To answer this question, you need to understand the concept of performance testing. Performance testing is a type of testing that is conducted to evaluate the performance and characteristics of a system under specific conditions. It involves measuring and assessing various aspects of the system's performance, such as response time, transaction rates, and user load.
Let's go through each option to understand why it is correct or incorrect:
Option A) Measuring response time - This option is part of performance testing. Measuring response time helps in evaluating the speed and efficiency of the system's response to user actions.
Option B) Measuring transaction rates - This option is also part of performance testing. Measuring transaction rates helps in assessing the system's ability to handle a certain number of transactions within a given time frame.
Option C) Recovery testing - This option is not part of performance testing. Recovery testing is a type of testing that focuses on testing the system's ability to recover from failures, such as crashes or hardware malfunctions.
Option D) Simulating many users - This option is part of performance testing. Simulating many users helps in evaluating the system's performance under heavy user loads and determines how well it can handle concurrent user interactions.
The correct answer is C) Recovery testing. This option is not part of performance testing as it focuses on a different aspect of system testing. Performance testing primarily involves measuring response time, transaction rates, and simulating many users.