Lans and Wans

In: Computers and Technology

Submitted By thisisit
Words 1327
Pages 6
INDP-week 4
Erin Estes
Keshia Green

Local Area and Wide Area networks are essential to connecting Kudler Fine Foods together. As are the hardware and software needed to create and secure the networks. Each location will be set up with its own Wireless local area connection and they will all utilize the Internet to provide a Wide Area connection for the company as a whole.

LAN, WAN and Wireless technologies
Local Area Networks, or LANs, are a grouping of computers networked together in a generally small geographic area. LAN technology refers to the hardware and software used to create a local area network. The most common wired methods are Ethernet and Token Ring, and WLAN technologies using IEEE 802.11. WAN or Wide Area Network technologies include ATM. TCP/IP, and Frame Relay to connect and transfer data across large distances. Using a cable such as an Ethernet cable computers on a LAN are required to share the network when passing data packets back and forth. Before sending data across the network each computer checks the line for other transmissions. If the line is clear the computer sends the data, if not the computer waits. This method is called CSMA/CD. Wireless LANs or WLANs use RF signals to transmit data across the network. Every computer on a wireless local area network share the same frequency and take turns sending data just like using a cable. Wireless LANs use CSMA/CA to check for an open line of communication to it intended target. The sending device will send out a signal to the receiving device called a Request to Send. If the receiving device is available it will send a clear to send signal back to the host and to all other devices on the network. This alerts the other devices that there is a transmission between device A and B and that they must wait to send data over the network.

Switches, Routers and…...

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