Preparing Practice Exam…
Please wait a moment while the system generates the exam questions, answers, and study session.
Please wait a moment while the system generates the exam questions, answers, and study session.
ISTQB Certified Tester: Performance Testing (CT-PT) · ISTQB
Select one answer.
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
- The USE method (Brendan Gregg) evaluates each system resource (CPU, memory, disk, network) along three axes: Utilization (busy percentage), Saturation (queue length / wait), and Errors. It is a fast checklist for resource bottlenecks. RED is its counterpart for request-driven services.