Google Devops Engineer Interview Questions and Answers

Q1. Explain our company devops process
Ans. 
Our company's DevOps process focuses on continuous integration, automated testing, and deployment.
• Continuous integration: Developers regularly merge their code changes into a shared repository, triggering automated builds and tests.

• Automated testing: Testing is automated at various stages of the development process to ensure code quality and reliability.

• Deployment automation: Code changes are automatically deployed to ...read more
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Q1. It was about terraform
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Q2. It was about kubernetes
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Q1. About Linux and AWS
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Q2. Python coding Test
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Q1. Deep dive in AWS
Ans. 
AWS is a cloud computing platform by Amazon offering a wide range of services for storage, computing, networking, databases, and more.
• AWS provides a wide range of services including EC2 (Elastic Compute Cloud), S3 (Simple Storage Service), RDS (Relational Database Service), and more.

• AWS offers scalability, flexibility, and cost-effectiveness for businesses of all sizes.

• AWS has a global infrastructure with data centers ...read more
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Q2. Deep dive in Terraform and Python
Ans. 
Terraform is an infrastructure as code tool, while Python is a versatile programming language often used for automation in DevOps.
• Terraform is used for provisioning and managing infrastructure resources in a declarative way.

• Python is commonly used for scripting, automation, and building tools in the DevOps ecosystem.

• Terraform can be integrated with Python scripts to enhance automation capabilities.

• Both Terraform and Py...read more
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Q1. What is VPC and its concepts?
Ans. 
VPC stands for Virtual Private Cloud, a virtual network dedicated to your AWS account.
• VPC allows you to create a logically isolated section of the AWS Cloud where you can launch AWS resources.

• You can define your own IP address range, create subnets, configure route tables, and network gateways within a VPC.

• VPC provides security by allowing you to control inbound and outbound traffic to and from your instances.

• You can c...read more
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Q2. What are the two health checks when EC2 instance is launched?
Ans. 
The two health checks when an EC2 instance is launched are System Status Checks and Instance Status Checks.
• System Status Checks ensure that the underlying host system is healthy and reachable.

• Instance Status Checks ensure that the instance is running properly and can be accessed.

• Examples: System Status Checks may include checking network connectivity, while Instance Status Checks may include verifying system logs.
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Q3. What is difference between IAM group and IAM roles?
Ans. 
IAM groups are collections of IAM users, while IAM roles are permissions that can be assumed by users or services.
• IAM groups are used to manage permissions for multiple users at once

• IAM roles are used to delegate permissions to users or services

• IAM groups can contain multiple users, while IAM roles can only be assumed by one entity at a time
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Overall ok It was 30 min duration

Q1. About experience in DevOps ?
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Q2. How do you approach to create a jenkins pipeline ?
Ans. 
To create a Jenkins pipeline, I follow these steps:
• Define the stages and steps of the pipeline

• Create a Jenkinsfile with the pipeline code

• Configure Jenkins to use the Jenkinsfile

• Test the pipeline and make necessary adjustments

• Integrate with version control for continuous integration

• Use plugins for additional functionality
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Q3. Syntax to print jenkins secrets ?
Ans. 
To print Jenkins secrets, use the syntax: printenv
• Use the 'printenv' command followed by the name of the secret to print its value

• Make sure to have the necessary permissions to access the secret

• Example: printenv MY_SECRET
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Q4. Creation of Docker image using Dockerfile ?
Ans. 
Dockerfile is a script that contains instructions to build a Docker image.
• Create a Dockerfile with instructions for building the image

• Use the 'docker build' command to build the image from the Dockerfile

• Example: FROM ubuntu:latest RUN apt-get update && apt-get install -y nginx

• Example: docker build -t myimage:latest .
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Q5. Difference between CMD and RUN in Dockerfile ?
Ans. 
CMD is used to specify the default command to be executed when a container is launched. RUN is used to execute commands during the build process.
• CMD is used to set the default command or parameters for the container

• RUN is used to execute commands during the build process to create the image

• CMD can be overridden by passing arguments to docker run command

• RUN executes the command and creates a new layer on top of the curr...read more
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Q6. Difference between Java and Nodejs ?
Ans. 
Java is a statically typed language while Nodejs is a runtime environment for executing JavaScript code.
• Java is compiled while Nodejs is interpreted

• Java is better for large-scale enterprise applications while Nodejs is better for real-time applications

• Java has a larger community and more libraries while Nodejs has a simpler and more lightweight architecture

• Java is used for Android app development while Nodejs is used f
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Q7. What is PaaS, IaaS & SaaS ?
Ans. 
PaaS, IaaS, and SaaS are cloud computing models that provide different levels of infrastructure and software services.
• PaaS (Platform as a Service) provides a platform for developers to build and deploy applications without worrying about infrastructure management.

• IaaS (Infrastructure as a Service) provides virtualized computing resources such as servers, storage, and networking.

• SaaS (Software as a Service) provides sof...read more
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Q8. What is DevOps ?
Ans. 
DevOps is a software development methodology that emphasizes collaboration and communication between development and operations teams.
• DevOps aims to streamline the software development process by breaking down silos between development and operations teams

• It involves using automation and continuous delivery to speed up the release cycle

• DevOps also emphasizes monitoring and feedback to ensure that software is reliable a...read more
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Q9. What is build in Java ?
Ans. 
Build in Java refers to the process of compiling source code into executable code.
• Build process involves compiling, testing, and packaging the code

• Java build tools like Maven and Gradle automate the build process

• Build artifacts can be JAR, WAR, or EAR files

• Build process can be customized using build scripts like Ant
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They first gave me a project to be implemented in Go language, then was called for tefchnival round