Release Engineering

All interview questions related to Release Engineering

4 Questions

4 Categories

1 Beginner2 Intermediate1 Advanced

Annotated vs Lightweight Git Tags

Beginner

What is the difference between an annotated tag and a lightweight tag in Git, and when would you choose each?

2 min•Phone

Blue-Green vs Canary Deployments with Feature Flags

Advanced

Compare blue-green and canary deployments. How would you integrate feature flags to reduce risk during production rollouts?

5 min•Technical

Design a Feature Flag Service

Intermediate

Design a low-latency feature flag platform with targeting rules, audit logs, and mobile/edge delivery.

30 min•System-Design

Clients Using Stale DNS Cache

Intermediate

Canary rollout passed, but a portion of clients hit decommissioned IPs due to stale DNS caches. What do you do?

10 min•Scenario