Operational Excellence and Resilience Questions

Design and operationalize systems and processes that deliver efficiency, cost effectiveness, and resilient service delivery. Cover approaches to cost optimization and right sizing, automation and self healing, monitoring and observability, service level objectives and agreements, incident response and disaster recovery planning, chaos engineering and resilience testing, capacity planning, and continuous improvement practices. Candidates should explain trade offs between cost and reliability, instrumentation and alerting strategies, and how to measure and improve operational maturity.

EasyTechnical

29 practiced

Describe the essential contents of a runbook for a critical online service intended for an on-call engineer unfamiliar with the internals. List the minimum sections (detection, immediate mitigation, diagnostics, escalation, rollback, contacts) and provide one example checklist entry for an outage caused by a sudden spike in 500 errors.

HardTechnical

42 practiced

You inherit a legacy monolith with no monitoring, frequent P2 incidents, and tight release cycles. Propose a prioritized 6-month plan to improve resilience that includes short-term quick wins and longer-term investments. Cover observability, automated testing and CI, safe deployment practices, runbooks, incident response, and measurable milestones at 1, 3, and 6 months.

EasyBehavioral

30 practiced

Explain what a blameless postmortem is and why organizations practice them. Describe the structure of an effective postmortem document and list three measurable action items (with owners and due dates) that should be produced from every postmortem.

HardTechnical

34 practiced

As incident commander during a major outage you must decide whether to rollback a recent deployment even though telemetry is incomplete. Describe a decision framework you would use: what signals to consider, how to assess rollback safety, rollback execution safeguards, stakeholder communications, and how to capture the decision and rationale for the post-incident review.

EasyTechnical

30 practiced

Describe the roles of logging, metrics, and distributed tracing in debugging a microservice-based user signup flow. For each signal provide one concrete example of the information it captures, and explain how the three signals together help pinpoint a failure that only occurs for a subset of users.

Unlock Full Question Bank

Get access to hundreds of Operational Excellence and Resilience interview questions and detailed answers.

Join thousands of developers preparing for their dream job.