Error Detection Methods
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Information Processes and Technology Get I.T Connected Networks Communication Systems A local area network (LAN) is a computer network that is located in a limited area. Answer the following questions in your workbook to assist your revision of this topic. 1. Describe the advantages of a company connecting their computers using a LAN rather than using stand-alone computers in their office? ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... 2. Identify the minimum hardware required to connect the computers. ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... 3. To improve the performance and reliability of the network, what other hardware could be used? ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... 4. Describe the function of each of the following communication components a. Router.................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... b. Repeater ................................................................................................................................ ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... Information Processes and Technology Get I.T Connected Networks Communication Systems c. Switch ................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... d. Gateway ................................................................................................................................ ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... e. Web Server............................................................................................................................ ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... f. File Server ............................................................................................................................. ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... g. Print Server ........................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... 5. What is the difference between uploading and downloading a file? ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... Information Processes and Technology Get I.T Connected Networks Communication Systems 6. a. What is packet switching? ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... b. Describe the format of a packet? ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... ........................................................................................................................................................... Information Processes and Technology Get I.T Connected Networks Communication Systems 7. Three common topologies are Star, Ring and Bus. Complete the table for each topology Ring Description Bus Diagram Advantages Disadvantages Protocols – how do they handle contention? Star
