A ____ identifies the sender of an e-mail message and may contain additional information, such as a job title and phone number(s).

Scrolling changes your view of the document as well as the position of the insertion point.

Answer the following statement true (T) or false (F)

Because T1 service is expensive, many providers offer a portion (one or more channels) of the T1 bundle to a customer, called _______________.

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