IT revision, key topic areas: Topology, Backups, Protocols, File types, Networks, Bandwidth, Latency, Compression, Cache, Data Capture system, Connection methods.

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• 2. What are the two main ways in which devices connect to a LAN network? (7, 2, 4)
• 3. What wired system connection method is used for all types of data communication, (e.g commonly used in TV cabling). (7)
• 7. What are the two main types of compression? (5, 3, 8)
• 8. What is the common file format for files made using powerpoint software? (3)
• 9. What file type is good for streaming? (3)