Which of the following is a hardware-based security technology included in a computer?

A.
Symmetric key

B.
Asymmetric key

C.
Whole disk encryption

D.
Trusted platform module

Explanation:
Trusted Platform Module (TPM) is a hardware-based encryption solution that is embedded in the
system’s motherboard and is enabled or disable in BIOS. It helps with hash key generation and stores
cryptographic keys, passwords, or certificates.
Incorrect Answers:A, B: Symmetrical and Asymmetrical keys are used in hardware- or software-based cryptography.
C: Whole disk and device encryption encrypts the data on the device. This feature ensures that the data
on the device cannot be accessed in a useable form should the device be stolen. This encryption can be
provided by a software or a hardware solution.

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis,
2014, pp. 418-419
Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 236, 237