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2024年最新のな厳密検証された合格させるCTFL-PT_D試験にはリアル問題と解答
CTFL-PT_D試験は、40の複数選択の質問で構成され、60分間にわたって管理されます。候補者は、試験で少なくとも65％を獲得して、合格して認定を受けなければなりません。試験に合格すると、候補者はISTQBから証明書を受け取ります。これは、ソフトウェアテストの卓越性の基準として世界中で認識されています。
質問 # 14
In which activity of the testing process is the scope of performance testing established?
SELECT ONE OPTION
- A. Test planning.
- B. Test analysis.
- C. Test monitoring and control.
- D. Test design.
正解：A
解説：
The scope of performance testing is established during the test planning phase. During this phase, testers define the objectives, resources, schedule, and scope of the testing activities. This includes identifying the specific performance requirements, determining the test environment, and outlining the test strategy. According to ISTQB guidelines, effective test planning ensures that the performance testing efforts are aligned with the project goals and stakeholder expectations, setting a clear direction for subsequent testing activities.
質問 # 15
Select the architecture that, in addition to the virtualized systems, could present performance risks associated with virtualization.
SELECT ONE OPTION
- A. Client-server systems.
- B. Multi Tier systems.
- C. Dynamic/cloud-based systems.
- D. Distributed systems.
正解：C
解説：
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.
質問 # 16
Given the following list of approaches to load generation, select the load generation approach that is LEAST reproducible and accurate.
SELECT ONE OPTION
- A. Load generation via the Application Programming Interface (API).
- B. Load generation via the user interface.
- C. Load generation using captured communication protocols.
- D. Load generation using crowds.
正解：D
解説：
Load generation using crowds (crowdsourcing) is the least reproducible and accurate approach. This method involves using a large number of real users to generate load on the system. The variability in network conditions, user behavior, and device capabilities makes it difficult to reproduce the exact same load conditions consistently.
Reference:
* ISTQB Performance Testing Syllabus
* ISTQB Advanced Level Test Automation Engineer Syllabus
質問 # 17
In which activity of the testing process is the scope of performance testing established?
SELECT ONE OPTION
- A. Test planning.
- B. Test analysis.
- C. Test monitoring and control.
- D. Test design.
正解：A
解説：
The scope of performance testing is established during the test planning phase. During this phase, testers define the objectives, resources, schedule, and scope of the testing activities. This includes identifying the specific performance requirements, determining the test environment, and outlining the test strategy. According to ISTQB guidelines, effective test planning ensures that the performance testing efforts are aligned with the project goals and stakeholder expectations, setting a clear direction for subsequent testing activities.
質問 # 18
(REFER TO BASE SCENARIO 2): When you refer to Base Scenario 2, you are referring to the description and only the description, without any modification.
Question specific constraints: (specific constraints are not part of the Base Scenario and are specific to this question).
Throughout the month of January (31 days), the company performed 3,100 departure operations from the Capital City Airport. These departure operations transported 465,000 passengers during the hours of operation, from 07:00 to 23:00.
The departing passengers (one of the most relevant operational profiles) will access the front-end of the application to check in for their flight. It is known that 30% of departing passengers reconnect after checking in to request the boarding pass to be resent or printed.
Question
How many departing passengers access the front-end per hour?
SELECT ONE OPTION
- A. 1,700 00 departing passengers / hour.
- B. 1,425.00 departing passengers / hour
- C. 812.50 departing passengers / hour.
- D. 625.00 departing passengers / hour.
正解：D
解説：
To determine how many departing passengers access the front-end per hour, including those reconnecting:
1. Total Departing Passengers in January:
o 465,000 passengers transported throughout January.
2. Duration of Operations in January:
o Operating hours: 07:00 to 23:00, which equals 16 hours per day.
o Total days in January: 31 days.
o Total operating hours in January: 31 days * 16 hours/day = 496 hours.
3. Passengers Per Hour:
o Total passengers: 465,000.
o Total hours of operation: 496 hours.
o Passengers per hour: 465,000 passengers / 496 hours = 937.5 passengers/hour.
4. Including Reconnecting Passengers:
o 30% of departing passengers reconnect for a boarding pass.
o Reconnecting passengers: 30% of 937.5 passengers/hour = 0.30 * 937.5 = 281.25 passengers/hour.
o Total front-end accesses per hour: 937.5 + 281.25 = 1,218.75 passengers/hour.
Given the available options, the closest correct value is A. 1,425.00 departing passengers / hour.
質問 # 19
Base Scenario 1: This Base Scenario 1 is used for 2 questions throughout this exam. When you refer to Base Scenario 1, you are referring to this description and only this description, without any modification.
k given project for the development of a management software that will have a multilayer architecture will enable Its users to Install it in multiple locations, nationally and internationally - each installation can operate Independently and communicate with other instances in a selective way. Each installation shall have a high processing capacity.
Question specific constraints: (specific constraints are not part of the Base Scenario and are specific to this question).
* The project follows a sequential development life cycle model.
Question
Which is the right moment in the project to analyze and evaluate the performance risks?
SELECT ONE OPTION
- A. During the analysis and design activities as well as, again, before each performance test cycle.
- B. Repeatedly throughout the development phases (including requirements activities) and the performance test itself.
- C. During the requirements activities and again before running the performance test.
- D. After design but before coding.
正解：B
解説：
Performance risks should be analyzed and evaluated continuously throughout the development lifecycle, especially in projects with high processing capacity and independent operation across multiple locations. This ongoing evaluation helps to identify and mitigate risks early and adapt to any changes that occur during development.
Reference:
* ISTQB Performance Testing Syllabus
* ISTQB Advanced Level Test Manager Syllabus
質問 # 20
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
- A. True statements: 111, V.
- B. True statements: III, IV.
- C. True statements: I, IV.
- D. True statements: II, IV.
正解：B
解説：
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
質問 # 21
(REFER TO BASE SCENARIO 2): When you refer to Base Scenario 2. you are referring to the description and only the description, without any modification.
Question specific constraints: (specific constraints are not part of the Base Scenario and are specific to this question).
* Natalie should make a presentation to the business stakeholders In order to explain the performance test plan.
Question
Which ONE of the following options contains information that should be included in Natalie's presentation to the business stakeholders?
SELECT ONE OPTION
- A. The cost of the spike test will be in line with the budget submitted by the cloud service provider. The test must take place in the planned timeframe and use the disassociation algorithm, that were previously agreed on.
- B. A spike test shall be conducted in the performance test environment set up by the systems manager. Preparation includes installation from the clone of the virtual machine identified for this purpose.
- C. A spike test shall be conducted in a test environment equivalent to the production environment. Passengers shall be removed from the production environment, disassociated and imported Into the test environment.
- D. A performance test will be conducted to verify the management applications capability to support simultaneous, i.e concurrent, request peaks. The objective of this test (spike test) is to check that the system will be able to support the operations.
正解：D
解説：
When preparing a presentation for business stakeholders, it is essential to focus on high-level objectives and outcomes that align with business goals. In the context of performance testing, the stakeholders are primarily concerned with ensuring that the system can handle peak loads and maintain operational integrity.
* Option A talks about the setup of the test environment and the logistics of passenger data, which is too technical for business stakeholders.
* Option B focuses on budget and timeline, which are relevant but do not directly address the performance test's purpose and objectives.
* Option C clearly states the purpose of the performance test (spike test) and its objective, which is to verify that the system can support concurrent request peaks, directly aligning with business interests.
* Option D again focuses on technical details about the test environment setup, which is not the primary concern for business stakeholders.
Therefore, Option C is the most appropriate choice as it succinctly communicates the performance test's objective and its relevance to business operations.
質問 # 22
(REFER TO BASE SCENARIO 2): IV/rerj you refer to Base Scenario 2, you are referring to the description and only the description, without any modification.
Question specific constraints: (specific constraints are not part of the Base Scenario and are specific to this question).
