You want to upgrade a workstation by adding a USB 3.0 card, and upgrading the video card, sound card, and NIC. Which of the following upgrades would MOST likely require upgrading the power supply?

What type of sub-query is an embedded SELECT expression that returns one or more columns and zero to many rows?

a. Row sub-query b. Table sub-query c. Scalar sub-query

A(n) ____________________ is a set of pages on a server that are viewed through a web browser by a visitor.

Fill in the blank(s) with the appropriate word(s).