Question

you have stored your data on a local hard disk. which method would secure this data from unauthorized access?
duplication of the hard drive
two factor authentication
deletion of sensitive files
data encryption

Explanation:

Duplication of the hard - drive just creates a copy and doesn't prevent unauthorized access. Two - factor authentication is more for user log - in processes to systems rather than directly securing data on a local hard disk. Deletion of sensitive files removes data rather than securing it. Data encryption encodes the data so that only those with the decryption key can access it, effectively securing it from unauthorized access.

Answer:

D. Data encryption