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In Continuous Integration, what feedback do developers receive about their code?

  1. Performance metrics

  2. Health of the code base

  3. User acceptance results

  4. Deployment success rate

The correct answer is: Health of the code base

In Continuous Integration (CI), one of the key aspects is providing developers with timely feedback about the state of their code and the overall code base. The health of the code base typically refers to its quality, maintainability, and how well the code adheres to the defined standards. In CI environments, automated testing and builds are employed to monitor this health. When code is committed to the repository, the CI system runs a suite of tests to ensure that new changes do not break existing functionality or introduce new bugs. This information is crucial for developers as it allows them to identify issues early in the development process, leading to improved quality and reliability of the software. While performance metrics, user acceptance results, and deployment success rate are also important in the software development lifecycle, they do not specifically represent the immediate feedback developers receive during the CI process. Performance metrics generally assess how efficiently the application runs, user acceptance results pertain to feedback from actual users about the usability and functionality of the software, and deployment success rate indicates how often deployments succeed without errors. These factors, while valuable, come into play at different stages of development and deployment, rather than providing the direct, immediate feedback about code health that Continuous Integration aims to facilitate.