TEMPEST is a hardware for which of the following purposes?

A. Eavedropping

B. Social engineering

C. Virus scanning

D. Firewalling

E. None of the choices.

Explanation:

Any data that is transmitted over a network is at some risk of being eavesdropped, or even modified by a malicious person. Even machines that operate as a closed system can be eavesdropped upon via monitoring the faint electromagnetic transmissions generated by the hardware such as TEMPEST.