ISTQB CT-PT Certification Exam Sample Questions

CT-PT Dumps PDF, Performance Testing Dumps, download CT - Performance Testing free Dumps, ISTQB Performance Testing exam questions, free online CT - Performance Testing exam questionsYou have to pass the CT-PT exam to receive the certification from ISTQB. To increase the effectiveness of your study and make you familiar with the actual exam pattern, we have prepared this ISTQB Performance Testing sample questions. Our Sample ISTQB Certified Tester Performance Testing Practice Exam will give you more insight about both the type and the difficulty level of the questions on the ISTQB CT - Performance Testing exam.

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ISTQB Performance Testing Sample Questions:

01. A call-center CRM vendor will populate its performance test database by extracting two million customer records from production. Because the records contain names, phone numbers and home addresses, these fields will be masked before import, as required under GDPR. The masking replaces every surname with one of 50 generated values and every postcode with a single test postcode.
Which statement should the performance test plan record about this approach?
a) Masking keeps the production data characteristics intact, so the plan records no test data risk for masked records
b) Masked production data must not be used, so the tests should run against the unmasked customer records instead
c) Masking removes the requirement to back up and restore the database between test cycles
d) Masking is required but adds risk, since masked data may not share the characteristics of real-world data
 
02. A performance test script for a conference registration site simulates an attendee submitting a registration form. For the "submit registration" transaction, the measured transaction response time is 1.8 seconds, and the script applies a think time of 12 seconds to represent the attendee reviewing the form before pressing Submit.
What is the elapsed time for this transaction?
a) 1.8 seconds
b) 13.8 seconds
c) 12 seconds
d) 10.2 seconds
 
03. During each test cycle, a team runs a load testing tool, two stand-alone monitoring tools and a log analysis tool.
Why is it essential to time-synchronize all of these tools?
a) So that all information from one test execution cycle can be located and analyzed together
b) So that the monitoring tools add less probe effect to the system under test during each test cycle
c) So that the stand-alone monitors start and stop at exactly the same moment as the load generators
d) So that think times are applied consistently
 
04. A municipal transit authority is planning performance tests for its new ticketing app. The draft plan defines response-time targets for buying and validating tickets on riders' phones, agreed in workshops with a rider panel. The platform's operations team, who must complete nightly backups and restart the servers before the first trains run, was not consulted.
Which of the following BEST describes the weakness in this plan?
a) The tests will not be affordable or executable within the timeframe set by the project
b) The tests cannot be repeated with statistically identical results on an unchanged system
c) The tests are not aligned with the expectations of the operations staff
d) The rider panel should not have set the targets
 
05. A streaming-radio mobile app talks to its backend through a sequence of requests that was never documented, and the developers who built it have left the organization. The performance tester must create a script for the play-station operational profile that reproduces the client's behavior as faithfully as possible, and a working copy of the app is available on a test device.
Which approach is MOST appropriate for creating the script?
a) Program the requests from the testers' best reconstruction of the calls, since programmed scripts are easier to maintain than recorded ones
b) Use a crowd of real listeners instead, since a script cannot be built for an interaction that is not documented
c) Derive the script from the load profile
d) Record the client's communication at protocol level, since recording reproduces the real sequence
 
06. A consortium is building a shared public library catalog for a whole region. How many member libraries will join, and therefore how many simultaneous users the catalog must serve, will not be known for at least 18 months. The architecture must be decided now.
Which risk mitigation is BEST?
a) Design for highly variable scalability, such as on-demand cloud resources
b) Postpone the performance risk analysis until the number of simultaneous users can be specified
c) Size the servers for the libraries committed today and run a capacity test shortly before release
d) Buy fixed hardware now for a worst-case user estimate, then run a stress test at that level
 
07. For a load test of a public library catalog, the team enabled detailed method-level tracing agents on every catalog server. Search response times were 30% worse than in an otherwise identical run with tracing disabled, at the same load and with the same data.
Which of the following BEST explains the concern this raises?
a) Endurance degradation: response times worsen over the run as memory leaks build up in the servers
b) Network throughput saturation caused by the load generators
c) A test oracle gap: without defined requirements, nobody can tell whether a 30% slower search is acceptable
d) The probe effect: collecting metrics should impact system performance no more than minimally
 
08. A payroll SaaS provider will run its performance tests on the staging environment. The same environment is used by a user acceptance testing (UAT) team from another department, whose testers work from 09:00 to 17:00 on weekdays. The tester is preparing a briefing for the infrastructure and operations engineers who support staging.
Which point is MOST important to include in this briefing?
a) That tooling, scripting and load generation details are of secondary interest to this audience
b) The balance between the cost of the planned tests and how representative the results will be of production
c) The scheduling of the tests on the shared staging environment, so UAT activity does not distort results
d) The connection between the product risks and what the planned performance tests set out to show
 
09. An architecture review of a regional court's multi-tier case-management system found its tier design sound. A developer then implements the case-history search, which follows chains of linked case references, as a recursive function rather than an iterative loop.
A tester asks whether this choice matters for performance. Which of the following statements is BEST?
a) No; performance risks come from the architecture category, and the review has already covered the multi-tier risks for this system
b) Yes; decisions down to single functions, such as recursion versus iteration, also create performance risks
c) Yes, because recursion leaks memory whenever the language allows direct heap memory management, such as C and C++
d) No; algorithm choices affect functional correctness, so they are checked in functional testing rather than for performance efficiency
 
10. On a smart-meter platform, a real-time aggregation component (A) must supply consolidated readings to a real-time grid-balancing component (B) every 200 milliseconds. From the first minute of every test run, A produces an update only every 350 milliseconds, even when it is the only process running and its memory use stays low. B therefore misses its deadlines and the overall system fails to respond in time.
Which action is MOST appropriate?
a) Evaluate and modify A's code modules through performance profiling
b) Run an endurance test on A to locate the memory leak that slows it over time
c) Add memory to the platform and prioritize A's requests for dynamic memory
d) Stress test B with input rates beyond its specified limits to find its breaking point

Answers:

Question: 01
Answer: d		 Question: 02
Answer: b		 Question: 03
Answer: a		 Question: 04
Answer: c		 Question: 05
Answer: d
Question: 06
Answer: a		 Question: 07
Answer: d		 Question: 08
Answer: c		 Question: 09
Answer: b		 Question: 10
Answer: a

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