Answer :
Final answer:
A proxy server is a network server that ensures compliance with an organization's security policy by filtering and monitoring network traffic.
Explanation:
The correct answer is c) Proxy.
A proxy server acts as an intermediary between a client device and a server. It is responsible for handling requests and forwarding them to the appropriate server. In the context of network security, a proxy server can enforce an organization's security policy by filtering and monitoring network traffic.
For example, let's say an organization has a security policy that restricts access to certain websites. The proxy server can be configured to block requests to those websites, ensuring that all network devices comply with the policy.