Device Connection Interfaces and Peripherals for CompTIA Tech+ (FC0-U71): USB, HDMI, Bluetooth, and NFC Explained
CompTIA Tech+ (FC0-U71) devotes nearly a quarter of the exam to the Infrastructure domain, and a large chunk of that domain comes down to one deceptively simple question: how do devices actually talk to each other and to the people using them? Candidates who can recite CPU specs or RAM types sometimes stumble when asked to pick the right cable for a 4K monitor or explain why a wireless mouse keeps dropping its connection. This guide walks through the wired and wireless connection interfaces Tech+ expects you to know, then covers the peripheral setup skills — printers, scanners, and monitors — that show up just as often on the real exam. Why Connection Interfaces Matter on the Tech+ Exam FC0-U71's Infrastructure objectives explicitly call out "device connection interfaces" alongside computing device types and internal hardware, which we covered in our guide to common computing devices and our breakdown of internal components . The exam is not asking you to become a cab...