Wired & Wireless Lans

1484 Words Aug 3rd, 2010 6 Pages
Question 1:-

Compare and contrast wired and wireless LANs. What unique concerns must be addressed by the designer of a wireless networks.

Answer 1:-

Introduction:

LAN is a local Area Network and a computer network covering a small physical area, like a home, office, restaurant or small group of buildings, such as a school, a college or an airport. Although a LAN can be used as an isolated network to connect computers in an organization for the sole purpose of sharing resources, most LANs today are also linked to a wide area network or the Internet. A LAN can be one of two types: wired or wireless. A wired LAN requires Ethernet cable to physically connect all computers on the network to a main device called a switch. Below is an example
…show more content…
Use of modem or broadband router cost more, but these are optional components of a wired LAN, and their higher cost is offset by the benefit of easier installation and built-in security features. | While Wi-Fi networks are often seen as simple and inexpensive to deploy, there are plenty of hidden costs and complexities lurking under the surface. Wireless LAN deployments are often expensive for companies because RF surveys, which help ensure proper network coverage. Now wireless products have dropped in price considerably. | 3. Reliability | Ethernet cables, hubs and switches are extremely reliable compare to wireless products, mainly because manufacturers companies are improving day by day over several decades. Loose cables likely remain the single most common and annoying source of failure in a wired network. When installing a wired LAN or moving any of the components later, be sure to carefully check the cable connections. As all products are improving their reliability, broadband routers are also improving compare to those old days one. | Wireless LANs are facing some problem in reliability but manufacturers are improving their reliability day by day. 802.11b and 802.11g wireless signals are subject to interference from other home appliances including microwave ovens, cordless telephones, and garage door openers. With careful installation, the likelihood of interference can be minimized. Now 802.11g are also