BCCITB study guide
BCCITB · Work through your exam, one topic at a time.
BCCITB is a foundational IT certification exam aimed at people entering technical support, helpdesk, or junior infrastructure roles, and at career changers who need a single credential that proves broad baseline competence. Rather than drilling into one vendor's products, the exam is organised around seven domains that mirror how entry-level IT work actually arrives: hardware and IT fundamentals, operating systems and software, networking and internet technologies, security and data protection, troubleshooting and support, cloud and emerging technologies, and IT service management and professional practice. The BCCITB study guide has 7 sections and about 2,255 words.
01IT Fundamentals and Computer Hardware
Domain 1 tests whether you can map a symptom to the hardware component responsible and reason about capacity, speed and volatility rather than recite shopping specifications. CPU - cores run threads concurrently; clock speed is cycles per second, but cache size and instructions-per-clock often matter more.
326 words, about 2 min02Operating Systems and Software
This domain covers what an operating system actually does - process, memory, file, device and user management - plus how software is installed, licensed and kept current. Kernel vs user mode - a fault in user mode kills one process; a kernel fault can crash the whole system.
334 words, about 2 min03Networking and Internet Technologies
This domain checks whether you can explain how data moves between hosts, and diagnose a break in that path layer by layer rather than guessing. Layers - OSI's seven layers teach the model; TCP/IP's four layers describe practice.
319 words, about 2 min04Security and Data Protection
This domain tests the principles behind protecting confidentiality, integrity and availability, and the judgement to apply them when a real person is on the phone asking for something urgent. CIA triad - confidentiality, integrity, availability.
321 words, about 2 min05Troubleshooting and Support
This domain rewards a repeatable method and clean evidence handling over lucky guesses. The exam likes scenarios where the obvious fix is not the correct first step.
318 words, about 2 min06Cloud and Emerging Technologies
This domain covers cloud service and deployment models, the shared responsibility split, and how virtualisation, containers and newer platforms change who manages what. NIST essentials - on-demand self-service, broad network access, resource pooling, rapid elasticity, measured service.
317 words, about 2 min07IT Service Management and Professional Practice
This domain tests how work is recorded, prioritised and communicated, and the professional conduct expected when you hold access other people do not. Incident vs problem - an incident is an unplanned interruption; restore service fast.
320 words, about 2 min