Practical - DevOps

Question 1

What is Docker?

Answer 1

Containers include the application and all its dependencies. However, they share the OS kernel with other containers, running as isolated processes in user space on the host operating system.

Question 2

What is a Dockerfile?

Answer 2

A Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image.

Question 3

What is CI/CD?

Answer 3

CI/CD falls under DevOps (the joining of development and operations teams) and combines the practices of continuous integration and continuous delivery. CI/CD automates much or all of the manual human intervention traditionally needed to get new code from a commit into production, encompassing the build, test (including integration tests, unit tests, and regression tests), and deploy phases, as well as infrastructure provisioning. With a CI/CD pipeline, development teams can make changes to code that are then automatically tested and pushed out for delivery and deployment.

Question 4

What is DevOps?

Answer 4

DevOps is a combination of software developers (dev) and operations (ops). It is defined as a software engineering methodology which aims to integrate the work of software development and software operations teams by facilitating a culture of collaboration and shared responsibility.

Question 5

List the 4 DevOps Principles

Answer 5

● Automation of the software development lifecycle
● Collaboration and communication
● Continuous improvement and minimization of waste
● Hyperfocus on user needs with short feedback loops