Free CompTIA Study Tools

Search 200+ network ports commonly tested on CompTIA exams. Filter by certification, protocol, and service name.

Look up 350+ acronyms from CompTIA exam objectives. Instant search with alphabet filter and cert-specific views.

Calculate subnets, CIDR notation, wildcard masks, and usable hosts. Includes binary visualization for Network+ prep.

Model the total cost of any CompTIA certification in 30 seconds — vouchers, retakes, student discounts, and training.

Compare real Security+, Network+, and A+ salaries across 30 US cities — and see which states have no income tax.

Three interactive performance-based questions in real SY0-701 formats — log analysis, attack matching, and incident-response ordering.