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CompTIA® Network+® 2009 In Depth by Tamara Dean

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Appendix E. Glossary

1 gigabit per second (Gbps)

1,000,000,000 bits per second.

1 kilobit per second (Kbps)

1,000 bits per second.

1 megabit per second (Mbps)

1,000,000 bits per second.

1 terabit per second (Tbps)

1,000,000,000,000 bits per second.

2.4GHz band

The range of radio frequencies from 2.4 to 2.4835GHz. The 2.4GHz band, which allows for 11 unlicensed channels, is used by WLANs that follow the popular 802.11b and 802.11g standards. However, it is also used for cordless telephone and other transmissions, making the 2.4GHz band more susceptible to interference than the 5GHz band.

3DES

See Triple DES.

3-tier architecture

A client/server environment that uses middleware to translate requests between the client and server.

5GHz band

A range of frequencies ...

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