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Timed mock tests and model answers written by working engineers, for every level from fresher to lead. Pick any of our 75 courses below.

Topic: AWS Cloud. Questions are shared by related courses. View the Cloud computing using Aws Workshop course → · Follow the AWS Cloud Engineer roadmap and salary guide →

All Cloud computing using Aws Workshop interview questions at a glance+

Fresher (0–3 years): Cloud / AWS Associate

  1. Explain the difference between S3, EBS and EFS.
  2. What is the AWS shared responsibility model?
  3. How would you host a simple static website on AWS?
  4. Explain Regions and Availability Zones. Why do they matter?
  5. Which AWS service manages users, groups, roles and permissions?
  6. Which AWS service is object storage?
  7. What is an EC2 instance?
  8. An Availability Zone is…
  9. What does an Amazon VPC give you?
  10. Under the shared responsibility model, who patches the guest operating system on EC2?
  11. Which service collects metrics and triggers alarms?
  12. Which storage is a block volume attached to an EC2 instance?

Mid-level (3–8 years): Cloud Engineer

  1. Design a highly available three-tier web application on AWS.
  2. An EC2 instance in a private subnet cannot reach the internet. How do you troubleshoot?
  3. How do you secure a new AWS account from day one?
  4. When would you choose Lambda, ECS/Fargate or EC2?
  5. What is the best way to make a web tier highly available?
  6. Instances in a private subnet must download OS patches from the internet. What do you add?
  7. What is the most secure way for an app on EC2 to read from S3?
  8. What does RDS Multi-AZ mainly provide?
  9. How do security groups and network ACLs differ?
  10. You need to know who deleted an S3 bucket yesterday. Where do you look?
  11. Traffic spikes cause dropped orders. How do you decouple order processing?
  12. How do you cut cost for EC2 that runs 24×7 for the next 1–3 years?

Experienced (8–15 years): Senior Cloud Engineer / Architect

  1. Design a multi-account AWS landing zone.
  2. How would you plan disaster recovery for a critical application?
  3. How would you reduce a growing AWS bill by 30% without hurting reliability?
  4. Production went down because a certificate expired. How do you stop it happening again?
  5. RPO of minutes and RTO under an hour for a regional outage, at moderate cost, suggests…
  6. How do you ensure no account in the organisation can turn off CloudTrail?
  7. Connect 40 VPCs and an on-premises network with central routing.
  8. How do you attribute cost per team accurately?
  9. A DynamoDB table is throttling on a hot partition. What is the best fix?
  10. Data must be encrypted with customer-managed keys, with rotation and audit.
  11. Which Well-Architected pillar covers recovering from failure and scaling with demand?
  12. What is the safest way to roll out a security baseline to 100 accounts?