Lossy compression techniques discard some data from an image to shrink its file size.

You can personalize many aspects of your profile

Indicate whether the statement is true or false

Known as the ping service, ICMP is a(n) __________ and should be ___________.

A. essential feature, turned on to save money B. common method for hacker reconnaissance, turned off to prevent snooping C. infrequently used hacker tool, turned off to prevent snooping D. common method for hacker reconnaissance, turned on to save money