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CT-PT Mock Exam - Valid CT-PT Exam Question

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

NEW QUESTION # 27
Which of the following is usually identified by a performance test?

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

Answer: D

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 # 28
Which of the following is a best practice to include in performance test scripts when verifying results?

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

Answer: D

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 # 29
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 # 30
What should be captured for batch processing performance metrics?

A. Average percentage of network latency
B. Throughput and wait times
C. Number of concurrent virtual users
D. Number of records deleted

Answer: B

Explanation:
For batch processing performance metrics, the two most important factors are:
Throughput - Measures the number of transactions processed over time.
Wait times - Evaluates delays in processing batches.
Option B (Number of records deleted) is irrelevant unless batch processing specifically involves deletions.
Option C (Network latency percentage) applies to real-time transaction processing, not batch jobs.
Option D (Concurrent virtual users) applies more to load testing rather than batch performance.

NEW QUESTION # 31
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. Error logging will decrease.
C. The size of the database will gradually 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 # 32
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