| Bluetooth is easily the best in wireless handheld | | | | 12. All Bluetooth devices are capable of |
| technology. When it comes to learning, Bluetooth | | | | transmitting voice. |
| can get quite complicated. To help you, you'll find | | | | 13. The channel has a total capacity of 1 MB per |
| the key learning points of Bluetooth below: | | | | second. |
| Go here and see the newest Bluetooth Headsets: | | | | 14. There are two types of channels with |
| 1. Bluetooth is an energy efficient, low overhead | | | | Bluetooth - SCO (Synchronous Connection |
| communication protocol that's ideal for interdevice | | | | Oriented) and ACL (Asynchronous Connectionless). |
| communications. | | | | 15. The SCO channels are time oriented, and are |
| 2. Unlike infrared, Bluetooth doesn't require a line | | | | therefore primarily used for transferring time |
| of sight. | | | | critical data such as voice. |
| 3. Depending on the implementation, Bluetooth can | | | | 16. ACL channels are normally used for |
| have a range of up to 100 meters. | | | | communicating data. |
| 4. The specification of Bluetooth consists of a | | | | 17. Data contained in a packet can be up to 2,745 |
| Foundation Profile Document and a Foundation | | | | bits in length. |
| Core Document. | | | | 18. In a single piconet, there can be up to three |
| 5. The protocol stack for Bluetooth consists of | | | | SCO links containing 64,000 bits a second each. |
| core protocols, cable protocols, and even adapted | | | | 19. To avoid collision and timing problems, SCO |
| protocols. | | | | links are reserved slots that are set up by the |
| 6. The transmitter operates around the 2.4 GHz | | | | master. |
| frequency band. | | | | 20. The masters can support up to three SCO |
| 7. The data channel will change frequency, or | | | | links with one, two, or three slaves. |
| hops, 1,600 times in a second, between the 79 | | | | 21. The slots that aren't reserved for SCO links |
| allocated channels in the ISM band. | | | | can be used as ACL links. |
| 8. Bluetooth utilizes a spread spectrum frequency | | | | 22. The LMP (Link Management Protocol) will |
| hopping RF characteristic to ensure that | | | | handle link level security, error corrections, and |
| independent networking operates when the other | | | | the establishment of communications links. |
| devices are in range. | | | | 23. The LMP packets will have priority over user |
| 9. A piconet is formed when one or more devices | | | | packets that originate and form the L2CAP layer. |
| open up a channel of communication. | | | | 24. The L2CAP layer will ensure an acceptable |
| 10. A piconet can have a master and up to seven | | | | quality of service. |
| slaves. | | | | 25. No more than one ACL link can exist at the |
| 11. Communication of the interdevice is based on | | | | L2CAP layer. |
| the concepts of channels. | | | | |