[2024] CTFL-PT_D Actual Exam Dumps, CTFL-PT_D Practice Test
PracticeDump CTFL-PT_D dumps & Performance Testing sure practice dumps
NEW QUESTION # 17
(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. 625.00 departing passengers / hour.
- B. 1,218.75 departing passengers / hour.
- C. 187.50 departing passengers / hour
- D. 812.50 departing passengers / hour.
Answer: A
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 # 18
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 - 2A - 3D - 4B - 5E
- C. 1C-2D-3E-4B-5A
- D. 1B-2E-3A-4D-5C
Answer: D
Explanation:
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
NEW QUESTION # 19
(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, no improvement is required. The transactions associated with the check-in are below the acceptance value, no improvement is required.
- D. 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.
Answer: D
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 # 20
What is the benefit of transaction nesting for performance testing?
SELECT ONE OPTION
- A. The possibility to measure the evolution of response time with the load.
- 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 ability to measure individual and aggregate activities.
Answer: D
Explanation:
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.
NEW QUESTION # 21
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. Distributed systems.
- C. Multi Tier systems.
- D. Client-server 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 # 22
Choose the VALID description of the ramp-up concept.
SELECT ONE OPTION
- A. Stage of exit from a stationary state by increasing the number of concurrent users.
- B. Stage of reaching the stationary state.
- C. Technique in which the load on the system is increased to a certain value in the shortest possible time.
- D. Stage of finishing the test.
Answer: A
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 # 23
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. After design but before coding.
- D. During the requirements activities and again before running the performance test.
Answer: B
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 # 24
In which activity of the testing process is the scope of performance testing established?
SELECT ONE OPTION
- A. Test monitoring and control.
- B. Test design.
- C. Test analysis.
- D. Test planning.
Answer: D
Explanation:
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.
NEW QUESTION # 25
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 via the Application Programming Interface (API).
- C. Load generation via the user interface.
- D. Load generation using captured communication protocols.
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 # 26
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: I. V, VI.
- B. The following are performance test activities: III, IV.
- C. The following are performance test activities: I, III. IV.
- D. The following are performance test activities: I, III, VI.
Answer: C
Explanation:
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.
NEW QUESTION # 27
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. 1C-2D-3B-4A.
- B. 1C-2D-3A-4B.
- C. 1D-2C-3A-4B.
- D. 1B-2D-3A-4C.
Answer: B
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 # 28
(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 a test environment equivalent to the production environment. Passengers shall be removed from the production environment, disassociated and imported Into the test environment.
- C. 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.
- 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.
Answer: C
Explanation:
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.
NEW QUESTION # 29
Identify the correspondences between performance measures and metrics (1 -6) and the different environments (A C) in which performance evaluation is needed.
1. Alerts and warnings.
2. Concurrency of usage.
3. Operational processes.
4. Resource utilization.
5. Response time.
6. Throughput of data, transactions, and other units of work performed.
1. Operating environment.
2. Business environment.
3. Technical environment.
SELECT ONE OPTION
- A. 1B - 2B - 3A - 4B - 5C - 6A.
- B. 1A-2C-3C-4A-5C-6B.
- C. 1A-2B-3C-4C-5A-6C.
- D. 1A-2B-3A-4C-5C-6B.
Answer: D
Explanation:
* 1A: Alerts and warnings are typically part of the operating environment to monitor and respond to issues in real-time.
* 2B: Concurrency of usage is critical in the business environment where multiple users interact with the system simultaneously.
* 3A: Operational processes are key aspects of the operating environment, ensuring the smooth running of day-to-day activities.
* 4C: Resource utilization is a technical concern, focusing on how effectively system resources are used.
* 5C: Response time is a technical metric that directly affects user experience and system efficiency.
* 6B: Throughput of data, transactions, and other units of work performed is relevant to the business environment where the volume of operations impacts overall performance.
This categorization aligns with the ISTQB framework for performance evaluation across different environments, ensuring comprehensive coverage of performance metrics.
NEW QUESTION # 30
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. There is no need to set a baseline for the peak attendance, it is a known value.
- C. Establish the acceptance criteria for response times.
- D. Create a baseline corresponding to the total number of users registered in the production database.
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 # 31
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, V are the most important parts of the test environment.
- B. II. IV are the most important parts of the test environment.
- C. III, V are the most important parts of the test environment.
- D. II. III. V are the most important parts of the test environment.
Answer: D
Explanation:
* 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.
NEW QUESTION # 32
In which activity of the testing process is the scope of performance testing established?
SELECT ONE OPTION
- A. Test monitoring and control.
- B. Test design.
- C. Test analysis.
- D. Test planning.
Answer: D
Explanation:
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.
NEW QUESTION # 33
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; decrease the balance of account K by X Monetary Units. If the reduction in account K has been correctly applied, then apply changes.
- B. 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.
- C. 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
- 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.
Answer: C
Explanation:
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.
NEW QUESTION # 34
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