Errata Sheet
CCNA® Cisco® Certified Network Associate Wireless Study Guide (Exam 640-721)
By: H. Henry Chou and Michael N. Kang
ISBN 0071701524   

Errata as of 06/28/2010


Page 36: In the second sentence, word "date" should be "data". Sentence should read, "Modulation is the process by which the date  data is placed on the medium and can be performed with different methods of modulation."

Page 112: Question 8, statement is incorrect, so answer should be 'B'.  Key says 'A' but the description in the key does not match the answer.
Answer key should thus read: "B. Bluetooth is based on FHSS technology."

Page 116: In the first sentence, word "conceived" should be "perceived". Sentence should read: "Wireless LAN has been perceived as an insecure media for network connectivity."

Page 118: In the last sentence, "need" should be "needed".  Sentence should read, "As discussed before, the information needed to get active access into a…"

Page 136: Question 8, says correct answer is 'B', a rogue network, but then in the key for D says that MITM is a type of rogue wireless network also.  Incorrect answer explanation should read, "A, C, and D are incorrect. Passive wireless sniffing is listening mode only. An ad hoc network does not actively connect to company sanctioned wireless network. Man-in-the-middle is accomplished when an attacker intentionally places an access point in between a legitimate wireless access point and its client(s)."

Page 148: Figure 5-5, at the top of the figure,"EAP-TLS" should be "PEAP".

Page 179: Table 6-1 contains duplicate entries for 3750 G Integrated WLAN Controller, and should only contain one entry.

Page 219: Question 4, answer A says "Probe response", but should be "Beaconing".  The answer key is correct.

Page 232: "On the Job" Section, last sentences, "edit" should be "allow".  Sentence should read, "The use tab function and question mark (?) are still available, but the controller CLI does not allow users to change part..."

Page 298: Question 9, answers C and D are duplicates.  Answer C should read, "n access point is set to use Global power settings by default."

Page 345: Caption "Figure 10-1" should be "Figure 10-3".

Page 369: In the first sentence, "Client" should be "Desktop".  Sentence should read, "A separate software utility that can be installed as a part of the Cisco Aironet Desktop Utility is the Cisco Aironet Site Survey Utility (CSSU)."

Page 370: In the second sentence, "ACU" should be "ADU".  Sentence should read, "Unlike the ADU, the CSSC supports almost all vendor wireless adapters..."

Page 378: In the second section, "ACU" and should be "ADU."  Sentence should read, "Unlike ADU and most other wireless clients, CSSC allows you to enforce security policies..."

Thanks to the following reader for submitting errata:

Rick Martin