SAFE DevOps Practitioner (SDP) Practice Exam 2026 – Your Comprehensive Guide to Mastering DevOps Certification!

The Test-Driven Development (TDD) approach is characterized by writing tests before the actual code is implemented. This methodology emphasizes that developers first develop a test for a piece of functionality or behavior, and then write the minimum amount of code necessary to make that test pass. The cycle typically follows these steps: write a test that defines a desired improvement or new function, run the test and see it fail (since the feature is not implemented yet), implement the code to pass the test, and finally refactor the code while ensuring that the tests still pass. This process leads to better code quality, as it encourages developers to think about requirements and design before coding, thereby minimizing bugs and facilitating future code changes.

The other choices do not accurately capture the essence of TDD. For instance, stating that code is written before tests contradicts the core principle of TDD. Similarly, a focus solely on testing misses the aspect of iterative development that TDD espouses. Lastly, associating TDD with increased documentation overlooks the primary aim of TDD, which is to create functional software through a defined and repeatable testing process.