Tech Mahindra Devops Consultant Interview Questions and Answers

Kubernetes pods - difference between deployment and daemonset

• Deployment manages a set of identical pods, ensuring availability and scalability

• DaemonSet ensures that all nodes run a copy of a pod, useful for system-level services

• Deployment is suitable for stateless applications, while DaemonSet is suitable for stateful applications

• Deployment can be used for rolling updates, while DaemonSet is not suitable for rolling up

AWS offers three types of load balancers: Application, Network, and Classic. Auto-Scaling helps to automatically adjust resources based on demand. S3 offers four storage classes: Standard, Intelligent-Tiering, Standard-Infrequent Access, and Glacier.

• AWS offers three types of load balancers: Application, Network, and Classic

• Application Load Balancer operates at Layer 7 of the OSI model and is best suited for HTTP/HTTPS ...read more

Explanation of DevOps CI/CD flow and Git commands

• DevOps CI/CD flow involves continuous integration, testing, and deployment of code changes

• Git stash temporarily saves changes without committing them

• Git commit permanently saves changes to the repository

• Git merge combines changes from different branches

• Git rebase applies changes from one branch onto another

• Git pull fetches changes from a remote repository and merges them...read more

A good SCM branching strategy involves clear naming conventions, regular merges, and a well-defined release process.

• Use a naming convention that clearly identifies the purpose of each branch

• Regularly merge changes from development branches into the main branch

• Have a well-defined release process that includes testing and deployment

• Consider using feature toggles to enable/disable new functionality

• Use automation tools to

Terraform module is a reusable set of resources that can be used to create infrastructure.

• Terraform modules can be used to create reusable infrastructure code.

• They can be shared across teams and projects.

• Modules can be published to the Terraform Registry for easy access.

• Modules can be parameterized to allow for customization.

• Example: A module for creating an AWS VPC with subnets and security groups.