[2024年12月21日]Fast2test CTFL-PT_D問題集でPerformance Testing合格確定させる練習問題集
ISQI CTFL-PT_D実際にある問題とブレーン問題集
ISQI CTFL-PT_D（ISTQB Certified Tester Foundation Level - Specialist Performance Testing）試験は、パフォーマンステストの専門知識とスキルを評価するために設計された認定試験です。この試験は、ソフトウェアアプリケーションやシステムのテストに関与し、テストデザイン技術、テスト管理、テスト自動化などのソフトウェアテストの基本を熟知しているプロフェッショナルを対象としています。この認定はグローバルに認められ、ソフトウェアテスト業界の雇用主から高い評価を受けています。
CTFL-PT_D 認定は、パフォーマンステストのキャリアを進めたいプロフェッショナルにとって、貴重な資格です。この認定は、候補者のパフォーマンステストにおける能力と熟練度を証明する、業界でも認められた資格であり、世界中の主要な組織や企業に認知されています。CTFL-PT_D 認定試験に合格することで、プロフェッショナルは卓越性への取り組みと、高品質なパフォーマンステストサービスの提供能力を証明することができます。
質問 # 18
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 user interface.
- B. Load generation using captured communication protocols.
- C. Load generation via the Application Programming Interface (API).
- 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 # 19
Which elements are the MOST important parts of a performance testing environment?
1. Test scripts.
2. Software configuration.
3. Test data.
4. The type of environment (physical, cloud-based, virtualized).
5. Hardware configuration.
SELECT ONE OPTION
- A. II. III. V are the most important parts of the test environment.
- B. III, V are the most important parts of the test environment.
- C. II, V are the most important parts of the test environment.
- D. II. IV are the most important parts of the test environment.
正解：A
解説：
* II. Software configuration: Ensures the software under test is set up correctly, mirroring the production environment as closely as possible.
* III. Test data: Provides the necessary inputs to simulate real-world scenarios and workloads.
* V. Hardware configuration: Ensures the physical resources are adequately represented to gauge performance metrics accurately.
These elements are crucial for creating a realistic and effective performance testing environment. According to ISTQB standards, these components ensure that the testing environment accurately reflects production conditions, which is critical for obtaining valid and reliable performance test results.
質問 # 20
Associate each type of performance test (listed from 1 to 5) with part of a description that allows its characterization and/or identification (listed from A to E).
1. Endurance testing
2. Scalability testing
3. Capacity testing
4. Stress testing
5. Concurrency testing
1. Type of testing focused on the ability of a system to meet future efficiency requirements.
2. Type of testing used to evaluate a system's ability to handle reduced availability of resources.
3. Type of testing focused on the stability of the system over a specific time frame.
4. Type of testing used to determine the number of transactions a given system will support while still meeting established performance objectives.
5. Type of testing focused on the impact of situations where specific actions occur simultaneously.
SELECT ONE OPTION
- A. 1B-2A-3D-4C-5E
- B. 1C-2D-3E-4B-5A
- C. 1C - 2A - 3D - 4B - 5E
- D. 1B-2E-3A-4D-5C
正解：D
解説：
The correct associations are based on the definitions of each type of performance testing:
1. Endurance testing: Focused on the stability of the system over a specific time frame. (B)
2. Scalability testing: Focused on the ability of a system to meet future efficiency requirements. (E)
3. Capacity testing: Used to determine the number of transactions a given system will support while still meeting established performance objectives. (A)
4. Stress testing: Evaluates a system's ability to handle reduced availability of resources. (D)
5. Concurrency testing: Focused on the impact of situations where specific actions occur simultaneously. (C) Reference:
* ISTQB Performance Testing Syllabus
* ISTQB Glossary
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).
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. 1,425.00 departing passengers / hour
- B. 812.50 departing passengers / hour.
- C. 1,700 00 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 # 22
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
- A. 1A-2C-3D-4B.
- B. 1C-2A-3D-4B.
- C. 1D-2A-3C-4B
- D. 1C - 2B - 3D - 4A.