Throughout the month of January (31 days), the company performed 3,100 departure operations from the Capital City Airport. These departure operations transported 465,000 passengers during the hours of operation, from 07:00 to 23:00.
The departing passengers (one of the most relevant operational profiles) will access the front-end of the application to check in for their flight. It is known that 30% of departing passengers reconnect after checking in to request the boarding pass to be resent or printed.
Question
A performance test will be carried out for which 11,700 transactions will be necessary to simulate an operation similar to that described in the base scenario and the restrictions of this question. How many virtual users will be necessary to achieve this number of transactions and the conditions of the operations?
SELECT ONE OPTION
- A. 9,000
- B. 11,700
- C. 8,500
- D. 23,400
正解：B
解説：
To determine the number of virtual users necessary for the performance test:
1. Total Transactions Needed:
o 11,700 transactions are required to simulate the operation.
2. Conditions of Operations:
o The simulation should reflect the realistic load of departing passengers accessing the front-end application.
3. Virtual Users:
o The number of virtual users required is equal to the total number of transactions to be generated in the test since each virtual user performs one transaction.
Thus, the correct answer is B. 11,700 virtual users will be necessary to achieve the specified number of transactions under the given conditions.
質問 # 23
What are the main activities of performance test execution?
1. Monitoring all parts of the environment.
2. Setting up the load generation and monitoring tools.
3. Collecting and keeping all results and information related to the test.
4. Generation of a load against the SUT according to a load profile.
5. Parameterize the test scripts.
6. Setting up the system under test.
SELECT ONE OPTION
- A. The following are performance test activities: III, IV.
- B. The following are performance test activities: I. V, VI.
- C. The following are performance test activities: I, III. IV.
- D. The following are performance test activities: I, III, VI.
正解：C
解説：
The main activities of performance test execution include:
* I. Monitoring all parts of the environment: Ensures that performance metrics are collected from various components to provide a comprehensive view of the system's performance.
* III. Collecting and keeping all results and information related to the test: Essential for analyzing the performance test outcomes and identifying areas for improvement.
* IV. Generation of a load against the SUT according to a load profile: Simulates the expected user load to assess how the system performs under typical and peak conditions.
These activities align with ISTQB guidelines, which emphasize thorough monitoring, data collection, and load generation as critical components of effective performance testing.
質問 # 24
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
- A. RTE.
- B. LDAP.
- C. MMS.
- D. WSCL.
正解：A
解説：
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
質問 # 25
Choose the VALID description of the ramp-up concept.
SELECT ONE OPTION
- A. Stage of finishing the test.
- B. Stage of reaching the stationary state.
- C. Stage of exit from a stationary state by increasing the number of concurrent users.
- D. Technique in which the load on the system is increased to a certain value in the shortest possible time.
正解：C
解説：
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
質問 # 26
Select the ONE option that describes the mechanism used to extract metrics associated with deadlocks and multi threading problems SELECT ONE OPTION
- A. Scan server logs and compile metrics from them.
- B. Direct measurement through a performance monitoring tool.
- C. Direct measurement from a dynamic performance test.
- D. Analysis and elaboration of metrics from a dynamic performance test.
正解：B
解説：
Direct measurement through a performance monitoring tool is the most effective mechanism for extracting metrics associated with deadlocks and multithreading problems. These tools can provide real-time insights into the system's performance, highlighting issues such as thread contention, deadlocks, and resource bottlenecks. ISTQB performance testing principles advocate the use of specialized monitoring tools to capture detailed performance metrics, facilitating the identification and resolution of complex multithreading issues.
質問 # 27
Which ONE of the following mechanisms is used to make the load test represent a load situation in a real production environment?
SELECT ONE OPTION
- A. Generate load through the User Interface.
- B. Generate load through the Application Programming Interface (API).
- C. Configure environments with multiple points of presence.
- D. Gradually restrict system resources during the load test.
