Question

You can block logical ports from invaders and make your computer invisible to others on the internet by installing ________. a firewall a packet sniffer antivirus software a packet filter

Answer 1

A firewall is the best choice. This will help protect your computer from being seen on a network and being invaded by snoopers who are wanting to do damage to your system or files. Having a firewall is the first line of defense against hacking and sabotage.