It is a software to run or manage the multiple virtual machines in a computer system. It is a methodology to use resources over net. Cost is Higher in cloud than Hypervisor.

DevSecOps basically stands for Development, Security and Operations and an approach to automate the project by adding the security into it.

DevOps Team will reduce the communication gap between the dev and operation team for faster release of application or product or project to the client. Whereas SRE Team will comprehensively get involved into solving the system engineering process by ensuring reliability and stability and will deal with the activities like production failures, infrastructure issues, monitoring.

Git, Jenkins, Docker, Ansible, Kubernetes, Maven, Selenium.

DevOps generally automates the project / integrates different tools with the help of different automation tools using predefined plugins.

DevOps is not just a tool or service, its a methodology/culture which allows the development and operations team to work together as a team.