CTFL-PT_D Exam Questions and Answers

QUESTION: 6

Choose the VALID description of the ramp-up concept.
SELECT ONE OPTION

Stage of reaching the stationary state.
Stage of finishing the test.
Stage of exit from a stationary state by increasing the number of concurrent users.
Technique in which the load on the system is increased to a certain value in the shortest possible time.

Answer(s): C

Explanation:

Ramp-up in performance testing refers to the phase where the number of virtual users is gradually increased to simulate the increase in load on the system. This is essential for determining how the system behaves under varying levels of stress. The correct description of the ramp-up concept aligns with option C, which involves increasing the number of concurrent users to simulate a transition from a steady state to a higher load scenario.

Reference:

- ISTQB Performance Testing Syllabus
- ISTQB Glossary

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QUESTION: 7

Which of following statements (listed I. to V.) are TRUE in characterizing result verification and error handling in a performance test script?
1. It is not necessary to verify that the script Is doing what It is supposed to do using Indirect methods, such as a database check.
2. The scripts should always include logical rules.
3. Manual intervention may be required to carry out remedial action in the event of an error.
4. Performance scripts should be subject to quality control and testing, just like any software product.
5. The default error handling of the performance test tools Is sufficient, so no additional checks need to be introduced.
SELECT ONE OPTION

True statements: II, IV.
True statements: 111, V.
True statements: III, IV.
True statements: I, IV.

Answer(s): C

Explanation:

Performance test scripts require meticulous verification and error handling to ensure they function as intended.
- Statement III: Manual intervention may be required to carry out remedial action in the event of an error. This is true as certain errors might require human judgment to resolve.
- Statement IV: Performance scripts should be subject to quality control and testing, just like any software product. This ensures the reliability and effectiveness of the performance test scripts.
Statements I, II, and V have inaccuracies:
- Statement I: Verification using indirect methods can be necessary.
- Statement II: While logical rules are important, they are not always mandatory.
- Statement V: Default error handling may not be sufficient, and additional checks can be crucial.

Reference:

- ISTQB Performance Testing Syllabus
- ISTQB Advanced Test Automation Engineer Syllabus

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QUESTION: 8

If a performance test is testing the response time of an application to be connected through remote access, which protocol is being used?

SELECT ONE OPTION

MMS.
RTE.
WSCL.
LDAP.

Answer(s): B

Explanation:

RTE (Remote Terminal Emulation) protocol is used when testing the response time of an application connected through remote access. It simulates interactions with applications over a network as if they were being accessed locally, making it suitable for remote access scenarios.

Reference:

- ISTQB Performance Testing Syllabus
- ISTQB Glossary

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QUESTION: 9

Identify the correspondences between architectures (from 1 to 4) and their characteristic risks (from A to D).
1. Dynamlc/cloud-based systems.
2. Client-server systems.
3. Multi-Tier systems.
4. Distributed systems.
1. Potential problems due to firewalls, packet inspection and server load balancing.
2. Critical workflows or dataflows to, from, or through unreliable or unpredictable remote servers, especially when such servers suffer periodic connection problems or intermittent periods of intense load.
3. Failures related to the correct configuration of features such as distribution, virtualization and scaling, during the Initial configuration or subsequent updates.
4. Inadequate bandwidth or capacity on any individual server.
SELECT ONE OPTION

1D-2A-3C-4B
1C - 2B - 3D - 4A.
1A-2C-3D-4B.
1C-2A-3D-4B.

Answer(s): D

Explanation:

The characteristic risks associated with different architectures are as follows:
1. Dynamic/cloud-based systems: Critical workflows or dataflows to, from, or through unreliable or unpredictable remote servers, especially when such servers suffer periodic connection problems or intermittent periods of intense load. (C)
2. Client-server systems: Potential problems due to firewalls, packet inspection, and server load balancing. (A)
3. Multi-Tier systems: Failures related to the correct configuration of features such as distribution, virtualization, and scaling, during the initial configuration or subsequent updates. (D)
4. Distributed systems: Inadequate bandwidth or capacity on any individual server. (B)

Reference:

- ISTQB Performance Testing Syllabus
- ISTQB Glossary

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QUESTION: 10

Select the architecture that, in addition to the virtualized systems, could present performance risks associated with virtualization.
SELECT ONE OPTION

Dynamic/cloud-based systems.
Multi Tier systems.
Client-server systems.
Distributed systems.

Answer(s): A

Explanation:

Dynamic and cloud-based systems introduce performance risks associated with virtualization due to the inherent nature of resource allocation and scalability in these environments. Virtualized systems often share physical resources, leading to potential contention and unpredictable performance impacts. These risks are more pronounced in dynamic/cloud-based architectures where resources are frequently allocated and deallocated based on demand, potentially causing latency, resource bottlenecks, and performance variability. ISTQB guidelines on performance testing emphasize understanding these risks to ensure reliable performance outcomes.

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iSQI CTFL-PT_D Exam (page: 2) iSQI ISTQB Certified Tester Foundation Level - Specialist Performance Testing Updated on: 12-Feb-2026

QUESTION: 6

Explanation:

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QUESTION: 7

Explanation:

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QUESTION: 8

Explanation:

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QUESTION: 9

Explanation:

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QUESTION: 10

Explanation:

iSQI CTFL-PT_D Exam (page: 2)
iSQI ISTQB Certified Tester Foundation Level - Specialist Performance Testing
Updated on: 12-Feb-2026