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Unformatted text preview: BIT 200 Study Guide as of Dec 6, 2010 From the syllabus: The final exam will consist of multiple choice, matching and true/false questions. It will be computer graded using an optically scanned form. Any material covered during the semester is fair game on this exam. Key points to remember about this guide • Some questions on the exam do not directly relate to any of the questions listed in this study guide. • Some questions on this study guide will not be directly tested on the exam. • Thus, this guide is merely a guide, not a how-to manual for the exam. If you can answer many of the questions listed in each section, you should be fine for the exam. Possible source materials Slides and handouts (most available on CTools) ✓ Assignments ✓ Tutorials ✓ Videos: History of Computing (ignore other videos) ✓ Interactive in-class activities ✓ • “Computer Concepts” book • Course pack Which areas get the most emphasis? • A plurality of questions will measure your understanding of infrastructure past, present, and future (in networks, software, and hardware). • Databases (designing them, using them) will be a major topic • Basic IS concepts, plus IS management (SDLC, Harley) will together be another major topic • Excel will be a minor topic since so many assignments have covered it, but spreadsheet modeling and validation will receive coverage • Web technology (delicious, search, wikis) will be a minor topic since most of the learning comes from repeated use. Infrastructure Networks: Networking • What are the seven components of a computer network? Be able to identify those components within a network. Computers, networking hardware, media, communications software, protocols, providers, applications • What’s the difference between a router and a switch? Which one creates a LAN? Which one connects networks? Router-routes traffic BETWEEN networks Switch-controls traffic ON A SINGLE network (LAN) 1 • What are a couple of examples of wired and wireless media? What’s the relative speed of these? Wired: Twisted Pair (≤10 Mbps), Coaxial media (≤200 Mbps) Wireless: WiFi (from 11 to 200+ Mbps) • What’s the difference between a LAN and a WAN? A Local Area Network is a network where computers are within a single department or building. A Wide Area Network is a network that covers several buildings or cities. • What is the Carrier Sense Multiple Access and Collision Detection (CSMA/CD) protocol used for and, in general terms, how does it work? Access to shared media is via CSMA/CD. How CSMA/CD works: –NIC (network interface card) checks to see if media is idle –If so, NIC transmits frame and listens for collision –If NIC detects collision with frame of another NIC, it waits a random amount of time and retransmits frame • What is the difference between circuit switching and packet switching?...
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- Fall '08
- Relational model, Computer data storage