正解：B
解説：
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
質問 # 23
Identify the correspondences between the different tools (listed from 1 to 3) and their objectives and characteristics (listed from A to F).
1. Load generator.
2. Load management console.
3. Monitoring tool.
1. It monitors, records and/or analyzes the behavior of the component or system under test.
2. It creates the load and also collects the metrics for later communication.
3. It provides the control to start and stop the creation and execution of the user simulation.
4. It aggregates metrics from the various transactions that are defined within the load instances
5. It creates and runs multiple client instances that simulate user behavior.
6. It can effectively support a root cause analysis of performance in a system under test.
SELECT ONE OPTION
- A. 1B- 1F-2C-2F-3A-3D.
- B. 1A- 1E-2A-2C-2D-3F.
- C. 1B-1E-2C-2D-3A-3F.
- D. 1B-1A-2A-2D-3C-3F
正解：C
解説：
The correct associations between the tools and their objectives and characteristics are:
1. Load generator:
o 1B: It creates the load and also collects the metrics for later communication.
o 1E: It creates and runs multiple client instances that simulate user behavior.
2. Load management console:
o 2C: It provides the control to start and stop the creation and execution of the user simulation.
o 2D: It aggregates metrics from the various transactions that are defined within the load instances.
3. Monitoring tool:
o 3A: It monitors, records, and/or analyzes the behavior of the component or system under test.
o 3F: It can effectively support a root cause analysis of performance in a system under test.
Reference:
* ISTQB Performance Testing Syllabus
* ISTQB Glossary
質問 # 24
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. Gradually restrict system resources during the load test.
- B. Configure environments with multiple points of presence.
- C. Generate load through the User Interface.
- D. Generate load through the Application Programming Interface (API).
正解：C
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 # 25
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: II, IV.
- B. True statements: III, IV.
- C. True statements: 111, V.
- D. True statements: I, 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 # 26
(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 technical 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 technical stakeholders?
SELECT ONE OPTION
- A. A performance test will be conducted to verify the management application s capability to support simultaneous, i.e. concurrent, request peaks. The objective is to check that the system will be able to support the operations.
- B. The cost of the spike test will be In line with the budget submitted by the cloud service provider. The test must take place within the planned timeframe and use the disassociation algorithm previously agreed.
- 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 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.
正解：D
解説：
When presenting to technical stakeholders, it is crucial to provide detailed information about the setup, preparation, and execution of the performance test.
* Option A talks about the test environment and passenger data logistics, which, while technical, is not as focused on the specific setup for the spike test.
* Option B details the specific environment setup by the systems manager and the preparation steps, which are highly relevant to technical stakeholders who will be involved in or overseeing the technical aspects of the test.
* Option C again focuses on budget and timeline, not technical details.
* Option D is more high-level about the purpose of the test, which is not as relevant for technical stakeholders who need the specifics of the test setup.
Thus, Option B is the best fit as it provides the necessary technical details for the spike test environment and preparation steps.
質問 # 27
(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. 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.
- B. 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.
- C. 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.
- D. 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.
正解：B
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 # 28
What is the benefit of transaction nesting for performance testing?
SELECT ONE OPTION
- A. The ability to measure individual and aggregate activities.
- B. The ability to measure reflection time to better represent when a real user performs an action.
- C. The possibility to measure the time elapsed for the transaction.
- D. The possibility to measure the evolution of response time with the load.
正解：A
解説：
Transaction nesting allows performance testers to measure both individual activities within a transaction and the aggregate performance of the entire transaction. This is beneficial because it helps identify specific areas where performance issues may be occurring. By understanding both the granular and overall performance, testers can better pinpoint bottlenecks and optimize the system. This aligns with the ISTQB principles of comprehensive performance measurement and analysis to ensure system reliability and efficiency.
質問 # 29
(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 has run a performance test cycle. The following metrics have been collected:
Total virtual users: 10,000.
* Status of the simulated users.
o Total number of users for whom all transactions have been completed: 89%.
