ISTQB AI Testing Certification 2026: 3 Full-Length Test

Are you preparing for the ISTQB Certified Tester AI Testing (CT-AI) certification? This practice test course gives you everything you need to walk into the exam with confidence.This course contains 3 full-length practice tests with 120 unique questions, carefully designed to mirror the structure, difficulty, and domain distribution of the actual CT-AI exam. Every test covers all 11 chapters of the official CT-AI syllabus, with question weightage proportional to the real exam.What you will practice:Machine Learning Fundamentals — supervised, unsupervised, and reinforcement learning; overfitting, underfitting, and the ML workflowData Quality & Bias — data labelling, concept drift, class imbalance, mislabelled data, and algorithmic biasAI Test Techniques — metamorphic testing, adversarial testing, A/B testing, back-to-back testing, and pairwise testingAI Quality Characteristics — explainability, transparency, autonomy, safety, fairness, and robustnessML Performance Metrics — precision, recall, F1-score, accuracy, specificity, and confusion matrix interpretationEach question includes detailed explanations for every answer option, so you understand not just what the correct answer is, but exactly why the other options are wrong.Who is this course for? Software testers, QA engineers, test managers, and AI practitioners pursuing the ISTQB CT-AI certification.No duplicate questions across the three tests — 120 completely unique exam-style questions in total.