B Review the hypothetical scenario below which concerns local area networks (LANs), then answer the series of questions about the scenario. Make sure each answer is thoroughly explained and that your reasoning behind your answers are included. Spidola, an organization that manufactures radios, uses many local area networks in its corporate office. Spidola naturally used earlier forms of Ethernet based on hubs when LANs were first becoming popular. While the LAN speeds in the corporate office have been upgraded several times over the years, the latest being an upgrade to 100 Mbps, Spidola continues to use hubs to this day. Though use of layer-2 switches is popular today, the network manager, Alan, likes that the price of hubs is significantly less than that of layer-2 switches, and also likes the fact that the network staff are already very familiar with hubs. Alan is also partial to older technologies because he believes that they have been time-tested and proven. He has also decided not to add wireless capabilities to the LANs, because he believes wireless LANs to be insecure. Not satisfied with these choices, the CEO of Spidola has hired you to review Spidola's LAN infrastructure and provide her with additional details and suggest improvements. Part 1: Wired LANs 1. If Spidola were to use wired 100Mbps layer-2 switches instead of wired 100Mbps hubs, a. how would throughput be affected? b. how would frame collisions be affected? c. how would frame loss be affected? d. how would LAN security be affected? e. how would future growth and speed upgrades be affected? 2. Given the information from #1, would you recommend to the CTO that Spidola's LANs be converted to use switches, despite the fact that switches are more expensive to purchase? Explain your reasoning. Part 2: Wireless LANs 3. If wireless capabilities are added to Spidola's LANs, a. what are two security vulnerabilities that would be easier to exploit when compared to Spidola's existing wired LANs? b. what are three steps that could be taken to mitigate or eliminate these vulnerabilities? c. what wireless protocol(s) would provide Spidola with fast and secure LAN access, while being readily available in modern network devices? 4. Given the information from #3, would you recommend to the CTO that wireless capabilities be added to Spidola's LANs, despite the security vulnerabilities? Explain your reasoning. Your submission will be evaluated according to the following grading rubric. Grade Qualities Demonstrated by the Assignment Submission Content (70%) Measures the quality of the content in the assignment A+  100 The content demonstrates exceptional understanding of all relevant subject matter and its inter-relationships. All major relevant issues are thoroughly covered, and all content is very focused and on-topic. There is no known way to improve the content, and there are absolutely no technical or coverage errors present. A  96 The content demonstrates exceptional understanding of all relevant subject matter and its inter-relationships. All major relevant issues are thoroughly covered, and all content is very focused and on-topic. At most one insignificant technical or coverage error may be present A-  92 The content demonstrates deep understanding of all relevant subject matter and its inter-relationships. All major relevant issues are covered, and all content is on-topic. B+  88 The content demonstrates understanding of all relevant subject matter and its inter-relationships. Almost all major relevant issues are covered, and the content is at least reasonably on-topic. B  85 The content demonstrates understanding of most relevant subject matter and its inter-relationships. Almost all major relevant issues are covered, and all content is at least reasonably on-topic. B-  82 The content demonstrates moderate understanding of much relevant subject matter and its inter-relationships. There is reasonable coverage of major relevant issues, and the content is at least reasonably on-topic. C+  78 The content demonstrates some understanding of relevant subject matter and its inter-relationships. Some major relevant issues are covered, and at least some content is on-topic. C  75 The content demonstrates understanding of a small portion of the relevant subject matter and its inter-relationships. Some major relevant issues are covered, and at least a small portion of the content is on-topic. C-  72 The content demonstrates little understanding of and insight into the relevant subject matter and its inter-relationships. A small portion of the major relevant issues are covered. The focus of the content may be off topic or on insubstantial or secondary topics D  67 The content demonstrates almost no understanding of or insight into the relevant subject matter and its inter-relationships. Almost none of the major relevant issues are covered, and the content may be almost entirely off-topic. F  0 The content demonstrates no understanding of or insight into the relevant subject matter and its inter-relationships. No major relevant issues are covered, and the content is entirely off-topic. Exposition (30%) Measures how well the content is expressed A+  100 The presentation of all ideas and designs is exceptionally clear and persuasive; the entire submission is exceptionally organized. There is no known way to improve the clarity or organization of the submission. A  96 The presentation of all ideas and designs is exceptionally clear and persuasive; the entire submission is exceptionally organized. There may be at most one insignificant way to improve the clarity or organization of the submission. A-  92 The presentation of all ideas and designs is very clear and persuasive; the entire submission is very organized. B+  88 The presentation of all ideas and designs is clear and persuasive; the entire submission is organized. B  85 The presentation of most ideas and designs is clear and persuasive; most of the submission is organized. B-  82 The presentation of most ideas and designs is generally clear; most of the submission is reasonably organized. C+  78 Some parts of the submission are hard to understand; some parts are disorganized. C  75 About half of the submission is hard to understand; about half is disorganized. C-  72 Most parts of the submission are hard to understand; most parts are disorganized. D  67 Almost all of the submission is hard to understand and disorganized. F  0 The entire submission is hard to understand and disorganized.