Tech Mahindra AWS Cloud and DevOps Engineer Interview Questions and Answers

Q1. What technology have you used
Ans. 
I have experience with a variety of technologies including AWS, Docker, Kubernetes, Jenkins, Terraform, and Ansible.
• AWS

• Docker

• Kubernetes

• Jenkins

• Terraform

• Ansible
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Q1. How can you perform rolling updates and rollbacks of applications in Kubernetes?
Ans. 
Rolling updates and rollbacks in Kubernetes can be performed using deployment objects and their configurations.
• Use Kubernetes deployment objects to manage application updates.

• Specify the desired number of replicas and update strategy in the deployment configuration.

• To perform a rolling update, change the image version in the deployment configuration and apply the changes.

• Kubernetes will gradually update pods to the new...read more
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Q2. What is the purpose of Helm in Kubernetes, and how does it simplify application deployment and management
Ans. 
Helm is a package manager for Kubernetes that simplifies application deployment and management.
• Helm allows users to define, install, and upgrade complex Kubernetes applications with ease using charts.

• It helps in managing dependencies, configurations, and versions of applications in Kubernetes.

• Helm enables sharing of applications through public or private repositories, promoting reusability and collaboration.

• It provides...read more
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Q3. How would you troubleshoot a Pod that is not running as expected in a Kubernetes cluster?
Ans. 
To troubleshoot a Pod not running in a Kubernetes cluster, check logs, describe Pod, check resource limits, verify network connectivity, and restart Pod.
• Check the logs of the Pod to identify any error messages or issues

• Describe the Pod to get more information about its status, events, and configuration

• Check the resource limits and requests of the Pod to ensure it has enough resources to run

• Verify network connectivity w...read more
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Q4. What are DaemonSets in Kubernetes, and when might you use them
Ans. 
DaemonSets in Kubernetes ensure that a copy of a pod is running on all or a subset of nodes in a cluster
• DaemonSets are used when you need to run a single pod on all nodes in a cluster, such as logging or monitoring agents

• They are also useful for running pods that provide node-level services, like storage or networking

• DaemonSets can be used to ensure that a specific pod is always running on specific nodes, regardless of
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Q5. What is a Persistent Volume (PV) and a Persistent Volume Claim (PVC) in Kubernetes, and how do they relate to stateful applications?
Ans. 
PV and PVC in Kubernetes are used to provide persistent storage for stateful applications.
• Persistent Volume (PV) in Kubernetes is a piece of storage in the cluster that has been provisioned by an administrator.

• Persistent Volume Claim (PVC) is a request for storage by a user or pod in the cluster.

• PVs and PVCs decouple storage from the pod, allowing for easier management and scaling of stateful applications.

• PVs can be dy...read more
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Q1. NO ROUND CONDUCTED SIMPLY WASTED 6 MONTHS
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About aws and devops

Q1. Ask me basic questions on aws
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It was very basic. Consisted of logical and numerical reasoning questions

Q1. Tell me about yourself
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Q2. Tell me about your internship experience
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Q3. Tell me about your projects
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Q4. Tell me about software development lifecycle
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Q5. Share screen and solve this coding question
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He tried has good friend

Good coding test process

He tech like Friend

Q1. Tell Me About Yourself.
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Q2. What is aws technology
Ans. 
AWS technology refers to the suite of cloud computing services provided by Amazon Web Services.
• Amazon Web Services (AWS) offers a wide range of cloud computing services such as computing power, storage, and databases.

• AWS technology allows businesses to scale and grow without the need for large upfront investments in hardware.

• Examples of AWS services include Amazon EC2 for virtual servers, Amazon S3 for storage, and Ama
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Q3. What is the use s3 bucket in aws
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S3 bucket in AWS is a scalable storage solution for storing objects such as files, images, videos, and backups.
• Used for storing and retrieving data in the cloud

• Highly scalable and durable storage solution

• Can be used for hosting static websites or storing backups

• Objects stored in S3 can be secured using access control policies and encryption

• Can be integrated with other AWS services like EC2, Lambda, and CloudFront
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Q4. How to create account RDS
Ans. 
To create an RDS account, you need to sign up for an AWS account and then navigate to the RDS service in the AWS Management Console.
• Sign up for an AWS account if you don't already have one

• Navigate to the RDS service in the AWS Management Console

• Click on 'Create database' to start the process

• Choose the database engine, version, and other configuration settings

• Specify the database credentials and security settings

• Review
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Q1. Tell me about your self
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Q2. What is key elements in aws
Ans. 
Key elements in AWS include compute, storage, databases, networking, security, and management tools.
• Compute services like EC2, Lambda, and Elastic Beanstalk

• Storage services like S3, EBS, and Glacier

• Database services like RDS, DynamoDB, and Redshift

• Networking services like VPC, Route 53, and Direct Connect

• Security services like IAM, KMS, and WAF

• Management tools like CloudWatch, CloudFormation, and AWS Config
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Q3. What is vps in aws
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VPS in AWS stands for Virtual Private Server, which is a virtualized server that runs on a cloud computing environment.
• VPS in AWS provides users with dedicated resources and control over their server environment

• Users can customize their VPS with specific configurations and software

• VPS instances in AWS can be easily scaled up or down based on demand

• Examples of VPS services in AWS include Amazon EC2 (Elastic Compute Clou
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Q1. Questions on Docker
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Q1. What is docker File ? Explain
Ans. 
Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image.
• Dockerfile is used to build Docker images by specifying a series of instructions.

• It includes commands like FROM, RUN, COPY, CMD, etc.

• Each instruction in the Dockerfile creates a layer in the image.

• Dockerfile is used to automate the process of creating Docker containers.

• Example: FROM ubuntu:latest, RUN
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Q2. What is webhook & why??
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Webhook is a method of augmenting or altering the behavior of a web page, or web application, with custom callbacks.
• Webhook is a way for an application to provide other applications with real-time information.

• It allows developers to receive instant notifications when a specific event occurs.

• Webhooks are commonly used in automation, continuous integration, and deployment processes.

• Examples include receiving notification...read more
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