Nine domains · Two exams

In-depth A+ study guides

Work through a domain from principles to real-world diagnosis, then test yourself.

Core 1 · 13%

Laptop displays, USB-C docks, wireless connectivity, and mobile support

Core 1 · 23%

Addressing, routing, Wi-Fi, ports, and command-line diagnosis

Core 1 · 25%

Motherboards, RAM, storage, printers, power, and component selection

Core 1 · 11%

Hypervisors, containers, SaaS/IaaS/PaaS, and cloud resource behavior

Core 1 · 28%

A repeatable diagnostic workflow under real help-desk constraints

Core 2 · 28%

Windows tools, permissions, Linux basics, and recovery strategy

Core 2 · 28%

Identity, malware response, wireless defense, and risk reduction

Core 2 · 23%

Application failures, browser behavior, malware symptoms, and OS instability

Core 2 · 21%

Change management, documentation, safety, privacy, and customer communication