Virtualization uses software to create an abstract layer over the hardware. By doing this it creates a virtual computer system, known as the virtual machines (VMs). This will allow organizations to run multiple virtual computers, operating systems, and applications on a single physical server How Does Virtualization works: Virtual machine (VM) is a virtual representation of a physical computer.Virtual machines can’t interrelate directly with a physical computer, but.

Continuous integration is a DevOps practice, where developers continuously integrate the code changes into a central repository. It most often refers to the build or the integration stage of the software release process.A continuous integration service helps to automatically build and run unit tests on the new code changes to find any errors instantly.

Developing a quality software is considered incomplete without writing tests. Not only does the test assure the quality but it profoundly helps developers while refactoring or re-writing a piece of code. When it comes to testing, having well-planned and thorough testing throughout the software development cycle is very important. The most commonly used types of tests today are unit tests and integration tests.

Continuous Integration(CI) is a software development practice where developers frequently merge the code and the changes in a central repository. The important goals of continuous integration is to find and resolve the bugs more quicker, improve the software quality, and reduce the time taken to validate and release new software updates. Continuous Delivery(CD), which is done on the top of Continuous Integration and includes the practice of automating the entire software release process and builds.