ISTQB CT-PT ISTQB Certified Tester - Performance Testing Exam Practice Test

One of the biggest challenges of cloud-based performance testing is the lack of control over test execution timing due to shared cloud resources. Cloud environments dynamically allocate computing power, meaning that test execution may vary due to background processes, VM migrations, or auto-scaling events.

Option B (Inability to generate load) is incorrect because cloud platforms can scale upresources to generate high loads.

Option C (Lack of behavior simulation tools) is incorrect because cloud providers offer robust testing tools.

Option D (Test execution speed being too high) is not a valid performance testing challenge.

To ensure anaccurate operational profile, it is crucial tovalidate and adjust it with key stakeholders before executing tests. This step ensures that the workloadrealistically represents actual user behavior.

Option A (Executing the test first and adjusting later)is incorrect becauseadjustments should be made before executionto avoid misleading results.

Option C (Aggregating profiles into a single generic profile)removesimportant distinctions between different user types, reducing test accuracy.

Option D (Creating separate profiles and using equal proportions)does not match the actualpower purchaserbehavior, which requires arealistic representation of their higher-volume transactions.

Nested transactionsallow performance tests to capture bothindividualandaggregatedelements bygrouping multiple related transactionsand measuring their cumulative impact.

Option A (Aggregated metrics)provides summaries but lacks insight into individual elements.

Option B (Process optimization tracking)focuses onbusiness process improvement, not test metrics.

Option C (Measuring underlying transactions)focuses only onindividualtransactions.

Forsafety-critical software, performance goalsmust be identified as early as the requirements phase. This ensures thatperformance constraints are well understood and accounted for throughout development.

Option A (After test readiness but before system testing)istoo late, as requirements should be definedbefore coding begins.

Option C (During the concept stage)istoo early, as details may not be concrete.

Option D (During software design)is useful butshould be preceded by a proper definition during the requirements phase.

Acloud-based environmentis themost cost-effectivesolution for performance testing. It offersscalability, pay-per-use models, and flexibility, allowing testers to simulate large workloadswithout expensive infrastructure investments.

Option A (Isolated lab environment)is costly due tohardware maintenance and infrastructure costs.

Option C (Mainframe environment)isexpensive and impracticalfor performance testing.

Option D (No environment)is not a viable option.

Performance monitoring toolscollectreal-time and historicalperformance data, particularly fromserver logs, application metrics, and infrastructure monitoring. This allows testers to analyze performance trends efficiently.

Option A is incorrectbecause monitoring toolsdo not preventmalicious behavior but may detect it.

Option C is incorrectsinceidentifying multi-threading issuesis typically done throughprofiling toolsrather than performance monitors.

Option D is incorrectasDoS attack detectionfalls undersecurity testing.

Aramp-up periodin a performance testgradually increases loadover time, and aramp-down perioddoes the opposite. This preventssudden surges in system load, making test resultsmore realistic.

Option A (Ensuring transactions complete in a time window)is incorrect because ramp-up/down periods do not control transaction timing.

Option C (Providing a buffer for slow transactions)is incorrect because ramp-up/down is about load balancing, not transaction timing.

Option D (Keeping all virtual users active throughout the test)is incorrect because ramp-down periods reduce users gradually.

ODBC (Open Database Connectivity)is astandard database protocolthat enables applications toconnect to and interact with databasesregardless of vendor specifications.

Option B (JUNIT)is aunit testing framework, not a database protocol.

Option C (SMP - Symmetric Multiprocessing)relates toCPU architecture, not databases.

Option D (MMS - Multimedia Messaging Service)is related tomobile messaging, not database communication.

Astatic performance testis anon-execution-based reviewthat analyzes system architecture, network configurations, and other elements thataffect system performance before execution.

Option A (Usability test)is not a static performance test but rather a functional or UX evaluation.

Option B (Evaluation of testers' skills)is unrelated to performance testing.

Option D (Formal signature approval)is an administrative task and not a static test.

Performance monitoring mustbegin simultaneously with test executiontocapture system behavior in real-time. This ensures thatbottlenecks and performance issues are identified immediately.

Option A (After testing is concluded)is incorrect becausehistorical monitoring does not help in real-time analysis.

Option B (Before execution)is incorrect because monitoring needsactive system loadto measure performance.

Option C (Immediately after execution)is incorrect because itmisses runtime metrics.

Mobile and browser-based applicationsoften rely on APIsfordata retrieval and processing.Unexpected API loadcan causelatency issues, bottlenecks, and system crashes.

Option A (Hard disk speed)is not a major issue incloud-based or mobile systems.

Option B (Misconfigured host machine)affectson-premise systems, not mobile/browser-based applications.

Option D (Internet connectivity issues)is auser-side issue, not a system performance risk.

Resource allocation happens during the test planning phase, wherehardware, tools, and personnelare assigned to the project. This ensures that performance tests areadequately supported.

Option B (Test execution)is when resources are actually used, not allocated.

Option C (Test evaluation)happensafter executionto analyze results.

Option D (Test completion)focuses on documentation and reporting.