DevOps Principles & CALMS

In the CALMS framework used in DevOps Foundation, what do the five letters stand for?

• A Collaboration, Agile, Lean, Metrics, Sharing
• B Continuous, Automation, Learning, Monitoring, Security
• C Culture, Agile, Logging, Measurement, Standardisation
• D Culture, Automation, Lean, Measurement, Sharing ✓

Answer: CALMS is an acronym for Culture, Automation, Lean, Measurement, and Sharing, representing the five core pillars of a successful DevOps adoption.

The 'First Way' of DevOps (Flow) primarily emphasises which of the following?

• A Creating a culture of continual experimentation and learning
• B Optimising the flow of work from development to operations to the customer ✓
• C Reducing the number of deployments to lower risk
• D Amplifying feedback loops from right to left

Answer: The First Way (Systems Thinking) focuses on the fast, left-to-right flow of work from Development through Operations to the customer, optimising the whole system rather than individual silos.

Which of the Three Ways is concerned with creating fast and constant feedback loops moving from right to left?

• A The Fourth Way
• B The First Way
• C The Second Way ✓
• D The Third Way

Answer: The Second Way (Amplify Feedback Loops) ensures fast, constant feedback flows from right to left at all stages of the value stream, enabling problems to be detected and corrected quickly.

The 'Third Way' of DevOps focuses on which cultural outcome?

• A Centralising all knowledge in a single team
• B A culture of continual experimentation, learning, and risk-taking ✓
• C Eliminating all manual testing
• D Strict change-approval boards for every release

Answer: The Third Way (Continual Learning and Experimentation) fosters a high-trust culture that values experimentation, learning from failure, and repetition of practice to achieve mastery.

Which statement best describes the relationship between DevOps and Agile?

• A DevOps applies only to operations, never to development
• B DevOps extends Agile principles beyond development to include operations and delivery ✓
• C DevOps replaces Agile entirely
• D Agile and DevOps are unrelated frameworks

Answer: DevOps builds on and extends Agile principles, carrying them beyond software development into deployment, operations, and the end-to-end delivery of value to customers.

In the CALMS model, what does the 'Sharing' pillar primarily promote?

• A Sharing customer data across all business units
• B Sharing source code only with external vendors
• C Sharing infrastructure costs between departments
• D Open sharing of knowledge, tools, and feedback across Dev and Ops teams ✓

Answer: The Sharing pillar promotes transparency and the open exchange of knowledge, responsibilities, tools, and feedback between Development and Operations, breaking down silos.