DevOps Interview Questions

Question 1:

Docker vs Vagrant

Question 2:

What is SAAS, PAAS & IAAS stand for?

Question 3:

What is VPC?

Question 4:

What is IAC?

Question 5:

Cloud Regions vs Availability Zones?

Question 6:

What is EKS?

Question 7:

What is ECR?

Question 8:

Pods vs Deployments?

Question 9:

What is Cloud Formation?

Question 10:

Horizontal Scaling vs Vertical Scaling?

Question 11:

What Kubectl is used for?

Question 12:

Monolithic vs Microservices?

Question 13:

What is LoadBalancer?

Question 14:

What is Elasticity?

Question 15:

What is Target groups?

Question 16:

What High Availability means?

Question 17:

Master node vs Worker node?

Question 18: (Kubernetes)

What is Kubernetes and how does it work?

Question 19:

Can you explain the difference between a pod and a deployment in Kubernetes?

Question 20:

How do you scale a deployment in Kubernetes?

Question 21:

How do you monitor and troubleshoot a Kubernetes cluster?

Question 22:

What is a service in Kubernetes and why is it needed?

Question 23:

How do you deploy a containerized application to Kubernetes?

Question 24:

What are the different types of Kubernetes volumes and when would you use each type?

Question 25:

What is a Kubernetes ConfigMap and how would you use it?

Question 26:

Can you explain the concept of a Kubernetes namespace?

Question 27:

How do you perform a rolling update of a Kubernetes deployment?

Question 28: (Infrastructure as a Code)

What is Infrastructure as Code (IaC), and how does it differ from traditional infrastructure management approaches?

Question 29:

What are some benefits of using IaC for managing infrastructure, compared to traditional approaches?

Question 30:

Can you explain how tools like Terraform and Ansible can be used for IaC?

Question 31:

How do you ensure that your IaC code is secure and follows best practices?

Question 32:

What are some common design patterns and best practices for writing IaC code?

Question 33:

How do you test and validate your IaC code before deploying it to production?

Question 34:

What are some common challenges and limitations when using IaC, and how can they be addressed?

Question 35:

Can you explain the concept of infrastructure drift, and how IaC can help prevent it?

Question 36:

How do you manage secrets and sensitive data in IaC code?

Question 37:

Can you give an example of a real-world scenario where you used IaC to deploy and manage infrastructure?