1. A friend is interested installing a wireless LAN in her small business. She h
ID: 654561 • Letter: 1
Question
1. A friend is interested installing a wireless LAN in her small business. She has approximately 15 employees who primarily use office automation applications with printed require access to the internet. The phone is independent from the data network. Design a cost effective wireless network option that would provide adequate for the business needs keeping in mind your friend is very concerned about security associated with wireless networks.
2. Two switches are 46 meters apart. They need to communicate at 600 Mbps. What network design do you recommend? Justify your answer.
3. Two switches are 250 meters apart. They need to communicate at 1.6 Gbps. What network design do you recommend? Justify your answer.
4. Consider a one-story building that is a square. It will have an access points in each corner and one in the center of the square. All access points can hear one another.
a) Assign access point channels to the five access points if you are using 802.11 g. Try not have any access points that can hear each other on the same channel. Available channel are 1, 6, and 11
b) Were you able to eliminate interference between access points?
c) Repeat the first two parts of the questions this time using 802.11 a. Available channels are 36, 40, 44, 48, 53, 56, 60, 64, 149, 153, 157, and 161 but many NICs and access points only support channels below 100.
5. You perform a SETI@ Home search and get no response. List the possible causes and describe how you would test each cause.
Explanation / Answer
2.TCP/IP refers to the suite of protocols that allow conversations to happen on
the global Internet. By understanding TCP/IP, you can build networks that will
scale to virtually any size, and will ultimately become part of the global Internet.
3.WAN netwok is suitable becauseWANs are used to connect (LANs) and other types of networks together, so that users and computers in one location can communicate with users and computers in other locations. Many WANs are built for one particular organization and are private. Others, built by Internet service providers, provide connections from an organization's LAN to the Internet. WANs are often built using leased lines. At each end of the leased line, a router connects to the LAN on one side and a hub within the WAN on the other. Leased lines can be very expensive. Instead of using leased lines, WANs can also be built using less costly circuit switching or packet switching methods. Network protocols including TCP/IP deliver transport and addressing functions. Protocols including Packet over SONET/SDH, MPLS, ATM and Frame relay are often used by service providers to deliver the links that are used in WANs. X.25 was an important early WAN protocol, and is often considered to be the "grandfather" of Frame Relay as many of the underlying protocols and functions of X.25 are still in use today (with upgrades) by Frame Relay
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