Match Each of the Following Terms to Its Definition

Match each of the following terms to its definition:
I. packet filtering
II. zombie
III. firewall
IV. network address translation
V. packet sniffer
A. technique of assigning hidden internal IP addresses to protect a network against hackers
B. method for selectively allowing certain requests to access a port
C. hardware or software for protecting computers from hackers
D. a computer controlled by a hacker
E. program used by hackers to look at individual packets as they travel on the Internet