Hello, please help with these questions!

1. What is the name of a network which only consists of Bluetooth devices? (5) 2. What is the central device in a wireless network called? (5)

3. Where is the repeater located in satellite based communications? (5) 4. Which technology is often used for managing home environment settings such as temperature and lights? (5) 5. What type of management system can be used in conjunction with barcodes or RFIDs to assist in checking stock for a warehouse and provide statistics for mangers? (5) 6. What is the main application of Ultra Wide Band technology? (5) 7. What is the data throughput and maximum range of Bluetooth devices? (5) 8. Why are cellular devices banned from health care environments?