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ISTQB CT-PT Exam Syllabus Topics:

Topic
Details

Topic 1

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 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

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 4

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.

ISTQB Certified Tester - Performance Testing Sample Questions (Q16-Q21):

NEW QUESTION # 16
You are heading the testing effort for a system that manages the air/fuel ratio of direct-injection fuel devices built specifically for high-altitude rescue helicopter engines. At altitude, the system must be able to perform in order to make enough air/fuel ratio adjustments per millisecond between fuel and both an on-board source and available ambient air in order to prevent an engine stall due to oxygen starvation. The system is following a sequential development lifecycle.
For this safety-critical software, when is the appropriate point in the lifecycle to identify and define the performance goals?

A. After test readiness has been achieved, but before system testing starts
B. During the software design phase when the requirements are set and the design is being defined
C. During the requirements phase when the business stakeholders have the opportunity to agree
D. At the very beginning of the project during the concept stage

Answer: C

Explanation:
For safety-critical software, performance goals must be identified as early as the requirements phase. This ensures that performance constraints are well understood and accounted for throughout development.
Option A (After test readiness but before system testing) is too late, as requirements should be defined before coding begins.
Option C (During the concept stage) is too early, as details may not be concrete.
Option D (During software design) is useful but should be preceded by a proper definition during the requirements phase.

NEW QUESTION # 17
Which of the following is a best practice to include in performance test scripts when verifying results?

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

Answer: B

Explanation:
One of the best practices in performance test scripting is to validate that correct data is recorded in the database after execution. This ensures that performance issues do not impact data integrity.
Option A (Increasing the number of scripts) may provide more coverage but does not verify accuracy.
Option C (Adding transaction timers) is useful for performance monitoring but does not ensure correct data entry.
Option D (Holding the development team accountable) is a management responsibility, not a scripting best practice.

NEW QUESTION # 18
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. Established HTTP response per second goals that will have acceptable minimum, maximum, and average response times
B. The risks that may exist due to platform differences between the test environment and the production environment
C. A comprehensive list of support staff to be available during performance testing, including key members of the application development team
D. A test plan that includes specific technical specifications for the computing hardware to be used for performance testing

Answer: B

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 # 19
What is the primary purpose of a load generator?

A. Support root cause analysis when performance degradation is encountered
B. Create a steady and consistent background load on the system
C. Record and analyze the behavior of the system as it is executing the prescribed tests
D. Simulate user behavior in accordance with the defined operational profile

Answer: D

Explanation:
A load generator is responsible for simulating virtual users and applying workloads to a system as defined by an operational profile. This allows testers to analyze how the system behaves under different load conditions.
Option A (Background load) is incorrect because load generators create simulated user interactions, not just background noise.
Option C (Record and analyze behavior) is the role of monitoring tools, not a load generator.
Option D (Support root cause analysis) is incorrect because root cause analysis is done after the load test, using monitoring tools.

NEW QUESTION # 20
Which type of performance test measures the system's ability to handle increasing levels of load?

A. Spike testing
B. Load testing
C. Elevation testing
D. Endurance testing

Answer: B

Explanation:
Load testing assesses a system's ability to handle gradually increasing levels of load and ensures that it meets performance expectations under normal and peak conditions.
Option B (Elevation testing) is incorrect because this term does not exist in ISTQB performance testing terminology.
Option C (Spike testing) focuses on sudden increases in load rather than gradual scaling.
Option D (Endurance testing) examines how a system performs over an extended period, rather than gradual load increases.

NEW QUESTION # 21
......

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Sophia Murphy Sophia Murphy

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