Domain 3: Hardware

CompTIA A+ Core 1 (220-1101) · this domain is approximately 25.0% of the exam · 0 practice questions.

The Hardware domain on the CompTIA A+ Core 1 exam is the most heavily weighted section and covers the identification, installation, configuration, and troubleshooting of physical components including CPUs, RAM, storage devices, motherboards, power supplies, and expansion cards. Candidates are expected to recognize component form factors, understand compatibility requirements, and apply proper procedures for safe component handling. Mastery of hardware is the core skill differentiator for entry-level technicians who perform hands-on builds, upgrades, and repairs.

Practice questions from this domain

The full CompTIA A+ Core 1 (220-1101) bank includes 505 questions across every domain, each with a verified answer and a written explanation.