Siemens Senior Devops Engineer Interview Questions and Answers

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Q1. Jenkins ci-cd meaning
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Q2. Grep and egrep in linux
Ans. 
grep and egrep are command line tools used for searching text patterns in files in Linux.
• grep is a basic command line tool for searching text patterns in files.

• egrep is an extended version of grep with support for regular expressions.

• grep is case-sensitive by default, use -i flag for case-insensitive search.

• egrep supports extended regular expressions without escaping special characters.

• Example: grep 'pattern' file.txt

• E
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Q3. How to print forth coloumn
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Use awk command to print the fourth column of a file
• Use awk command with '{print $4}' to print the fourth column of a file

• Example: awk '{print $4}' file.txt
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Q1. About ci cd automation
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Q2. Ci cd ansible dovjer
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Q1. What is the difference between ext and xfs?
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ext is the default file system for many Linux distributions, while xfs is known for better performance and scalability.
• ext is the default file system for many Linux distributions

• xfs is known for better performance and scalability

• xfs supports larger file systems and files compared to ext
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Q2. What is the difference between CentOS/RHEL 6 & 7?
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CentOS/RHEL 6 & 7 differ in kernel version, package management, systemd, and support lifecycle.
• Kernel version: CentOS/RHEL 6 uses kernel version 2.6.x while CentOS/RHEL 7 uses kernel version 3.x.

• Package management: CentOS/RHEL 6 uses yum for package management, while CentOS/RHEL 7 uses yum and dnf.

• Systemd: CentOS/RHEL 6 uses SysV init system, while CentOS/RHEL 7 uses systemd as the init system.

• Support lifecycle: CentOS...read more
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Q1. Ci,cd,terraform,k8s,docker & git
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Q1. Scenario based question
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Very long and busy test

Very out of this world really

Q1. Before cicd and after cicd differences
Ans. 
Before CI/CD, manual processes were used for software deployment, leading to slower release cycles. After CI/CD, automation streamlines the process for faster and more reliable deployments.
• Before CI/CD: Manual deployment processes requiring human intervention

• After CI/CD: Automated deployment pipelines for continuous integration and continuous delivery

• Before CI/CD: Longer release cycles due to manual testing and deploym...read more
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Q2. What is docker used for and how integration happened to cicd before docker
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Docker is used for containerization of applications, allowing for easy deployment and scaling. Before Docker, CI/CD integration was more complex and less efficient.
• Docker is used to create lightweight, portable, self-sufficient containers that can run applications in any environment.

• Before Docker, CI/CD pipelines often relied on virtual machines or manual configurations for deployment and testing.

• Docker simplifies the ...read more
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