Chapter 1
| A1: | The primary purpose of a local-area network is to allow resource sharing. The resources may be devices, applications, or information. Examples of shared resources are files, databases, e-mail, modems, and printers. |
| A2: | A protocol is an agreed-upon set of rules. In data communications, the rules usually govern a procedure or a format. |
| A3: | A Media Access Control protocol defines how a given LAN medium is shared, how LAN devices connected to the medium are identified, and how frames transmitted onto the medium are formatted. |
| A4: | A frame is a digital “envelope” that provides the information necessary for the delivery of data across a data link. Typical components of a frame are identifiers (addresses) of the source and destination devices ... |
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