Comprehensive study guides for every CompTIA A+ exam domain — hardware, networking, operating systems, security, cloud computing, and troubleshooting. Each guide covers what the Core 1 (220-1201) and Core 2 (220-1202) exams actually test, with practice questions and expert study tips to help you pass on your first attempt.
The CompTIA A+ exam tests troubleshooting methodology across two major domains. Master the official 6-step process — from identifying the problem to documenting your findings — and you’ll be prepared for both scenario questions and real IT work.
Master the CompTIA A+ 6-step troubleshooting methodology with exam-specific breakdowns, practice scenarios, and study tips for both the 220-1201 and 220-1202 exams.
DDR4 vs DDR5 RAM is tested directly in the CompTIA A+ Core 1 Hardware domain (25% of 220-1201). Learn the key differences, compatibility rules, and pin counts you need to know to pass — with exam-style practice questions included.
DDR4 vs DDR5 — what does the CompTIA A+ exam actually test? This guide breaks down speeds, voltages, physical compatibility, and key study tips for the Hardware domain of the Core 1 (220-1201) exam.
Master RAID 0, 1, 5, and 10 for the CompTIA A+ Core 1 exam. This guide breaks down how each RAID level works, when to use it, and exactly what the 220-1201 exam expects you to know.
BIOS and UEFI are core firmware concepts tested on the CompTIA A+ Core 1 exam (220-1201). Learn the key differences, real-world implications, and exactly what the exam expects you to know — plus practice questions to test yourself.
The CompTIA A+ 220-1202 Security domain counts for 26% of your exam score, and malware knowledge is a core part of it. This guide breaks down every malware type you need to know — viruses, ransomware, trojans, spyware, rootkits, and more — with real exam context and study tips to help you pass.
Wireless networking standards are a guaranteed topic on the CompTIA A+ Core 1 exam. This guide breaks down Wi-Fi 5, Wi-Fi 6, and Wi-Fi 7 — including speeds, frequencies, and exam-ready details you need to know.
DHCP and DNS are two of the most tested networking concepts on the CompTIA A+ exam. Learn exactly what each protocol does, how they work together, and how to troubleshoot them like a pro.
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