Which concept is focused on ensuring that code updates are tested and can be released at any time?

• A. Sandbox
• B. Code Signing
• C. Continuous Delivery
• D. Fuzzer

Answer: (C)

Continuous Delivery is about keeping code in a deployable state so updates can be released at any time. This approach automates the build, test, and validation steps so every change goes through a consistent pipeline—unit and integration tests, quality checks, and other criteria—ensuring it’s ready for release on demand. The idea is that once code passes the automated checks, it can be deployed with minimal friction when business needs arise. A sandbox is simply an isolated testing environment and doesn’t by itself guarantee that updates are release-ready. Code signing verifies the origin and integrity of code, not whether it has been tested or is ready to deploy. A fuzzer tests how software behaves under unexpected or random input, which helps uncover security issues, but it doesn’t address the broader process of keeping updates ready for release.