Pass the ISTQB Software Testing & Quality CT-PT Questions and answers with CertsForce

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.

Load testingassesses a system’s ability to handlegradually increasing levels of loadand ensures that it meets performance expectationsunder normal and peak conditions.

Option B (Elevation testing)is incorrect because this term does not exist in ISTQB performance testing terminology.

Option C (Spike testing)focuses onsuddenincreases in load rather thangradualscaling.

Option D (Endurance testing)examines how a system performsover an extended period, rather thangradual load increases.

Aload generatoris responsible forsimulating virtual usersand applyingworkloads to a systemas defined by an operational profile. This allows testers to analyze how the system behaves under different load conditions.

Option A (Background load)is incorrect becauseload generators create simulated user interactions, not just background noise.

Option C (Record and analyze behavior)is the role ofmonitoring tools, not a load generator.

Option D (Support root cause analysis)is incorrect becauseroot cause analysis is done after the load test, using monitoring tools.

Wait timeis the period a transaction spendswaiting for resources, database responses, or external servicesbefore completing. It is critical for understandingreal-world transaction durations.

Option A (Think time)refers touser delays, not system delays.

Option C (Action time)focuses onexecution time only.

Option D (User time)is not a standard performance metric.

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.

When system resources (e.g.,CPU, RAM, I/O) are oversaturated, the system becomes overloaded, leading toincreased response timesandpoor application performance.

Option A (Gradual improvement of response time)is incorrect becauseperformance degrades under heavy load.

Option C (Error logging decreases)is unlikely; in most cases, errorsincreasewhen systems reach their limits.

Option D (Database size decreases)is unrelated to performance saturation.

One of thebest practices in performance test scriptingis tovalidate that correct data is recorded in the databaseafter execution. This ensures thatperformance issues do not impact data integrity.

Option A (Increasing the number of scripts)may providemore coverage but does not verify accuracy.

Option C (Adding transaction timers)is useful for performance monitoring but does not ensurecorrect data entry.

Option D (Holding the development team accountable)is amanagement responsibility, not a scripting best practice.

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.

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.

Stress testingis designed to evaluate how a system behavesunder extreme conditions, often exceeding its design limitations. The goal is to identify bottlenecks, memory leaks, and failures that occurbeyond normal operating conditions.

Option A is incorrectbecause it refers toresilience testing, which focuses on recovery rather than stress beyond limits.

Option B is incorrectas it describesload testing, which measures performance under expected loads.

Option C is incorrectsincedetermining the maximum transactionsis a feature ofcapacity testing, not stress testing.