What is typically the result of oversaturation of system resources during performance testing?
Answer(s): B
When system resources are oversaturated (e.g., CPU, RAM, or network bandwidth), response times will degrade because the system struggles to process requests efficiently. This is a key performance bottleneck indicator.Option A is incorrect because response times do not improve under heavy load; they typically worsen.Option C is incorrect because error logging may actually increase rather than decrease under stress.Option D is incorrect because database size is independent of system saturation unless records are actively purged.
ISTQB CT-PT Syllabus, Section 2.5: Identifying Bottlenecks.
What should be captured for batch processing performance metrics?
Answer(s): A
For batch processing performance metrics, the two most important factors are:Throughput Measures the number of transactions processed over time.Wait times Evaluates delays in processing batches.Option B (Number of records deleted) is irrelevant unless batch processing specifically involves deletions.Option C (Network latency percentage) applies to real-time transaction processing, not batch jobs.Option D (Concurrent virtual users) applies more to load testing rather than batch performance.
ISTQB CT-PT Syllabus, Section 2.2.4: Batch Processing Performance Testing.
What is an advantage of aggregating the results of performance testing?
Answer(s): C
Aggregating test results helps stakeholders understand performance trends by combining data points from multiple test runs. This makes it easier to draw conclusions about system behavior.Option A is incorrect because aggregation may reduce detailed visibility, not increase it.Option B is incorrect because aggregation does not expedite testing itself.Option D is incorrect because aggregated results do not indicate test completion.
ISTQB CT-PT Syllabus, Section 2.6: Performance Test Result Analysis.
Which of the following is an advantage of using performance monitoring tools?
Performance monitoring tools collect real-time and historical performance data, particularly from server logs, application metrics, and infrastructure monitoring. This allows testers to analyze performance trends efficiently.Option A is incorrect because monitoring tools do not prevent malicious behavior but may detect it.Option C is incorrect since identifying multi-threading issues is typically done through profiling tools rather than performance monitors.Option D is incorrect as DoS attack detection falls under security testing.
ISTQB CT-PT Syllabus, Section 3.2: Performance Monitoring Tools.
Which of the following is usually identified by a performance test?
Performance tests primarily identify resource bottlenecks such as CPU saturation, memory leaks, network congestion, and database slowdowns.Option B (Suitability issues) is a functional requirement concern, not a performance issue.Option C (Learnability concerns) relates to usability testing, not performance.Option D (Accessibility requirements) falls under compliance and usability testing, not performance testing.
ISTQB CT-PT Syllabus, Section 2.5: Identifying Bottlenecks and Performance Issues.
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