If you use a length unit when setting line height, you should specify its value using a(n) ____ value.

Which hardware component is most suspect if a user can barely make out words on a laptop screen (even though the brightness control is at full brightness)?

A) Power supply B) Motherboard C) AC adapter D) Backlight

What protocol is used to retrieve email using an email client application but leaves the email on the server?

A) POP3 B) IMAP C) SMTP D) SNMP E) HTTP