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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

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 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

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.

ISTQB Certified Tester - Performance Testing Sample Questions (Q28-Q33):

NEW QUESTION # 28
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 # 29
Which of the following is usually identified by a performance test?

A. Failure to meet accessibility requirements
B. Resource bottlenecks
C. Suitability issues
D. Learnability concerns

Answer: B

Explanation:
Performance tests primarily identify resource bottlenecks such as CPU saturation, memory leaks, network congestion, and database slowdowns.
Option B (Suitability issues) is a functional requirement concern, not a performance issue.
Option C (Learnability concerns) relates to usability testing, not performance.
Option D (Accessibility requirements) falls under compliance and usability testing, not performance testing.

NEW QUESTION # 30
Which of the following is a major contributor to unreliable performance projections?

A. Differences in the hardware between the test and production environments
B. Redundancy between the test and production environments
C. Business stakeholders setting unrealistic performance goals
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 # 31
Which of the following is a typical performance risk associated with mainframe architectures?

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

Answer: B

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 # 32
Why is it important to specify how failures are handled during test execution?

A. To meet the expectations of the business stakeholders
B. To ensure that new failures are not introduced
C. To ensure all defects are captured
D. To minimize distractions during testing

Answer: B

Explanation:
During performance testing, it is crucial to define failure handling procedures to ensure that failures do not introduce additional errors into the test execution process. This helps maintain test accuracy and avoid misleading results.
Option A (Meeting stakeholder expectations) is important but not the primary reason for defining failure handling.
Option C (Capturing all defects) is a general testing principle, not specific to failure handling in performance tests.
Option D (Minimizing distractions) is not a valid reason for defining failure handling.

NEW QUESTION # 33
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