Cisco Networking

Cisco Networking a multinational corporation with more than 63,000 employees and annual revenue of $35 billion as of 2007 - Cisco Systems, Inc. the headquarters of Cisco - San Jose, California the five brands that design and sells networking and communications technology and services - Cisco, Linksys, WebEx, IronPort, and Scientific Atlanta consist of computers, wiring, and other devices, that are used to move data from one place to another - Networking the way _______ is transmitted across the internet - Data model defines a networking framework for implementing protocols in seven layers - OSI or Open System Interconnection control is passed from one layer to the next as data moves through the _______ - Network a type of cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield - Coxial a cable containing one or more optical fibers that are used to carry light - Fiber Optics a cable is a type of twisted pair cable that is used in local area networks to connect a computer to a network hub such as a router - Cat 5 (Ethernet) - Straight Through a type of Ethernet cable used to connect computing devices together directly - Cat 5 (Ethernet) - Crossover differences between 568A and 568B - the order in which the pairs are used (orange and green) networking devices used to connect hosts (personal computers) to a larger network - Hubs - Layer 1 Switches - Layer 2 - MAC Addressing Routers - Layer 3 - IP Addressing most home users have ISR's (Integrated Services Router) which are made up of _______, _______, _______ - Switch, Router, Wireless Access Point like sending a letter through the US Mail. If you don't have the address of where you want to send it, it will never reach the destination - Source and Destination IP Addresses