A performance test engineer is using a tool to generate load against a REST API. The tool sends a mix of GET and POST requests and records the server's response times. The engineer notices that response times increase significantly when the request rate exceeds 100 requests per second. What does this observation represent?

A configuration error in the load testing tool that must be fixed.

A static analysis finding that indicates a bottleneck in the API's code.

A network issue unrelated to the application's performance.

A dynamic testing result that reveals the system's behavior under increasing load.

In performance testing, what does dynamic testing primarily measure?

The adherence of the code to naming conventions

The completeness of the test data in the database

The number of lines of code in the application

The system's behavior under load, such as response time and throughput

Which activity is an example of dynamic testing?

Analyzing the call graph of the source code

Running a test case that enters data into the application and checks the result

Performing a code walkthrough with the development team

Inspecting the test plan for completeness

Which outcome is a direct result of performing dynamic testing?

A list of potential defects found by reviewing the requirements document

A report of failures observed when the software was executed with specific inputs

A summary of coding standard violations in the source code

A graph showing the dependencies between software modules

A development team has just integrated a new payment gateway API. They want to confirm that the integration correctly processes a successful transaction and also handles a timeout from the external service. Which approach best aligns with the purpose of dynamic testing?

Execute the application with test cases that trigger both a successful payment and a simulated timeout, then observe the outcomes.

Inspect the API documentation to ensure the timeout parameter is correctly specified.

Ask the payment gateway vendor to provide a certificate of compliance for their API.

Review the integration code to verify that the correct API endpoints are called for each scenario.

Certified Tester Performance Testing

Domain 1Objective 4

Dynamic Testing CT-PT Practice Questions (Page 2)

Part of the Basic Concepts domain, which makes up ~25% of our current practice bank. ISTQB does not publish an official question count, but from its 90-minute exam (~35–60 total, ~9–15 in this domain), expect 2–3 from this objective — we provide 18 practice questions to prepare you well beyond it. (estimate)

18questions here

4free pages

3concepts

Questions 6–10

6application · medium
A performance test engineer is using a tool to generate load against a REST API. The tool sends a mix of GET and POST requests and records the server's response times. The engineer notices that response times increase significantly when the request rate exceeds 100 requests per second. What does this observation represent?
Select an answer first
7foundation · easy
In performance testing, what does dynamic testing primarily measure?
Select an answer first
8foundation · easy
Which activity is an example of dynamic testing?
Select an answer first
9foundation · easy
Which outcome is a direct result of performing dynamic testing?
Select an answer first
10application · medium
A development team has just integrated a new payment gateway API. They want to confirm that the integration correctly processes a successful transaction and also handles a timeout from the external service. Which approach best aligns with the purpose of dynamic testing?
Select an answer first

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