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The questions for CTFL-PT_D were last updated on Mar 29, 2025.
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(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
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.
Choose the VALID description of the ramp-up concept.
SELECT ONE OPTION
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.
* ISTQB Performance Testing Syllabus
* ISTQB Glossary
(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
Assuming there is one boarding every 5 minutes, what should be the minimum front-end processing capacity of the system for the "departing passenger* user? It is assumed that there will be 12 peaks or maximums per hour.
SELECT ONE OPTION
To calculate the minimum front-end processing capacity, we need to account for the peak and off-peak transactions:
1. Peak Transactions:
o Assume 12 peak periods per hour.
o During peak times, the transaction rate is 100 transactions/minute.
2. Off-Peak Transactions:
o There are 60 - 12 = 48 minutes of off-peak periods per hour.
o Off-peak transaction rate is 10.42 transactions/minute.
3. Total Transactions Per Hour:
o Peak transactions: 12 * 100 = 1,200 transactions.
o Off-peak transactions: 48 * 10.42 = 500.16 transactions.
o Total transactions per hour: 1,200 + 500.16 = 1,700.16 transactions/hour.
Thus, the correct answer is D. 100 * 12 + (60 - 12) * 10.42 = 1,700.16 transactions/hour.
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
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.
* ISTQB Performance Testing Syllabus
* ISTQB Glossary
Refer to Base Scenario 1: When you refer to Base Scenario 1, 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).
* The project follows an iterative and Incremental development life cycle model.
* Development approach: Agile.
Question
Which of the statement(s) below is (are) TRUE regarding how the performance test is undertaken7
1. The performance test can have a dedicated iteration in a specific way.
2. Performance testing should be performed in a cloud-based performance test environment
3. The performance test may be conducted by a specific team.
4. A performance test cycle must be performed in each iteration by the development team (Agile).
SELECT ONE OPTION
In an Agile, iterative, and incremental development model:
* III: The performance test may be conducted by a specific team. This is true as dedicated performance testing teams often handle complex performance testing tasks.
* IV: A performance test cycle must be performed in each iteration by the development team (Agile). This ensures that performance testing is integrated into each iteration to catch performance issues early.
Statements I and II are not necessarily true:
* I: While possible, it is not always the case that there will be a dedicated iteration for performance testing.
* II: Performance testing in a cloud-based environment is beneficial but not mandatory.
* ISTQB Performance Testing Syllabus
* ISTQB Agile Tester Extension Syllabus
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