This document is a comprehensive guide for preparing for the Certified Information Systems Auditor (CISA) exam, covering five key domains: auditing processes, IT governance, information systems development, operational resilience, and protection of information assets. Each domain includes practice questions and detailed explanations to help candidates gain insights and improve their understanding of essential IT auditing concepts. The guide aims to support professionals in advancing their careers in IT auditing by effectively preparing for the CISA certification.