ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question
During a sprint retrospective, a DevSecOps team decides to build a security test harness for a new microservice. Which capability must the harness provide to ensure security test results remain consistent on every developer workstation and on the CI server?
Run tests inside a version-controlled Docker (or similar) container that provides a deterministic execution environment.
Require testers to set environment variables manually on every workstation before tests run.
Execute all tests directly against the production environment to capture live traffic patterns.
Automatically download the latest threat intelligence feeds before each test execution.
To remove machine-specific differences, the harness must execute inside an immutable, containerized environment-typically a version-pinned Docker image that bundles all required tools, libraries, and configurations. Spinning up the same image on laptops and in the CI pipeline guarantees the tests run under identical conditions, producing repeatable results. Mocking external services, downloading threat feeds, or requiring manual environment variables may aid testing, but none of these alone ensures environment parity.
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ISC2 Certified Secure Software Lifecycle Professional (CSSLP)
Secure Software Testing
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