Dec-2024 ISQI CTFL-PT_D Actual Questions and 100% Cover Real Exam Questions
CTFL-PT_D Free Exam Questions and Answers PDF Updated on Dec-2024
The CTFL-PT_D certification covers a wide range of topics, including performance testing concepts, types of non-functional testing, testing tools, and performance testing process. CTFL-PT_D exam is suitable for software testers who want to specialize in performance testing and are looking to enhance their knowledge and skills in this field. ISTQB Certified Tester Foundation Level - Specialist Performance Testing certification is also suitable for those who want to move into a performance testing role or are responsible for ensuring the performance of software applications.
NEW QUESTION # 10
In which activity of the testing process are specific test conditions identified for performance testing?
SELECT ONE OPTION
- A. Test design.
- B. Test analysis.
- C. Test monitoring and control.
- D. Test planning.
Answer: B
Explanation:
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
NEW QUESTION # 11
Identify the correspondences between the aspects (listed from 1 to 4) and factors to be considered (listed from A to D) when selecting performance testing tools.
1. Compatibility.
2. Scalability.
3. Understandability.
4. Monitoring.
1. Level of technical knowledge needed to use the tool.
2. Correlation of the monitoring with the defined transactions.
3. Protocols.
4. Ability to generate load from multiple points of presence.
SELECT ONE OPTION
- A. 1B-2D-3A-4C.
- B. 1D-2C-3A-4B.
- C. 1C-2D-3B-4A.
- D. 1C-2D-3A-4B.
Answer: D
Explanation:
The correct associations between the aspects and factors to be considered when selecting performance testing tools are:
1. Compatibility: Protocols. (C)
2. Scalability: Ability to generate load from multiple points of presence. (D)
3. Understandability: Level of technical knowledge needed to use the tool. (A)
4. Monitoring: Correlation of the monitoring with the defined transactions. (B) Reference:
* ISTQB Performance Testing Syllabus
* ISTQB Glossary
NEW QUESTION # 12
Select the architecture that, in addition to the virtualized systems, could present performance risks associated with virtualization.
SELECT ONE OPTION
- A. Dynamic/cloud-based systems.
- B. Client-server systems.
- C. Distributed systems.
- D. Multi Tier systems.
Answer: 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.
NEW QUESTION # 13
Scenario
James is participating in a project In which a web portal is being developed to sell tickets for different types of events.
Once the sale has been made and confirmed by the payment channel, the information must be available to the rest of the types of user (for example, the managers of each event) In a maximum time of 2 seconds (It Is expected that this temporal constraint will be met in 95% of the transactions and that 90% of the transactions will be completed at 100%).
Ticket sales take place during a time window (start date and time, end date and time) that is announced in advance. At the beginning of this window, there are peaks of 150 users per minute, for 5 minutes.
Question
Choose the option that enables James to meet the performance target.
SELECT ONE OPTION
- A. Create a baseline for maximum attendance for the ticketing transaction.
- B. Create a baseline corresponding to the total number of users registered in the production database.
- C. There is no need to set a baseline for the peak attendance, it is a known value.
- D. Establish the acceptance criteria for response times.
Answer: A
Explanation:
Creating a baseline for maximum attendance helps ensure that the system can handle peak loads. This baseline acts as a reference point for performance testing, allowing James to simulate and measure the system's behavior under expected peak conditions. By doing this, he can verify that the system meets the performance target of handling 150 users per minute within the specified time constraints. Establishing such baselines is a fundamental practice in performance testing, as emphasized by the ISTQB guidelines.
NEW QUESTION # 14
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.
Answer: D
Explanation:
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.
NEW QUESTION # 15
Choose the MOST suitable description of the structure of a performance test script SELECT ONE OPTION
- A. The clean-up section Is the section in which everything is prepared for the main part In order to comply with the preconditions, the main sections can be executed several times and the completion section is the section that takes care of recording the results In the corresponding repository.
- B. The Initialization section is the section in which everything Is prepared for the main part, the main sections can be executed several times and the clean-up section is the section where the necessary steps are carried out to finish the test correctly.
- C. The initialization section Is the section in which everything Is prepared for the main part, the main sections can be executed several times and the finalization section is the section in charge of registering the results In the corresponding repository.
- D. The Initialization section Is the section in which everything Is prepared for the main part, the main sections are executed only once, because If It is necessary to repeat any action the whole script or part of it must be repeated and the clean-up section Is the section where the necessary steps are carried out to finish the test correctly.
Answer: B
Explanation:
A performance test script generally consists of three main sections:
* Initialization: This section sets up the preconditions and prepares the system for the main test actions. It ensures that the environment and the test are ready to execute.
* Main section: This is where the core test actions occur. These actions can be executed multiple times to simulate different loads and scenarios.
* Clean-up: This section includes steps to properly close the test, such as releasing resources, resetting states, and logging results.
This structure ensures that performance tests are conducted systematically and efficiently, as emphasized by ISTQB performance testing standards.
NEW QUESTION # 16
Identify the activity that is NOT part of the performance test preparation.
SELECT ONE OPTION
- A. Virtualizing the servers.
- B. Deploying the environment.
- C. Setting up the system under test.
- D. Setting up the load generation and monitoring tools and making sure that all the necessary information will be collected.
Answer: A
Explanation:
Virtualizing the servers is not typically part of performance test preparation. Performance test preparation generally involves activities such as deploying the test environment, setting up the system under test, and configuring load generation and monitoring tools to ensure accurate data collection. While virtualization can be an aspect of the overall infrastructure setup, it is not a direct step in preparing for performance testing. ISTQB performance testing guidelines emphasize setting up the environment, system, and tools specifically for performance test execution.
