PWC Interview experience for Junior DevOps Engineer

 PWC Interview experience for Junior DevOps Engineer role

✅ Round 1: Screening Round (30 minutes)

- Walk me through your current project architecture and your role in it.

- Which DevOps tools have you worked with in the last 2 years?

- What AWS services have you used in production?

- How do you expose a Kubernetes application to external traffic?

- What is the purpose of a NAT Gateway?

- How do you check running processes in Linux?

- What command would you use to find files larger than 100MB?

- What is the difference between Deployment and StatefulSet in Kubernetes?

- What is a ConfigMap, and how is it different from a Secret?

- How do you check network connectivity between two servers?

- Describe your experience with CI/CD pipelines.

✅ Round 2: Technical Round (60 minutes)

- You have an application in Account A that needs to access an S3 bucket in Account B. How would you configure this?

- Write a Dockerfile for a Node.js application with multi-stage builds.

- How do you handle Terraform state file corruption?

- Your EC2 instance in a private subnet needs to download packages without NAT Gateway. What alternatives exist?

- How do you debug a container that has exited?

- You need to import an existing AWS VPC into Terraform. What are the steps?

- How would you implement blue-green deployment in Kubernetes?

- How do you manage secrets in Terraform without hardcoding them?

- What's the difference between COPY and ADD commands in Dockerfile?

- How would you implement cross-account resource provisioning using Terraform?

- How would you handle secrets in a Docker container for a PHP application connecting to MySQL?

- An S3 bucket was created via Terraform, but someone manually added a policy. How do you handle this drift?

- How do you implement network policies to restrict pod-to-pod communication in Kubernetes?

- Write a Python script to backup all files older than 30 days from a directory.

- Your company's cloud costs are increasing rapidly. - How would you approach cost optimization without impacting performance?

- How would you set up geolocation-based routing using AWS services?

- A critical production Kubernetes cluster is experiencing multiple issues. Pods are stuck in ImagePullBackOff, some pods are being evicted, and users are reporting 503 errors from the application. What troubleshooting process will you follow, and how can to avoid this in the future?

✅ Round 3: Behavioral Round

- How do you handle a situation where you're asked to work on a technology you have no experience with?

- Describe a time when you had to work with tight deadlines and limited resources.

- Tell me about a mistake you made in production and how you handled it.

- Describe the most challenging technical problem you've solved in your career.

- How would you convince stakeholders to adopt a new technology or process?

- Tell me about a time when you had to learn a new tool quickly to solve a business problem.