Which of the following set of test types would be most appropriate to verify the non-functional requirements expressed in this statement?

A client-server system for a web development must support a minimum of 200 enquiries per hour. In peak times, it must be available 24 hours x 7 days due to the critical nature of the application, and must have a response time lower than 20 seconds during peak loads.

Which of the following set of test types would be most appropriate to verify the non-functional requirements expressed in this statement?
A . Performance, Usability, Regression.
B . System, Load, Fail-over.
C . Performance, Load, Stress.
D . Load, Volume and Component.

View Answer

Answer: C

Explanation:

Performance, Load, Stress. Performance testing is a type of non-functional testing that measures how well the system performs under various conditions, such as response time, throughput, resource utilization, etc. Load testing is a type of performance testing that simulates a high volume of user requests or transactions on the system and measures its behavior under normal and peak load conditions. Stress testing is a type of performance testing that simulates extreme or abnormal conditions on the system and measures its behavior under stress or overload conditions. These test types would help verify the requirements such as minimum number of enquiries per hour, availability, and response time under peak loads. A detailed explanation of performance, load, and stress testing can be found in Software Testing Foundations: A Study Guide for the Certified Tester Exam, pages 187-1913.