When Alice calls Bob, Bob can pronounce the eight words (or 10 words) for Alice. The words are ... A firewall is a device (usually a router or a computer) installed between the internal network of an organization and the rest of the Internet.
|Title||:||Data Communications and Networking|
|Author||:||Behrouz A. Forouzan, Sophia Chung Fegan|
|Publisher||:||Huga Media - 2007|