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Cybersecurity · 3 courses

Cybersecurity Expert

Go from how computers work to defending networks, in three courses: IT Foundations, Networking and Security Operations. Short lessons, hands-on practice, and everything you need for CompTIA A+, Network+ and Security+.

By the end you’ll be able to: Build and defend your own home lab, and be ready for the A+, Network+ and Security+ exams

Time to learn, all three courses

≈ 135 h 4 min

That’s about 21 flights from Lagos to London.

470 lessons, none longer than 10 minutes. Take the courses in order, or start where your experience fits.

Start with IT Foundations

Start course one

The courses

  1. IT Foundations

    Prepares you for CompTIA A+ (220-1201 and 220-1202)

    How computers, phones, operating systems and small networks work, how to fix them, and how to keep them secure.

    10 modules · 208 lessons · ≈ 57 h 27 min

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  2. Networking

    Prepares you for CompTIA Network+ (N10-009)

    How networks are designed, built, run, secured and fixed, from the OSI model and subnetting to routing, wireless and the cloud.

    6 modules · 114 lessons · ≈ 35 h 3 min

    View course

  3. Security Operations

    Prepares you for CompTIA Security+ (SY0-701)

    Threats, architecture, operations and risk: how organizations defend themselves and how security analysts work day to day.

    7 modules · 148 lessons · ≈ 42 h 34 min

    View course

Lessons are free videos by Professor Messer on YouTube, put in order with hands-on tasks and practice questions. Skillreps isn’t affiliated with CompTIA; exams are booked and paid for through CompTIA.