MS-DOS is a command-line operating system.
Therefore, the best answer is Command-line.
A proxy server is a server that intercepts user requests from the internal secure network and then processes that request on behalf of the user.
The proxy server can be a computer or application program<span> that gets the requests from clients and seeks resources from other </span>servers. It is a <span>intermediary point between the end user and the backbone network.</span>
Answer:
a. HIPAA
Explanation:
HIPPA represents the Health Insurance Portability and Accountability Act that of the United States which becomes mandatory for protecting the medical data in any form.
Also in the case of data protection that represent the general regulations, PCI DSS, GDPR etc would be used
So the option a is correct
hence, all the other options are wrong