正解：A
解説：
Generating load through the User Interface (UI) is essential to replicate a real production environment accurately. This approach simulates real user interactions with the system, providing a more realistic assessment of how the system performs under actual usage conditions. According to ISTQB standards, using the UI to generate load helps identify performance issues that users might experience, ensuring that the test results are relevant and actionable.
質問 # 28
In which activity of the testing process are specific test conditions identified for performance testing?
SELECT ONE OPTION
- A. Test planning.
- B. Test analysis.
- C. Test monitoring and control.
- D. Test design.
正解：B
解説：
In the testing process, specific test conditions for performance testing are identified during the Test Analysis phase. This phase involves reviewing and analyzing the test basis, such as requirements, architecture, and design, to identify the test conditions, which are the items or events of a component or system that could be verified by one or more test cases.
Reference:
* ISTQB Foundation Level Syllabus
* ISTQB Glossary
質問 # 29
Which ONE of the following options represents a principle of performance testing?
SELECT ONE OPTION
- A. The tests can only be conducted, where resources allow, on complete systems and test environments that are representative of the production system.
- B. The tests must be aligned with the defined expectations of different stakeholder groups, users In particular, system designers and operations staff
- C. The tests must yield results that are both understandable and can be readily compared to the requirements desired by the technical team.
- D. The tests must be reproducible. Identical results must be obtained by repeating the tests on an unchanged system.
正解：D
解説：
Reproducibility is a fundamental principle of performance testing, ensuring that identical results are obtained when tests are repeated on an unchanged system. This principle is critical for verifying the reliability and consistency of performance test outcomes, allowing testers to confidently identify and address performance issues. ISTQB standards emphasize reproducibility to ensure that performance testing provides accurate and actionable insights.
質問 # 30
Choose the ONE option that describes the example of a transaction. The scenario for this question is the transfer of an amount of money from one bank account to another.
SELECT ONE OPTION
- A. Request transfer of X Monetary Units from account K to account P; increase the balance of account P by X Monetary Units. If the increase in account P has been correctly applied, then apply changes.
- B. Request transfer of X Monetary Units from account K to account P; reduce the balance of account K by X Monetary Units; increase the balance of account P by X Monetary Units. If the reduction or increase has been correctly applied, then apply changes
- C. Request transfer of X Monetary Units from account K to account P; decrease the balance of account K by X Monetary Units. If the reduction in account K has been correctly applied, then apply changes.
- D. Request transfer of X Monetary Units from account K to account P; reduce the balance of account K by X Monetary Units; Increase the balance of account P by X Monetary Units. If the reduction and Increase have been correctly applied, then apply changes.
正解：B
解説：
A transaction in performance testing involves a series of actions that need to be completed to ensure data consistency and correctness. Option D captures the complete and atomic nature of a transaction by ensuring that both the reduction in account K and the increase in account P are correctly applied before committing the changes. This reflects the principles of ACID (Atomicity, Consistency, Isolation, Durability) in database transactions, which are crucial for ensuring reliability and correctness in financial operations as covered in ISTQB performance testing standards.
質問 # 31
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ISQI CTFL-PT_D（ISTQB認定テスターファンデーションレベル-スペシャリストパフォーマンステスト）試験は、ソフトウェアテストの重要な要素であるパフォーマンステストに焦点を当てた認定試験です。この認定は、ソフトウェアアプリケーションのテストに関わり、さまざまな条件下で最適なパフォーマンスを発揮することを保証する責任を持つプロフェッショナルを対象としています。CTFL-PT_D認定は、個人がパフォーマンステストを効果的に設計、実行、分析するために必要なスキルと知識を提供します。
ISQI CTFL-PT_D認定試験は、パフォーマンステストにおける個人の習熟度を検証する重要な認定です。これは、パフォーマンステストのスキルを向上させようとしているソフトウェアテスター、テストアナリスト、テストエンジニア、テストマネージャー、品質保証の専門家に最適な世界的に認められた認定です。認定試験は、さまざまなパフォーマンステストのトピックをカバーしており、ISTQBシラバスに基づいています。
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