim introduced the Three Ways: Flow, Feedback, and Continual Learning.

Question 3

In DevOps culture, what does 'psychological safety' enable team members to do?

Accepted Answer

Report failures and experiments without fear of blame

Answer

Psychological safety allows team members to surface problems, admit mistakes, and experiment without fear of punishment.

Question 4

Which metric from the DORA research directly measures how quickly a team can recover from a production failure?

Accepted Answer

Mean time to restore (MTTR)

Answer

MTTR (Mean Time to Restore) measures the time from a failure occurring to service being restored.

Question 5

A 'value stream' in DevOps refers to which of the following?

Accepted Answer

The sequence of steps to deliver value from idea to customer

Answer

A value stream maps all steps — including wait times — from customer request to delivery of working software.

(CDM) Certified DevOps Master Practice Test