new ccna blueprint

new ccna blueprint. Small range - about 20 feet. Supports 8 active devices.No license required for the 2.4 GHz band.Called a miniature network.A WPAN is a network that works within a 20-foot range. The most common WPAN is Bluetooth. In a Bluetooth network, the 2.4GHz band can be used to communicate. Considering how many people use Bluetooth headsets, wireless mice, and similar things, you might expect this to cause a lot of conflict, but that's not the case. Bluetooth uses FrequencyHopping Spread Spectrum (FHSS) technology. Although this book does not discuss FHSS, it is important to understand that although Bluetooth operates at the same frequency as 802.11b and 802.11g, Bluetooth devices will not interfere as much as another AP operating at the same frequency, but interference does exist. Bluetooth communicates through a shared frequency hopping sequence within a local area, which then forms a piconet.A Bluetooth piconet can contain up to 8 active devices, but can contain many inactive devices. WPANs are typically in the unlicensed 2.4 GHz band and are standardized by the 802.15 IEEE working group. The WPAN research group was formed in 1998, and two months later the Bluetooth Special Interest Group (SIG, SpecialInterestGroup) was formed. Shortly thereafter, the study group became the IEEE 802.15 Working Group. The Bluetooth SIG has over 9000 members and continues to work on the technology.Note: The content of the SIG can be found at http://www.bluetooth.com/Bluetooth/SIG/.2. WLANWireless LAN has a larger coverage area than WPAN. A WLAN can cover a very small home office network or a very large enterprise network. The practical implication of a local area is that the organization deploying the WLAN is also responsible for managing the devices, and is likely to be the owner of those devices. WLANs have the following characteristics. Operates in the 2.4GHz or 5GHz band.