Free CompTIA A+ 220-1102 Practice Question

Degaussing is the most effective method to ensure data cannot be recovered because it uses a powerful magnetic field to scramble the data on magnetic storage devices, making it irrecoverable. 'Standard formatting' only removes the file system references but does not actually erase the data, making it recoverable with special tools. 'Erasing/wiping' is a more reliable method than standard formatting, as it involves overwriting the existing data multiple times, but it may not be as foolproof as degaussing. 'Recycling' is intended for environmental disposal of hardware and does not address data destruction.