1. DevOps is a mindset/ culture or approach in the software field, that involves reorganizing teams so that no complexities/ problems of earlier development methods are present. Also, it involves automation (except coding), monitoring of released software/ features, and sharing of knowledge. All of this is done with great performance and stability.

2. Speed of deployment increases
Easy to spot faults
Lower development, maintenance and time costs
Maintains office morality
Improvement in the customer experience
Increase in delivering values
Problem-solving programming
Reduction in risk
Time for creativity

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Firstly we need to implement a culture shift in the workflow/place to implement DevOps.
Then create a CI/CD platform. (Continuous Integration and contin. Delivery)
Establish continuous testing and then continuous deployment
then continuous monitoring.