Conceptual Interview Questions — All Categories
166 questions across 34 categories
The underlying mechanisms and trade-offs interviewers expect you to actually understand, not just recite.
How does the approach to workload identity and least privilege differ if a workload runs on ECS or Lambda instead of EC2?
IntermediateAWSECSLambda7 min
How does AWS Lambda's execution environment reuse actually work, and why does that make cold starts disproportionately affect low-traffic or bursty functions?
IntermediateAWSLambda7 min
Why does Lambda initialization code placed outside the handler function only run once per environment, and how would you use that intentionally?
IntermediateAWSLambda6 min
What's the cost/latency trade-off of using Provisioned Concurrency versus just increasing a Lambda function's timeout to absorb cold starts?
IntermediateAWSLambda6 min
How does Provisioned Concurrency eliminate Lambda cold starts on demand, and what does that actually cost?
IntermediateAWSLambda6 min
What's the difference between S3 Block Public Access and a restrictive bucket policy, and why is Block Public Access the stronger tool during an active exposure incident?
IntermediateAWSS36 min
What's the difference between S3's 'block public ACLs' and 'restrict public buckets' as individual Block Public Access settings?
IntermediateAWSS36 min
Why might an organization choose not to enable account-level S3 Block Public Access by default, and what legitimate use case would that block?
IntermediateAWSS36 min