Proxies work by transferring a copy of each accepted data packet from one network to another, thereby
masking the:

A.
data’s payload.

B.
data’s details.

C.
data’s owner.

D.
data’s origin.

Explanation:
Proxy servers act as an intermediary between the clients that want access to certain services and the servers
that provide those services. The proxy server sends an independent request to the destination on behalf of the
user, thereby masking the origin of the data.
Incorrect Answers:
A: The proxy server transfer they payload data to the destination.
B: The proxy server transfer they payload data (the details of the data) to the destination.
C: The origin of the data, not the owner of the data, is masked by the proxy server.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 653