Top 50 AWS DevOps Interview Questions for Freshers Latest 2025 Edition
By Cloud Softsol Team
Website: www.cloudsoftsol.com
Category: AWS DevOps, Cloud Careers, Interview Preparation
Audience: Freshers, Entry-Level DevOps Engineers, Cloud Beginners
Introduction
In 2025, AWS DevOps continues to be one of the highest-paying and fastest-growing IT career paths. Companies are actively hiring freshers who understand cloud fundamentals, automation, CI/CD pipelines, containers, and Infrastructure as Code.
At Cloud Softsol, we help freshers and career switchers crack AWS DevOps interviews with industry-relevant training and real-time projects.
This article covers the Top 50 AWS DevOps Interview Questions for Freshers (2025 Edition), explained in simple, interview-friendly language.
Section 1: AWS Basics (1–10)
1. What is AWS?
AWS (Amazon Web Services) is a cloud computing platform that provides on-demand services like compute, storage, networking, databases, DevOps tools, and security.
2. What is DevOps?
DevOps is a combination of Development and Operations that focuses on faster software delivery through automation, collaboration, CI/CD, and monitoring.
3. Why is AWS widely used for DevOps?
AWS offers fully managed DevOps services such as:
- AWS CodeCommit
- AWS CodeBuild
- AWS CodeDeploy
- AWS CodePipeline
- AWS CloudFormation
4. What are the key AWS services used in DevOps?
- EC2
- S3
- IAM
- CloudWatch
- CloudFormation
- ECR
- ECS / EKS
5. What is Amazon EC2?
EC2 (Elastic Compute Cloud) provides scalable virtual machines to run applications in the cloud.
6. What is Amazon S3?
S3 is an object storage service used for storing artifacts, backups, logs, and static website files.
7. What is IAM?
IAM (Identity and Access Management) manages users, roles, policies, and permissions in AWS.
8. What is the AWS Shared Responsibility Model?
AWS is responsible for cloud infrastructure, while customers are responsible for applications, data, OS, and configurations.
9. What is an Availability Zone?
An Availability Zone (AZ) is an isolated data center within a region to ensure high availability.
10. Difference between Region and Availability Zone?
- Region: Geographic location
- AZ: Independent data centers inside a region
Section 2: DevOps & CI/CD (11–20)
11. What is CI/CD?
CI/CD stands for Continuous Integration and Continuous Delivery/Deployment, automating build, test, and deployment processes.
12. What CI/CD tools are used with AWS?
- AWS CodePipeline
- Jenkins
- GitHub Actions
- GitLab CI/CD
13. What is AWS CodePipeline?
A fully managed CI/CD service that automates release pipelines.
14. What is AWS CodeBuild?
CodeBuild compiles source code, runs tests, and produces build artifacts automatically.
15. What is AWS CodeDeploy?
CodeDeploy automates application deployments to EC2, ECS, Lambda, and on-premises servers.
16. What is Blue-Green Deployment?
A strategy where two environments are maintained, and traffic is switched to avoid downtime.
17. What is Canary Deployment?
Deploying changes to a small percentage of users before rolling out fully.
18. What is Version Control?
Version control tracks code changes.
Common tools: Git, GitHub, GitLab, Bitbucket
19. What is Infrastructure as Code (IaC)?
IaC manages infrastructure using code instead of manual configuration.
20. What is AWS CloudFormation?
CloudFormation allows you to create AWS infrastructure using YAML or JSON templates.
Section 3: Containers & Kubernetes (21–30)
21. What is Docker?
Docker is a containerization tool that packages applications and dependencies together.
22. What is a Docker Image?
A Docker image is a template used to create containers.
23. What is a Docker Container?
A running instance of a Docker image.
24. What is Amazon ECR?
Elastic Container Registry stores and manages Docker images securely.
25. What is Amazon ECS?
Elastic Container Service is AWS’s native container orchestration service.
26. What is Amazon EKS?
Elastic Kubernetes Service is AWS’s managed Kubernetes platform.
27. ECS vs EKS?
| ECS | EKS |
|---|---|
| AWS native | Kubernetes-based |
| Easy to manage | Industry standard |
| Less complex | More flexible |
28. What is Kubernetes?
Kubernetes automates container deployment, scaling, and management.
29. What is a Pod?
A Pod is the smallest deployable unit in Kubernetes.
30. What is Helm?
Helm is a package manager for Kubernetes applications.
Section 4: Monitoring, Security & Scaling (31–40)
31. What is AWS CloudWatch?
CloudWatch monitors metrics, logs, and alarms for AWS resources.
32. What are CloudWatch Alarms?
They trigger notifications or actions when metrics exceed thresholds.
33. What is AWS CloudTrail?
CloudTrail records all AWS API calls for auditing and security.
34. What is Logging in DevOps?
Collecting application and system logs to identify issues.
35. What is Monitoring?
Tracking system health, performance, and availability.
36. What is Auto Scaling?
Automatically adjusts EC2 capacity based on traffic demand.
37. What is a Load Balancer?
Distributes traffic across multiple servers.
38. Types of Load Balancers in AWS?
- Application Load Balancer
- Network Load Balancer
- Gateway Load Balancer
39. What is a Security Group?
A virtual firewall controlling inbound and outbound traffic.
40. What is NACL?
Network Access Control List controls traffic at the subnet level.
Section 5: Advanced & Scenario-Based (41–50)
41. What is Terraform?
Terraform is an Infrastructure as Code tool used for multi-cloud provisioning.
42. Terraform vs CloudFormation?
| Terraform | CloudFormation |
|---|---|
| Multi-cloud | AWS only |
| HCL language | YAML/JSON |
| Faster execution | Native AWS |
43. What is Immutable Infrastructure?
Infrastructure that is replaced instead of modified.
44. What is Disaster Recovery?
Processes to restore applications after failures.
45. What are RTO and RPO?
- RTO: Recovery Time Objective
- RPO: Recovery Point Objective
46. What is Zero Downtime Deployment?
Deploying updates without interrupting users.
47. What is Rollback?
Reverting to a previous stable version after failure.
48. What is AWS Cost Optimization?
Reducing costs using:
- Auto Scaling
- Reserved Instances
- Spot Instances
49. What are AWS Tags?
Key-value pairs for resource organization and billing.
50. What skills should an AWS DevOps fresher have in 2025?
- Linux fundamentals
- AWS core services
- CI/CD pipelines
- Docker & Kubernetes
- Terraform / CloudFormation
Why Choose Cloud Softsol for AWS DevOps?
Cloud Softsol provides:
- Real-time AWS DevOps training
- Hands-on projects
- Interview-focused learning
- Multi-cloud exposure (AWS, Azure, GCP)
Visit: www.cloudsoftsol.com
Conclusion
AWS DevOps interviews in 2025 demand strong fundamentals, automation mindset, and hands-on exposure.
These Top 50 AWS DevOps Interview Questions will help freshers gain confidence and crack interviews successfully.
Bookmark this guide from Cloud Softsol and revise before interviews.
