PROFESSIONAL-CLOUD-DEVOPS-ENGINEER Question #89: Real Exam Question with Answer & Explanation

Question

Your CTO has asked you to implement a postmortem policy on every incident for internal use. You want to define what a good postmortem is to ensure that the policy is successful at your company. What should you do? (Choose two.)

Options

• AEnsure that all postmortems include what caused the incident, identify the person or team
• BEnsure that all postmortems include what caused the incident, how the incident could have been
• CEnsure that all postmortems include the severity of the incident, how to prevent a future
• DEnsure that all postmortems include how the incident was resolved and what caused the incident
• EEnsure that all postmortems include all incident participants in postmortem authoring and share

Explanation

A successful postmortem policy requires that postmortems clearly define incident severity and focus on prevention, and involve all participants in authoring and sharing to foster learning.

Common mistakes.

• A. While understanding the cause is essential, a good postmortem should focus on systemic failures and prevention, not identifying a specific 'person or team' responsible, as this goes against the blame-free culture of SRE postmortems.
• B. Identifying how the incident could have been prevented is valuable, but explicitly identifying a specific 'person or team' responsible for the incident is counterproductive to a blame-free postmortem culture and organizational learning.
• D. Including how the incident was resolved and what caused it is necessary, but this option omits critical elements like comprehensive prevention steps and broad stakeholder involvement, which are vital for a successful postmortem policy that drives improvement and learning.

Concept tested. SRE incident postmortem best practices

Reference. https://sre.google/sre-book/postmortem-culture/

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