Which of the following encryption types protects data at rest?
A.
File-level
B.
VPN
C.
HTTPS
D.
Plaintext
The Answer Is:
A
This question includes an explanation.
Explanation:
Data at rest refers to information stored on a device or disk, such as a hard drive. The encryption that protects it is typically file-level encryption (or full-disk encryption).
“File-level encryption applies encryption to individual files or directories on storage media and is used to protect data at rest.” — CompTIA ITF+ Study Guide
VPN and HTTPS protect data in transit.
Plaintext means data is unencrypted, and therefore is not protective.
Therefore, A is the correct answer.
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