DOL DevOps Principles 2

Question 1

Which DevOps principle directly addresses the problem of 'it works on my machine' syndrome?

Accepted Answer

Environment parity

Answer

Continuous monitoring

Answer

Feature branching

Answer

Manual change approvals

Question 2

A DevOps team notices that deployments are consistently failing on Fridays. According to DevOps principles, what is the BEST corrective action?

Accepted Answer

Increase deployment frequency and fix the pipeline

Answer

Ban Friday deployments

Answer

Require manager approval for Friday changes

Answer

Roll back all Friday releases automatically

Question 3

What does the DevOps concept of 'shifting left' primarily mean?

Accepted Answer

Performing testing and security checks earlier in the development lifecycle

Answer

Moving deployments to earlier in the day

Answer

Reducing the number of production environments

Answer

Prioritizing left-side backlog items first

Question 4

In DevOps, what is the primary purpose of a 'post-mortem' after an incident?

Accepted Answer

Documenting systemic improvements to prevent recurrence

Answer

Assigning blame to responsible team members

Answer

Generating a report for executive leadership

Answer

Determining SLA penalty payments

Question 5

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

Accepted Answer

Mean time to restore (MTTR)

Answer

Deployment frequency

Answer

Lead time for changes

Answer

Change failure rate

Question 6

A company practices 'you build it, you run it.' Which DevOps principle does this BEST exemplify?

Accepted Answer

Shared responsibility and ownership

Answer

Continuous integration

Answer

Infrastructure as code

Answer

Value stream mapping

Question 7

What is the key difference between 'continuous delivery' and 'continuous deployment'?

Accepted Answer

Continuous delivery keeps software release-ready but requires a manual trigger; continuous deployment releases automatically

Answer

Continuous delivery requires automated testing; continuous deployment does not

Answer

Continuous deployment always includes manual approval; delivery does not

Answer

Continuous delivery deploys to production; deployment only deploys to staging