0-2yr Devops Interview Questions

[kwagalgave]

What is the export command in Linux, and why do we use it?
How do you print repeated values from a string using Python?
What are subnets in AWS? Why do we use public and private subnets?
What is a NAT Gateway, and why is it required?
How does AWS Secrets Manager work with Kubernetes Secrets Store?
What happens internally?
Difference between IAM Role and IAM Policy with real-time scenarios.
How do you create an EKS cluster?
How do you access an EKS cluster after creation?
Difference between NodePort and LoadBalancer in Kubernetes.
How does DNS work end-to-end?
How do you deploy multiple applications (frontend & backend)?
How do they communicate?
How do you expose them to the public?
What Kubernetes components do you define in a YAML file?
Write basic Terraform code (real-time usage).
Terraform state locking:
What happens when one person is using the state file?
How can a second person get access?
What exactly do you do using Prometheus?
How does Prometheus access pod metrics?
Have you created Prometheus dashboards? If yes, how?
What is CrashLoopBackOff? Why does it occur?
Difference between IAM User and IAM Role — when do you use each in projects?
What are your day-to-day activities as a DevOps / SRE engineer?