CompTIA Server+ (SK0-005) — Question 148

Which of the following encryption methodologies would MOST likely be used to ensure encrypted data cannot be retrieved if a device is stolen?

Answer options

• A. End-to-end encryption
• B. Encryption in transit
• C. Encryption at rest
• D. Public key encryption

Correct answer: C

Explanation

Encryption at rest secures data stored on a device, making it unreadable without the appropriate keys, which protects it if the device is stolen. End-to-end encryption focuses on securing data during transmission, while encryption in transit protects data moving between locations. Public key encryption is a method of encrypting data but does not specifically address the security of data at rest.