MINI-CASES I. Cathy’s Collectibles Your cousin Cathy runs a part-time business out of her apartment. She buys and sells collectibles such as antique prints‚ baseball cards‚ and cartoon cells and has recently discovered the Web with its many auction sites. She has begun buying and selling on the Web by bidding on collectibles at lesser-known sites and selling them at a profit at more well-known sites. She downloads and uploads lots of graphics (pictures of the items she’s buying and selling). She
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Mini Case II. Central University Suppose you are the network manager for Central University‚ a medium-size university with 13‚000 students. The university has 10 separate colleges (e.g.‚ business‚ arts‚ journalism)‚ 3 of which are relatively large (300 faculty and staff members‚ 2‚000 students‚ and 3 buildings) and 7 of which are relatively small (200 faculty and staff‚ 1‚000 students‚ and 1 building). In addition‚ there are another 2‚000 staff members who work in various administration departments
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CHAPTER 11 & 12 MINI-CASES I. Belmont State Bank Belmont State Bank is a large bank with hundreds of branches that are connected to a central computer system. Some branches are connected over dedicated circuits and others use the dial-up telephone network. Each branch has a variety of client computers and ATMs connected to a server. The server stores the branch’s daily transaction data and transmits it several times during the day to the central computer system. Tellers at each branch use a
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HOMEWORK WEEK 6 9.) Compare and contrast circuit-switched services‚ dedicated-circuit services‚ and packet-switched services. Circuit switched services are the oldest approach to MAN and WAN circuits. They began operating over the PSTN or the Public Switched Telephone Network that carriers like AT&T‚ and Bell South ran on. A simple telephone call is based off of this premise. Circuit switched services rely on cloud architecture. This means that the users must lease connection points into the
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MIS 589 Chapter 1 Questions 7. How do local area networks (LANs) differ from metropolitan area networks (MANs)‚ wide area networks (WANs)‚ and backbone networks (BNs)? Local area networks (LANs) consist of microcomputers located in a same general area. LANs usually share circuits where computers take turns using the same circuit. In a metropolitan area networks (MANs)‚ a network usually covers a citywide area. Wide area networks (WANs) span a large geographical area. WANs span a larger area
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HOMEWORK WEEK 5 3. Compare and contrast the two types of antennas. There are mainly two types of antennas: omnidirectional‚ and directional. Omnidirectional antennas are installed on most WLANS with AP’s that have them. Omnidirectional antennas do just what they sound like‚ which is transmit data in all directions at the same time. The signal can go horizontally and vertically; and up and down. However‚ there can be a dead spot in a minute area directly above the antenna which has no signal.
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HOMEWORK QUESTIONS WEEK 4 3.) What are the parts of TCP/IP and what do they do? Who is the primary user of TCP/IP? TCP/IP is the transport/network layer protocol we use on the internet. Many BN’S‚ MAN’s and WAN’s rely on it. This is because it is relatively efficient‚ and transmission has few errors. Any errors that are found‚ are checked and so large files can be sent even in the most unsafe network and the data will still be unchanged. TCP/IP is very compatible with a number of data link protocols
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Donvail Wilson MIS 589 Week #2 You Decide After carefully interviewing the Stake holders of the Leonard Cooper Charter School‚ several issues were observed. The first noticeable concern was the print server. Their management of print jobs on the print server are called into question because of the many collisions on the print server. They are presently using a half-duplex system for their print jobs. A half-duplex system provides signal communication in both directions‚ however
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technology and price it‚ select the cabling and price it‚ select the devices and price them‚ and so on). Prices are available at www.datacommwarehouse.com‚ but use any source that is convenient. For simplicity‚ assume that category 5‚ category 5e‚ category 6‚ and fiber-optic cable have a fixed cost per circuit to buy and install‚ regardless of distance‚ of $50‚ $60‚ $120‚ and $300‚ respectively. The Buffalo Business Switch Gaga Switching Hub is a fixed(managed) switch and has the bandwidth necessary to
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Case 1 – page 6 1. How do information technologies contribute to the business success of Sew What .Inc? Give several examples. The following are information technologies that contribute to the success of Sew What. a) Computer software technology: Website • For example‚ before they put up their website (www.sewwhatinc.com) business was almost all local. Duckett admitted that business couldn’t grow optimally only by word of mouth without embracing technology. However‚ after launching website‚ they
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