信息系统复习参考7(9)

CASE: Evaluation in terms of assess Objective: 7.3

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84) You have been hired by a small new Web design firm to set up a network for its single office location. The network is primarily needed for exchanging files, accessing and managing beta Web sites on their Web server, and connecting to the Internet. The firm hires many freelancers who come into the office on an ad-hoc basis and it does not have a lot of money to spend on infrastructure. What type of network will you recommend?

Answer: Student answers will vary. An example answer is: I would recommend a mixed Ethernet and wireless network. The Ethernet LAN would connect the Web servers and primary

workstations and connect via cable service to the Internet. Freelancers could connect wirelessly via access points. Diff: 3 Page Ref: 153-254, 276-277 AACSB: Analytic Skills

CASE: Evaluation in terms of assess Objective: 7.2

85) What are the business advantages of using voice over IP (VoIP) technology?

Answer: Business can lower costs by using the Internet to deliver voice information, avoiding the tolls charged by local and long-distance telephone networks. They can lower costs from not having to create a separate telephone network. VOIP enables communication by supporting Internet conference calls using video. VOIP also provides flexibility phones can be added or moved to different offices without rewiring or reconfiguring the network. Diff: 2 Page Ref: 264-265 AACSB: Analytic Skills

CASE: Evaluation in terms of assess Objective: 7.3

86) How are RFID systems used in inventory control and supply chain management?

Answer: In inventory control and supply chain management, RFID systems capture and manage more detailed information about items in warehouses or in production than bar coding systems. If a large number of items are shipped together, RFID systems track each pallet, lot, or even unit item in the shipment. This technology may help companies improve receiving and storage operations by enhancing their ability to \shelves. Diff: 1 Page Ref: 280 AACSB: Analytic Skills

CASE: Analysis in terms of summarize Objective: 7.5

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87) What are wireless sensor networks? How do they work and what are they used for?

Answer: Wireless sensor networks (WSNs) are networks of interconnected wireless devices that are embedded into the physical environment to provide measurements of many points over large spaces. These devices have built-in processing, storage, and radio frequency sensors and antennas. They are linked into an interconnected network that routes the data they capture to a computer for analysis. These networks range from hundreds to thousands of nodes. Because wireless sensor devices are placed in the field for years at a time without any maintenance or human intervention, they must have very low power requirements and batteries capable of lasting for years. Wireless sensor networks are valuable in areas such as monitoring environmental changes; monitoring traffic or military activity; protecting property; efficiently operating and managing machinery and vehicles; establishing security perimeters; monitoring supply chain management; or detecting chemical, biological, or radiological material. Diff: 1 Page Ref: 281 AACSB: Analytic Skills

CASE: Analysis in terms of summarize Objective: 7.5

88) What is Web 3.0, and how do you think Web 3.0 developments could impact businesses? Answer: Web 3.0 is the vision of the next generation of the Web in which all of the information available on the Web is woven together into a single experience. The related movement called the Semantic Web is a collaborative effort to add a layer of meaning to existing information to reduce the amount of human time spent in searching and processing that information. Student views on the impact on businesses would vary. An example answer is: This potentially could have huge effects on businesses as simple analysis becomes mechanized, requiring fewer humans to perform this basic task. Diff: 2 Page Ref: 274-275 AACSB: Analytic Skills

CASE: Evaluation in terms of assess Objective: 7.3

89) Blogs, wikis, and social networking sites were designed for individuals to communicate with each other. What uses do businesses have for these tools? Give specific examples.

Answer: Businesses can use these tools to reach out and market to potential new customers. For example, many businesses have Facebook sites to market their product to specific groups on Facebook. They can use these tools to support and give added value to existing customers. For example, a software company could have a blog that discusses in-depth use of a software product. Businesses can also use these tools within their company to communicate between departments and share knowledge. For example, a company wiki could be set up as a repository of expert information. Diff: 2 Page Ref: 273-274 AACSB: Analytic Skills

CASE: Synthesis in terms of build, model Objective: 7.3

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Copyright ? 2012 Pearson Education, Inc.

90) What has made the Google search engine so successful?

Answer: The Google search engine became so successful because it was one of the first search engines to incorporate page ranking: Not only does it index the Web pages it finds according to both keywords and combinations of keywords, it also ranks each page according to the number of pages that link to it, and the number of pages it links to itself. This helped make search results more relevant when compared to search engines relying solely on key words used on Web pages. A user could be relatively certain that they would find relevant information within the top results of a Google search. Improved search results for the user, alo …… 此处隐藏：4136字，全部文档内容请下载后查看。喜欢就下载吧 ……