Volkswagen Group Technology Solution AWS Devops Engineer Interview Questions and Answers

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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Q1. Questions on Network Part
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How aws vs verulation.

Q1. Nacl vs security group?
Ans. 
Nacl is a stateless firewall while security group is a stateful firewall in AWS.
• NACL operates at the subnet level, while security groups operate at the instance level.

• NACL rules are evaluated in order, while security group rules are evaluated independently.

• NACLs are stateless, meaning you must create rules for both inbound and outbound traffic, while security groups are stateful.

• NACLs are more flexible in terms of allo...read more
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Q2. Aws cloudformation
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Q1. Reason for change
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Q2. Salary discuss how much excellent
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Q1. Python in opps concept and c basics and also after joining tcs. I have worked on AWS devops project
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Q1. Why should we hire you
Ans. 
I have a strong background in AWS services, DevOps practices, and a proven track record of successfully implementing automation and improving efficiency.
• Extensive experience with AWS services such as EC2, S3, Lambda, and CloudFormation

• Proficient in DevOps tools like Jenkins, Docker, and Kubernetes

• Implemented CI/CD pipelines to automate software delivery processes

• Improved system reliability and scalability through infra...read more
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Q2. Good good good good
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