The text describes a/an as a "gatekeeper" system that protects a company's intranets and other computer networks from intrusion by providing a filter and safe transfer point for access to and from the internet and other networks. select one: a. firewall b. filtered portal c. encoder d. telecommunications line

a. firewall

Explanation:

Firewall -

It act as a network security system , which controls and monitor he outgoing and incoming traffic via some predefined set of rules and regulation , is known as a firewall .

It is a type of barrier or a gateway between the the trusted and untrusted network .

Hence , from the question ,

The correct term for the given statement is firewall .