2.20. Answers to Review Questions

  1. C. A Media Access Control (MAC) address is a unique physical address that is assigned to each network interface card. MAC addresses are "burned into" the card at the manufacturer.

  2. D. The Presentation layer of the OSI model is responsible for converting and translating data into a form that can begin to be sent over the network. The Presentation layer provides compression and decompression as well as encryption and decryption. You can remember the Presentation layer as the translation layer.

  3. B. The Transport layer of the OSI model contains the protocols that are responsible for resending packets that do not receive an acknowledgment from the destination address. These protocols include TCP, SPX, and other protocols. ...

Get Network+™ Fast Pass now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial