SAP Devops Engineer Interview Questions and Answers

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 ?
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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 ?
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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 ?
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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...read more
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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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Generic Questions to check basic skills

Q1. Latest Tech in the market
Ans. 
Some of the latest technologies in the market include AI, blockchain, edge computing, and serverless computing.
• Artificial Intelligence (AI) - used for automation, predictive analytics, and natural language processing

• Blockchain - for secure and transparent transactions in various industries

• Edge Computing - processing data closer to the source for faster response times

• Serverless Computing - allows developers to focus on ...read more
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Q1. Salary Negotiation
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Q1. What is Thin vs thick provisioning ?
Ans. 
Thin provisioning allocates storage space on demand, while thick provisioning allocates all space upfront.
• Thin provisioning only allocates storage space as it is needed, reducing wasted space

• Thick provisioning allocates all storage space upfront, regardless of actual usage

• Thin provisioning is more flexible and efficient, but can lead to over-allocation if not managed properly

• Thick provisioning provides better performan...read more
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