CompTIA A+ Core 1 220-1201 Lessons

Every lesson is free to read, with three practice questions each. Work through them in order, or jump to the objective you need.

Practise with the exam simulator

  1. Inside a laptop: what comes out, what does not, and the order it comes out inObjective 1.1Audio
  2. A bench you can actually build, and what it costs to prove each thingAudio
  3. Displays, cameras and the antennas hidden in the lidObjective 1.1Audio
  4. USB, Bluetooth, NFC and docking: connecting a mobile device to everything elseObjective 1.2Audio
  5. Mobile connectivity: Wi-Fi, cellular data, tethering and hotspotsObjective 1.3Audio
  6. Accounts, mail and synchronisation, and what 'synced' actually meansObjective 1.3Audio
  7. Mobile fault finding: separating hardware, software and account problemsObjective 1.4Audio
  8. The ports and protocols you have to know cold, and how to learn them onceObjective 2.1Audio
  9. TCP, UDP, and what the transport layer decides for youObjective 2.1Audio
  10. Wireless standards, frequencies and the channel plan nobody madeObjective 2.1Audio
  11. DNS, DHCP and the services a network cannot run withoutObjective 2.1Audio
  12. IPv4 addressing, subnets, and why the mask matters more than the addressObjective 2.2Audio
  13. IPv6, APIPA, and choosing between static and dynamic addressingObjective 2.2Audio
  14. Setting up a small office network: the router, the wireless and the defaultsObjective 2.2Audio
  15. VPNs and remote access for the small officeObjective 2.2Audio
  16. Copper, fibre, and terminating a cable that actually worksObjective 2.3Audio
  17. Network tools: what a tester, a toner and an analyser each actually proveObjective 2.3Audio
  18. CPUs: sockets, cores, and the thermal limit that decides real speedObjective 3.1Audio
  19. RAM: types, channels, and what actually failsObjective 3.1Audio
  20. Storage: spinning disks, solid state, and the interfaces they arrive onObjective 3.1Audio
  21. RAID levels, and the array that is not a backupObjective 3.1Audio
  22. Display connectors: HDMI, DisplayPort, and the adapter that will not workObjective 3.2Audio
  23. USB, Thunderbolt, and cables that charge but do not carry dataObjective 3.2Audio
  24. Printer types, and how each one actually puts ink on paperObjective 3.3Audio
  25. Installing, sharing and securing a printerObjective 3.3Audio
  26. Scanners, input devices and the peripherals that arrive with themObjective 3.3Audio
  27. Motherboards: form factors, headers, and the firmware underneathObjective 3.4Audio
  28. Power supplies, wattage, connectors and keeping the heat outObjective 3.4Audio
  29. Hypervisors: type 1, type 2, and what each one is forObjective 4.1Audio
  30. Building a virtual machine that does not fight youObjective 4.1Audio
  31. Virtual desktops, thin clients, and what the endpoint still needsObjective 4.1Audio
  32. Cloud service models, and who patches whatObjective 4.2Audio
  33. Cloud characteristics and deployment modelsObjective 4.2Audio
  34. The troubleshooting method, and why the order of the steps mattersObjective 5.1Audio
  35. A machine that will not start: no power, no POST, no displayObjective 5.1Audio
  36. Intermittent faults: heat, power, and the ones that come backObjective 5.1Audio
  37. Storage failures: reading the warning signs and getting the files offObjective 5.1Audio
  38. Display problems, from the panel to the cableObjective 5.1Audio
  39. Printer faults you can diagnose without a service manualObjective 5.1Audio
  40. A network connection that is not workingObjective 5.1Audio
  41. Wireless problems: signal, interference and roamingObjective 5.1Audio
  42. The multimeter, and what a reading actually tells youObjective 5.2Audio
  43. Testing a power supply without guessingObjective 5.2Audio
  44. Cable testers, toners and loopback plugsObjective 5.2Audio
  45. Building a test kit, and knowing what each tool provesObjective 5.2Audio