A ________ is hardware or software that acts as a filter to prevent unwanted packets from entering a network.
A) firewall
B) virtual private network
C) proxy server
D) PPTP

Question

Quizplus · Accepted Answer

A firewall is specifically designed to prevent unwanted packets from entering a network. A virtual private network (VPN) allows users to securely access a network remotely, but does not necessarily act as a filter. A proxy server may filter traffic, but it can also be used for caching and forwarding purposes. PPTP (Point-to-Point Tunneling Protocol) is a method used for secure communication over a VPN, but it is not a hardware or software filter for unwanted packets.

A ________ Is Hardware or Software That Acts as a Filter