* Transaction response time, o Check-in
* Response time < 1 second: 60%
* Response time < 2 seconds: 70%
* Response time < 3 seconds: 88%
* Response time < 5 seconds: 90%
* Response time < 10 seconds: 95%
Question
Given this information, how should Natalie present the results to those involved?
SELECT ONE OPTION
- A. The percentage of completed transactions is close to the acceptance value, an improvement is required. The transactions associated with the check in are below the acceptance value, an improvement is required.
- B. The percentage of completed transactions is close to the acceptance value, no improvement is required. The transactions associated with the check-in are below the acceptance value, no improvement is required.
- C. The percentage of completed transactions is close to the acceptance value, an improvement is required. The transactions associated with the check-in are close to the acceptance value, no Improvement is required.
- D. The percentage of completed transactions is so close to the acceptance value that no improvement is required. The transactions associated with the check-in are below the acceptance value, a minimum improvement is required.
正解：A
解説：
When presenting performance test results, it is vital to compare the collected metrics against the predefined acceptance criteria and highlight areas needing improvement.
* Option A incorrectly suggests that no improvement is required for completed transactions, even though the acceptance value isn't met.
* Option B rightly states that improvements are required for completed transactions but incorrectly suggests no improvement is needed for check-in transactions.
* Option C suggests no improvements are needed for either metric, which is incorrect as both are below the acceptance values.
* Option D correctly identifies that both the percentage of completed transactions and the check-in transactions are below the acceptance values and require improvement.
Therefore, Option D accurately reflects the need for improvements in both metrics to meet the acceptance criteria.
質問 # 30
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 requirements activities and again before running the performance test.
- B. After design but before coding.
- C. Repeatedly throughout the development phases (including requirements activities) and the performance test itself.
- D. During the analysis and design activities as well as, again, before each performance test cycle.
正解：C
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 # 31
ich ONE of the following options is a specific performance risk in mobile applications?
ONE OPTION
- A. Inefficient Implementation of algorithms.
- B. Network congestion.
- C. Slow data flow from sensors.
- D. Limited resources.
正解：D
解説：
Mobile applications often face performance risks due to the limited resources available on mobile devices, such as CPU, memory, battery, and network bandwidth. These constraints can significantly impact the performance of mobile applications, leading to slower response times and degraded user experiences. ISTQB performance testing guidelines emphasize considering the specific resource limitations of mobile environments to ensure comprehensive performance evaluation and optimization.
質問 # 32
If Emily is conducting a performance test to determine that a system exposed to a load can respond to a high number of concurrent users during short periods of time that occur on specific days and at specific times, and then return to a stable state.
What type of performance testing is Emily conducting?
SELECT ONE OPTION
- A. Concurrency testing.
- B. Load testing.
- C. Endurance testing
- D. Spike testing.
正解：D
解説：
Spike testing involves subjecting a system to a significant increase in load for short periods of time to determine if it can handle sudden spikes in traffic. Emily's scenario of testing a system's response to a high number of concurrent users during specific periods and then returning to a stable state fits the description of spike testing.
Reference:
* ISTQB Performance Testing Syllabus
* ISTQB Glossary
質問 # 33
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. LDAP.
- B. MMS.
- C. RTE.
- D. WSCL.
正解：C
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 # 34
In this question, consider that test scripts are generated from a protocol level recording. At the end of the recording, an attempt was made to execute the recorded scripts without any processing, and it was not possible to play them back.
Question
What could be the reason why it is not possible to play back the script?
SELECT ONE OPTION
- A. The test script has not been correlated.
- B. The length of the script.
- C. The missing Initialization section.
- D. The lack of business logic.
正解：A
質問 # 35
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ISTQB Certified Tester Foundation Level - Specialist Performance Testing (CTFL-PT_D) 認定試験は、ソフトウェアテストの分野における高い認知度を持つ認定資格です。性能テストに特化した専門家の知識とスキルを検証することを目的としています。この認定試験は、ソフトウェアテストのベストプラクティスや標準を推進するグローバルな組織である国際ソフトウェアテスト資格委員会（ISTQB）によって提供されています。
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