CSI CSI Testing & Quality Assurance 2

Question 1

Which technique involves testing a system with volumes of data far beyond normal operational levels to identify breaking points?

Accepted Answer

Stress testing

Answer

Stress testing pushes a system beyond its normal capacity to identify the threshold at which it fails or degrades.

Question 2

In a continuous integration (CI) pipeline for a system integration project, automated tests should run:

Accepted Answer

On every code commit or merge

Answer

CI pipelines execute automated tests on every commit to catch integration defects as early as possible.

Question 3

A regression test suite is MOST important after:

Accepted Answer

Every code change or patch to a live integrated system

Answer

Regression testing after every change ensures that new updates have not broken previously working integration functionality.

Question 4

What is 'negative testing' in the context of API integration?

Accepted Answer

Sending invalid, malformed, or out-of-range inputs to verify the API handles errors gracefully

Answer

Negative testing deliberately sends bad inputs to confirm that an API returns appropriate error codes and messages rather than crashing.

Question 5

Which metric measures the percentage of source code executed by a test suite?

Accepted Answer

Code coverage

Answer

Code coverage indicates what percentage of code paths are exercised by tests, helping identify untested areas.

(CSI) Certified System Integrator Practice Test