FREE PDF QUIZ 2025 ISTQB CT-PT: UPDATED EXAM ISTQB CERTIFIED TESTER - PERFORMANCE TESTING DURATION

Free PDF Quiz 2025 ISTQB CT-PT: Updated Exam ISTQB Certified Tester - Performance Testing Duration

Free PDF Quiz 2025 ISTQB CT-PT: Updated Exam ISTQB Certified Tester - Performance Testing Duration

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ISTQB CT-PT Exam Syllabus Topics:

TopicDetails
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
  • 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 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
  • 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.

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ISTQB Certified Tester - Performance Testing Sample Questions (Q29-Q34):

NEW QUESTION # 29
Which of the following performance script types measures network response times?

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

Answer: B

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 # 30
What challenge must be considered when using crowds to emulate load generation?

  • A. The load generation will be difficult to reproduce.
  • B. This technique is more precise than other methods of load generation.
  • C. The load generation method is less sensitive to changes in the system under test.
  • D. This type of load generation is more suitable for mainframe applications.

Answer: A

Explanation:
Crowd-based load generation relies on real users from different locations, making test conditions highly variable. This makes it difficult to reproduce the same test scenario multiple times under identical conditions.
Option B (Less sensitive to changes) is incorrect because crowd-based load is highly sensitive to external conditions (network, device types, etc.).
Option C (Suitable for mainframe applications) is incorrect because crowd-based load testing is typically used for web and cloud applications, not mainframes.
Option D (More precise than other methods) is incorrect because crowd-based load testing lacks precision due to real-world inconsistencies.


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 preparing a presentation to the business stakeholders, outlining your performance testing strategy.
Which of the following is appropriate to present to this audience?

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

Answer: C

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 # 32
Which of the following is typically the result of oversaturation of system resources during performance testing?

  • A. Response time will gradually improve over a period of time.
  • B. The size of the database will gradually decrease.
  • C. Error logging will decrease.
  • D. Response time will be slow under significant load levels.

Answer: D

Explanation:
When system resources (e.g., CPU, RAM, I/O) are oversaturated, the system becomes overloaded, leading to increased response times and poor application performance.
Option A (Gradual improvement of response time) is incorrect because performance degrades under heavy load.
Option C (Error logging decreases) is unlikely; in most cases, errors increase when systems reach their limits.
Option D (Database size decreases) is unrelated to performance saturation.


NEW QUESTION # 33
What is typically the result of oversaturation of system resources during performance testing?

  • A. Response time will gradually improve over a period of time.
  • B. The size of the database will gradually decrease.
  • C. Error logging will decrease.
  • D. Response time will be slow under significant load levels.

Answer: D

Explanation:
When system resources are oversaturated (e.g., CPU, RAM, or network bandwidth), response times will degrade because the system struggles to process requests efficiently. This is a key performance bottleneck indicator.
Option A is incorrect because response times do not improve under heavy load; they typically worsen.
Option C is incorrect because error logging may actually increase rather than decrease under stress.
Option D is incorrect because database size is independent of system saturation unless records are actively purged.


NEW QUESTION # 34
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