To protect a computer or a server, a(n) can be installed that would act as a barrier and inspect data being transmitted to or from the network. Group of answer

Firewall

Explanation:

Firewall is used to control access to a computer or network, as it creates a barrier between a computer or a network and the internet in order to protect against unauthorized access.

It is a security system pre-installed on most computers to essentially inspect data being transmitted to or from a computer.

Firewalls are typically bidirectional, it checks all sent and received data and only allow authorized traffic through.