Which of the following problems can be caused by VSWR? Select two.
Answer(s): A,B
CWNA Offical Study Guide, 3rd Edition, page 41 (Effects of VSWR)
In a DSSS system, which of the following channel pairs DO NOT overlap? Select two.
Answer(s): B,D
DSSS (ISM band) channels are indeed 22 MHz wide ? for example, the FCC-specified channel 1 occupies 2.412 GHz +/- 11 MHz. But only one radio can transmit on this channel at any point in time -- using the 802.11b standard, a chipping code spreads signal across the entire 22 MHz channel. All other radios MUST listen when another radio is transmitting to avoid interference. Consider adjacent two radios, one listening to channel 1 (2.412 GHz) and another sending on channel 3 (2.422 GHz). These channels overlap from 2.412-2.422 GHz, so outgoing signal on channel 3 will collide with simultaneous incoming signal on channel 1. The result would be a high bit error rate and excessive retransmission, yielding low or even no effective throughput. For best results, adjacent radios should use non-overlapping channels? For example, the minimum 3 MHz gap between channels 1 and 6 (2.437 GHz). Wider inter-channel gaps further reduce the probability of interference.
http://expertanswercenter.techtarget.com/eac/knowledgebaseAnswer/0, 295199, sid63_gci976361, 00.html
What type of scanning requires listening to each channel for a specified period of time awaiting transmission of beacons that contain proper SSIDs for association?
Answer(s): A
This can be easily verified in page 246 in CWNA Study Guide 2nd edition
What RF communications technique is categorized by low peak power and wide bandwidth?
Answer(s): C
Spread Spectrum - A radio transmission technology that "spreads" the user information over amuch wider bandwidth than otherwise required in order to gain benefits such as improved interference tolerance and unlicensed operation.
Post your Comments and Discuss CWNP PW0-100 exam with other Community members:
willianzd@terra.com.br commented on October 16, 2014 Preciso do desconto para EW0-300, Cisco CCNA, Huawei HCNA. ITIL entre outros... UNITED STATES upvote
Ridhi commented on June 22, 2013 Myfeedback about HP0-064. EXCELLENT... I pass. Very Excellent GTA upvote
Taylor G commented on June 22, 2013 The good news is I passed the exam! Dijon upvote
Ridhi commented on April 20, 2009 Myfeedback about HP0-064. EXCELLENT... I pass. Very Excellent GTA upvote
Taylor G commented on April 18, 2009 The good news is I passed the exam! Dijon upvote
Our website is free, but we have to fight against bots and content theft. We're sorry for the inconvenience caused by these security measures. You can access the rest of the PW0-100 content, but please register or login to continue.