FC0-U71 is the current exam code for CompTIA Tech+ (version 6). "FC0" denotes the series and "U71" the revision. It validates entry-level technology-fundamentals knowledge for people new to IT, ahead of more job-focused credentials.
What it means
Tech+ is CompTIA's beginner technology-literacy credential, and FC0-U71 is its current exam. CompTIA's official page presents Tech+ as a foundation-level credential covering basic IT concepts, infrastructure, applications and software, software development concepts, data, and security fundamentals — aimed at absolute beginners.