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The ISTQB Certified Tester - Performance Testing CT-PT certification is a valuable credential earned by individuals to validate their skills and competence to perform certain job tasks. Your ISTQB Certified Tester - Performance Testing CT-PT certification is usually displayed as proof that you’ve been trained, educated, and prepared to meet the specific requirement for your professional role. The ISTQB Certified Tester - Performance Testing CT-PT Certification enables you to move ahead in your career later.

ISTQB CT-PT Exam Syllabus Topics:

Topic
Details

Topic 1

Common Failures in Performance Testing and Their Causes: This section of the exam measures the skills of Performance Engineers and outlines frequent failure modes, including slow responses at various load levels, degraded performance over time, and system crashes under peak conditions. It provides examples of underlying causes such as resource leaks, insufficient capacity, and poor handling of spikes or concurrency, illustrating why robust planning and monitoring are crucial for reliable performance.

Topic 2

Types of Performance Testing: This section of the exam measures the skills of Software Test Analysts and covers various approaches such as load, stress, scalability, spike, endurance, concurrency, and capacity testing. It explains how each type evaluates system behavior under different conditions, helping testers and stakeholders understand how the system handles both expected and extreme usage scenarios.

Topic 3

Testing Types in Performance Testing: This section of the exam introduces the distinction between static and dynamic performance testing. It shows how reviews of requirements, architecture, and code can identify risks before coding is complete, and how runtime checks of resource utilization and response times reveal issues that only appear when the system is in operation.

Topic 4

The Concept of Load Generation: This section of the exam measures the skills of Software Test Analysts and discusses how representative loads are modeled and produced to simulate user or process behavior. It explores methods such as user interface inputs, crowdsourcing, API-based calls, or protocol capture and playback, emphasizing the need for repeatable loads that accurately reflect real-world conditions.

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ISTQB Certified Tester - Performance Testing Sample Questions (Q36-Q41):

NEW QUESTION # 36
Which of the following is the best description of spike testing?

A. It focuses on the ability of the system to meet future efficiency requirements.
B. It focuses on the ability of the system to handle loads that are at or beyond the expected peak load.
C. It focuses on the ability of the system to respond to quick and extreme changes in load.
D. It focuses on the ability of the system to handle loads that are gradually increased to reach the expected maximum.

Answer: C

Explanation:
Spike testing is a type of performance testing that evaluates how a system responds to sudden, extreme increases or decreases in load. It is designed to simulate unexpected surges in user activity or workload, such as flash sales, viral events, or cyberattacks.
Option A (Gradual load increase testing) describes load testing, not spike testing.
Option B (Handling expected peak load) describes stress testing, which pushes the system to or beyond its limits but does not focus on sudden changes.
Option C (Meeting future efficiency requirements) relates to capacity planning rather than spike testing.
Spike testing helps to identify system bottlenecks, resource allocation issues, and performance degradation when traffic surges unexpectedly.

NEW QUESTION # 37
Stakeholders were unhappy with previous performance test results, which indicated that the adjustments were not made fast enough and engine stall was probable. The developers have now made changes that they believe will significantly improve the performance of the adjustments.
What should you do to ensure the performance test objectives have been properly defined before you run the next set of performance tests?

A. Realign performance test objectives with business stakeholders to meet project milestone dates.
B. Realign performance test objectives with all stakeholders to meet time-to-market goals.
C. Understand the delta between the results from previous performance tests and the results from the expected performance improvements.
D. Adjust stakeholder expectations to be more aligned with the reality of the previous test results.

Answer: C

Explanation:
Before running the next set of performance tests, it is crucial to understand the differences (delta) between the previous test results and the expected improvements. This ensures that:
The changes made by developers are properly validated.
Performance objectives are aligned with measurable improvements.
Option B (Adjust stakeholder expectations) is incorrect, as performance testing should focus on real data rather than adjusting expectations.
Option C and D (Realign objectives for milestones or time-to-market goals) are incorrect because test objectives should focus on technical accuracy rather than schedule constraints.

NEW QUESTION # 38
Which of the following is a best practice to include in performance test scripts when verifying results?

A. Increase the number of scripts executed to provide greater coverage.
B. Hold the development team accountable for system performance.
C. Verify that correct information was added to the database.
D. Add transaction timers to collect response times.

Answer: C

NEW QUESTION # 39
Which of the following performance script types measures network response times?

A. Protocol-level scripts
B. API scripts
C. HTTP scripts
D. GUI scripts

Answer: A

Explanation:
Protocol-level scripts measure the actual response times of network requests, making them ideal for analyzing network latency, bandwidth issues, and server response times.
Option A (GUI scripts) measure user interactions, not network timing.
Option B (API scripts) measure API interactions but do not provide detailed network response time analysis.
Option C (HTTP scripts) measure web requests but lack low-level network insights.

NEW QUESTION # 40
Which of the following is a typical performance risk associated with mobile, browser-based, and embedded real-time architectures?

A. Internet connectivity issues
B. Misconfigured host machine
C. Unexpected loads due to API accessibility
D. Slow hard disk speed

Answer: C

Explanation:
Mobile and browser-based applications often rely on APIs for data retrieval and processing. Unexpected API load can cause latency issues, bottlenecks, and system crashes.
Option A (Hard disk speed) is not a major issue in cloud-based or mobile systems.
Option B (Misconfigured host machine) affects on-premise systems, not mobile/browser-based applications.
Option D (Internet connectivity issues) is a user-side issue, not a system performance risk.

NEW QUESTION # 41
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