You can restrict access to Web pages by requiring users to ____________________ before they can view the pages.

In VBA, a sequence structure executes program statements in the order that they appear

Indicate whether the statement is true or false

_____ is a powerful operating system originally developed by AT&T for minicomputers-the predecessors of servers that are larger than PCs and smaller than mainframes.

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