NEW QUESTION # 17
Which ONE of the following options is NOT an advantage of aggregating results from performance testing?
SELECT ONE OPTION
- A. Different stakeholders can see the speed at which a specific business process Is performed end-to-end.
- B. Performance metrics can be reported in an understandable way.
- C. Business and project stakeholders can see the overall status of system performance.
- D. Performance trends can be identified
Answer: C
Explanation:
Aggregating results from performance testing allows for the identification of performance trends, reporting of metrics in an understandable way, and providing stakeholders with insights into the speed of specific business processes. However, it does not necessarily provide an overall status of system performance. Instead, it focuses on detailed metrics and trends. ISTQB guidelines highlight the importance of presenting performance metrics clearly but recognize that aggregated data does not equate to a comprehensive status overview of the entire system's performance.
NEW QUESTION # 18
Choose the VALID description of the ramp-up concept.
SELECT ONE OPTION
- A. Stage of finishing the test.
- B. Stage of exit from a stationary state by increasing the number of concurrent users.
- C. Stage of reaching the stationary state.
- D. Technique in which the load on the system is increased to a certain value in the shortest possible time.
Answer: B
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
NEW QUESTION # 19
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: III, IV.
- B. True statements: II, IV.
- C. True statements: I, IV.
- D. True statements: 111, V.
Answer: A
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
NEW QUESTION # 20
(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. 11,700
- B. 8,500
- C. 23,400
- D. 9,000
Answer: A
Explanation:
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.
NEW QUESTION # 21
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. During the requirements activities and again before running the performance test.
- C. After design but before coding.
- D. Repeatedly throughout the development phases (including requirements activities) and the performance test itself.
Answer: D
Explanation:
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
NEW QUESTION # 22
ich ONE of the following options is a specific performance risk in mobile applications?
ONE OPTION
- A. Network congestion.
- B. Inefficient Implementation of algorithms.
- C. Limited resources.
- D. Slow data flow from sensors.
Answer: C
Explanation:
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.
NEW QUESTION # 23
(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 only once to check in per hour?
SELECT ONE OPTION
- A. 1,218.75 departing passengers / hour.
- B. 625.00 departing passengers / hour.
- C. 187.50 departing passengers / hour
- D. 812.50 departing passengers / hour.
Answer: B
Explanation:
To calculate the number of departing passengers accessing the front-end only once to check in per hour, we follow these steps:
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. Passengers Accessing Only Once for Check-In:
o 30% of departing passengers reconnect for a boarding pass, which means 70% access only once.
o Passengers accessing only once: 70% of 937.5 passengers/hour = 0.70 * 937.5 = 656.25 passengers/hour.
Given the available options, the closest correct value is C. 625.00 departing passengers / hour.
NEW QUESTION # 24
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 using crowds.
- B. Load generation using captured communication protocols.
- C. Load generation via the user interface.
- D. Load generation via the Application Programming Interface (API).
Answer: A
Explanation:
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
NEW QUESTION # 25
Base Scenario 2 : This Base Scenario 2 is used for 8 questions throughout this exam. When you refer to Base Scenario 2, you are referring to this description and only this description, without any modification.
Natalie works for a company that develops an online check-in management software for a major international airline.
Online check-in is available for passenger check-in from 24 to 1 hour before boarding time.
Once the registration is confirmed by the customer and the system, the information must be available to the rest of the types of users (flight managers, among others) in a maximum time of 3 seconds (it is expected that this temporal constraint is met in 90% of the transactions and that 90% of the transactions are completed at 100%).
At the beginning of the check-in window, there are peaks of 100 users per minute, for one minute.
Question
Which of the following options is a performance-related business objective that could be suitable for this project?
SELECT ONE OPTION
- A. The system must be able to support 200 concurrent users with a response time of one second for the issuance of the boarding pass, considering that the fleet is likely to have a very high percentage of medium size aircraft.
- B. The system must be capable of supporting peak concurrent users in excess of 6,000 users per hour for one minute, accessing check-in without performance degradation, considering that peaks must not exceed a value that exceeds the processing capacity of the system.
- C. The system must have a completion time of up to three seconds for 2,000 concurrent users for updating passenger check-in data
- D. The system must be able to support peak attendance of 1,000 users, considering that there cannot be more than two flights with overlapping schedules.
Answer: B
Explanation:
Given the scenario of online check-in with peak user activity, the most suitable performance-related business objective would be to ensure that the system can handle a high number of concurrent users within a short period without performance degradation. Option A directly addresses the requirement to support peak loads while maintaining system performance, which aligns with the specified peak of 100 users per minute.
Reference:
* ISTQB Performance Testing Syllabus
* ISTQB Glossary
NEW QUESTION # 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 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 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.
- B. 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.
- C. 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.
- D. 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.
Answer: C
Explanation:
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.
NEW QUESTION # 27
......
ISQI CTFL-PT_D exam covers a range of topics related to performance testing, including performance testing basics, performance measurement techniques, performance testing documentation, performance testing tools, and performance testing process. CTFL-PT_D exam assesses the candidate's knowledge and skills in designing and executing performance tests, analyzing test results, and identifying performance issues and bottlenecks. CTFL-PT_D exam also covers the best practices for performance testing, including performance monitoring, test automation, and performance tuning.
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