Software Testing Performance & Load Testing

Question 1

What is the primary goal of performance testing?

Accepted Answer

Evaluate system speed, scalability, and stability under load

Answer

Find functional bugs in the application

Answer

Verify that UI elements render correctly

Answer

Check database schema integrity

Question 2

Which type of performance test is designed to push the system beyond normal operational capacity to find its breaking point?

Accepted Answer

Stress test

Answer

Load test

Answer

Spike test

Answer

Soak test

Question 3

Which metric measures the elapsed time from when a user sends a request to when they receive a complete response?

Accepted Answer

Response time

Answer

Throughput

Answer

Error rate

Answer

Concurrency

Question 4

In performance testing, 'throughput' refers to which of the following?

Accepted Answer

The number of requests processed per unit of time

Answer

The time to complete a single transaction

Answer

The percentage of failed requests during the test

Answer

The maximum number of concurrent users supported

Question 5

What does a soak test (also called an endurance test) primarily evaluate?

Accepted Answer

System stability and potential memory leaks over an extended period

Answer

System performance under peak load for a short period

Answer

System recovery time after an unexpected failure

Answer

Response time under minimum possible load

Question 6

In performance testing, what is a 'virtual user' (VUser)?

Accepted Answer

A simulated entity that mimics real user behavior to generate load

Answer

A real user being observed during a live test session

Answer

An administrator account with elevated privileges used during testing

Answer

A test account with intentionally restricted permissions

Question 7

What is the purpose of establishing a 'baseline' in performance testing?

Accepted Answer

To create a reference measurement for comparing future test results

Answer

To define the minimum acceptable performance threshold for release

Answer

To set the maximum load the system is required to handle

Answer

To document the average response time observed in production