ISTQB Foundation (CTFL v4.0) Mock Exam #4

The fourth full-length CTFL v4.0 practice exam: 40 questions, 60 minutes, 65% to pass, weighted across all six chapters. Applied block: a thermostat state machine (Off / Idle / Heating), branch coverage on a control-flow graph with a loop body, and a 0-switch coverage count on an ATM session where the wrong-PIN self-transition is counted only once. Theory focus: confirmation bias and the whole-team approach to quality, test monitoring vs test control and pass-rate calculation, why decision tables get simplified, and static analysis and tool selection. Every answer option carries a written rationale.