Your friend Harvey says he won’t ever send any sensitive information, like his birthday, credit card number, social security number, or home address, through email because someone else besides the person he sends it to can always read it—that is, the mail server. Is Harvey correct? Should he be worried about this? Does it matter whether his email service uses POP or IMAP?

What are compression artifacts? 1) visible defects in the picture caused by the nature of the compression algorithm. 2) numbers that tell a web server how much to compress a picture for faster transmission. 3) invisible defects in the picture preserved by lossless compression. 4) numbers that tell a photo editing program how much to compress a picture for faster transmission.

Brian wants to conduct an online search with a certain phrase. he intends to use the words books that belong to the 1800s in his search. how should he use the word that in his search?

How is a wan different than a lan? both connect computers, but only wan users don’t need the same operating system. both are peer-to-peer networks, but only a wan requires networking hardware. both network computers, but only a wan can cover larger geographical ranges. both connect computers to the internet, but only wan connects to the cloud.