Automation Testing Performance and Load Testing 3

Question 1

What does the Apdex score measure in performance testing?

Accepted Answer

User satisfaction level based on response times relative to a defined threshold

Answer

Apdex (Application Performance Index) quantifies user satisfaction on a 0-1 scale based on how response times compare to a satisfaction threshold.

Question 2

What is 'spike testing' in performance engineering?

Accepted Answer

Testing system behavior when subjected to a sudden, dramatic increase in load

Answer

Spike testing validates how a system handles sudden, extreme surges in concurrent users, simulating events like viral content or flash sales.

Question 3

In Apache JMeter, what component groups HTTP requests with a defined ramp-up and number of threads?

Accepted Answer

Thread Group

Answer

The Thread Group in JMeter defines the number of virtual users (threads), ramp-up period, and loop count for test execution.

Question 4

What is 'concurrency' in the context of load testing?

Accepted Answer

The number of simultaneous users or requests being processed at the same time

Answer

Concurrency refers to multiple users or operations executing simultaneously, which is the key factor in load testing scenarios.

Question 5

Which HTTP header indicates the content format of an API response body?

Accepted Answer

Content-Type

Answer

The Content-Type header specifies the media type of the response body (e.g., application/json), telling the client how to parse it.

Automation Testing Practice Test