AWS Interview Questions
6 questions
You inherit an EC2 workload that authenticates to AWS using an IAM user with AdministratorAccess. How would you migrate it to least-privilege access without causing an outage?
AdvancedAWSIAMEC212 min
A Lambda function times out for about 2% of invocations, seemingly at random, but works fine when you test it manually. How would you track down the cause?
IntermediateAWSLambda10 min
A security scanner just flagged one of your production S3 buckets as publicly readable. Walk through how you'd respond in the first hour and prevent a repeat.
AdvancedAWSS3Security10 min
What's the actual difference between designing for high availability across Availability Zones versus across Regions, and when do you actually need multi-region instead of just multi-AZ?
AdvancedAWS8 min
Design a migration from long-lived AWS access keys stored as GitHub Actions secrets to OIDC-based short-lived credentials, for an organization with 40 repositories deploying to production.
AdvancedGitHub ActionsAWSOIDC12 min
terraform plan shows a production RDS instance will be destroyed and recreated after a change you thought was trivial. What would you investigate before running apply?
AdvancedTerraformAWS10 min