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ISTQB CT-PT Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	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.
Topic 3	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 4	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.

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100% Pass 2025 Perfect ISTQB CT-PT: Reliable ISTQB Certified Tester - Performance Testing Exam Question

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ISTQB Certified Tester - Performance Testing Sample Questions (Q27-Q32):

NEW QUESTION # 27
You are managing the testing efforts of an existing distributed system that manages inventories of automobile and light truck tires from multiple warehouses across the country. The system is being enhanced to track incoming restocking shipments at the point of entry to the warehouse and outbound sales shipments at the point of shipment from the warehouse, all of which are executed in real-time. System loads traditionally peak on Mondays due to built-up demand from the previous weekend.
You are preparing a presentation to the business stakeholders, outlining your performance testing strategy.
Which of the following is appropriate to present to this audience?

A. The risks that may exist due to platform differences between the test environment and the production environment
B. A comprehensive list of support staff to be available during performance testing, including key members of the application development team
C. A test plan that includes specific technical specifications for the computing hardware to be used for performance testing
D. Established HTTP response per second goals that will have acceptable minimum, maximum, and average response times

Answer: A

Explanation:
Business stakeholders are most concerned with risks that affect deployment and production stability. The primary risk in performance testing is that the test environment may differ from production, leading to misleading test results.
Option A (HTTP response goals) is too technical for a business stakeholder audience.
Option B (Hardware specifications) is relevant for technical teams, not business stakeholders.
Option C (Support staff details) is a logistical aspect, not a key performance testing risk for business decision-makers.

NEW QUESTION # 28
Which of the following is a major contributor to unreliable performance projections?

A. Differences in the hardware between the test and production environments
B. Business stakeholders setting unrealistic performance goals
C. Redundancy between the test and production environments
D. Disagreement between the technical and business stakeholders during analysis

Answer: A

Explanation:
One of the biggest contributors to unreliable performance projections is differences between the test and production environments. If test environments do not match CPU, memory, network configurations, and database setups in production, the results may not be representative of real-world performance.
Option A (Redundancy between test and production environments) is not a problem; it's actually beneficial for reliability.
Option B (Disagreement between stakeholders) can affect planning but does not cause unreliable projections.
Option D (Unrealistic stakeholder goals) affects expectations but not the accuracy of projections.

NEW QUESTION # 29
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. Understand the delta between the results from previous performance tests and the results from the expected performance improvements.
C. Adjust stakeholder expectations to be more aligned with the reality of the previous test results.
D. Realign performance test objectives with all stakeholders to meet time-to-market goals.

Answer: B

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 # 30
Which of the following is a typical performance risk associated with mainframe architectures?

A. Inconsistent loads when accessed via APIs
B. Lack of RAM
C. Misconfigured host machine
D. Slow hard disk speed

Answer: D

Explanation:
One of the key performance risks in mainframe architectures is slow hard disk speed, which can impact transaction processing, batch jobs, and database access times.
Option A (Inconsistent loads via APIs) is more relevant to distributed or cloud architectures rather than mainframes.
Option C (Misconfigured host machine) is a configuration issue, not a typical performance risk.
Option D (Lack of RAM) is less common in mainframes, which typically use optimized memory management.

NEW QUESTION # 31
You are managing the testing efforts of an existing distributed system that manages inventories of automobile and light truck tires from multiple warehouses across the country. The system is being enhanced to track incoming restocking shipments at the point of entry to the warehouse and outbound sales shipments at the point of shipment from the warehouse, all of which are executed in real-time. System loads traditionally peak on Mondays due to built-up demand from the previous weekend.
You are constructing an operational profile that emulates entities that submit large, bulk orders of greater than or equal to 1600 tires per transaction. You feel the profile you are constructing accurately reflects this type of power purchaser.
Which of the following steps must you take to ensure your operational profile is accurate?

A. Review and adjust the profile with key stakeholders prior to using it.
B. Execute the performance test with the operational profile and adjust the parameters as needed.
C. Based on the power purchaser information, create operational profiles for low and medium purchasers and use equal proportions of those profiles during the testing.
D. Aggregate the specific operational profiles into a single generic profile and use that generic profile for load testing.

Answer: A

Explanation:
To ensure an accurate operational profile, it is crucial to validate and adjust it with key stakeholders before executing tests. This step ensures that the workload realistically represents actual user behavior.
Option A (Executing the test first and adjusting later) is incorrect because adjustments should be made before execution to avoid misleading results.
Option C (Aggregating profiles into a single generic profile) removes important distinctions between different user types, reducing test accuracy.
Option D (Creating separate profiles and using equal proportions) does not match the actual power purchaser behavior, which requires a realistic representation of their higher-volume transactions.

NEW QUESTION # 32
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