(c)We Want to Hear from You
CCNA Wireless (640-722 UUWNE) Quick Reference
First Edition
Copyright © 2012 Cisco Systems, Inc.
ISBN-10: 1-58714-308-9
ISBN-13: 978-1-58714-308-3
Warning and Disclaimer
Every effort has been made to make this book as complete and as accurate as possible, but no warranty or fitness is implied. The information provided is on an "as is" basis. The author and the publisher shall have neither liability nor responsibility to any person or entity with respect to any loss or damages arising from the information contained in this book or from the use of the CD or programs accompanying it.
When reviewing corrections, always check the print number of your book. Corrections are made to printed books with each subsequent printing.
First Printing: April 2012
Corrections for July 29, 2013
|Pg |Error |Correction |
|26 |Chapter 1, Figure 1-4 |Should read: |
| |Reads: |[pic] |
| |[pic] | |
Corrections for May 25, 2012
|Pg |Error |Correction |
|13 |Chapter 1, Second sentence at top |Should read: |
| |Reads: | |
| |This means for previous examples that B is 6 dBm stronger than A (1 mW x 2=2 mW.2|This means for previous examples that B is 6 dBm stronger than A (1 mW x 2=2 mW.2 mW x 2=4mW, you |
| |mW x 2=4mW, you added 3 dB [multiplied by 2] twice), but D is 20 dBm stronger |added 3 dB [multiplied by 2] twice), but D is 10 dBm stronger than A (1 mW x 10 = 10 mW.10 mW x 10 = |
| |than A (1 mW x 10 = 10 mW.10 mW x 10 = 100 mW). |100 mW). |
|57 |Chapter 2, Figure 2-5, Sniffer box |Should read: |
| |Reads: | |
| |Captures Frames on 12.4 GHz and 15 GHz Channel, Sends to Remote Station |Captures Frames on 1 x 2.4 GHz and 1 x 5 GHz Channel, Sends to Remote Station |
Corrections for May 04, 2012
|Pg |Error |Correction |
|32 |Chapter 1, Second paragraph, first sentence |Should read: |
| |Reads: | |
| |All these techniques enable 802.11n stations to achieve and data rate of up to |All these techniques enable 802.11n stations to achieve and data rate of up to 144 Mbps when using |
| |144 Mbps when using two streams (two radio chains), short guard intervals and 20 |two streams (two radio chains), short guard intervals and 20 MHz channels, and 300 Mbps when using |
| |MHz channels, and 300 MHz when using two streams (two radio chains), short guard |two streams (two radio chains), short guard intervals and 40 MHz channels. |
| |intervals and 40 MHz channels. | |
This errata sheet is intended to provide updated technical information. Spelling and grammar misprints are updated during the reprint process, but are not listed on this errata sheet.
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