Tag - CWT-100 exam

How many non-overlapping channels are available in regulatory domains in the 2.4 GHz frequency band? Select one:A . 14B . 1C . 3D . 11View AnswerAnswer: C

What best describes passive scanning used to locate WLANs?A . Sending probe requests and listening for probe responsesB . Scanning in only on frequency bandC . Listening for beacon frames from the APsD . Scanning on only one channelView AnswerAnswer: C

A device is a 3x2:2 device. How many spatial streams can it receive?A . 3B . 9C . 6D . 2View AnswerAnswer: D

What can occur when two copies of a signal wave arrive at the receiver at the same time, but 180 degrees out of phase which each other?A . Increased signal amplitudeB . Bits may be added to the total countC . Increased signal strengthD . Signal nulling or cancellationView AnswerAnswer:...

What is the maximum channel width supported by 802.11ac (VHT) in the standard?A . 40 MHzB . 80 MHzC . 160 MHzD . 20 MHzView AnswerAnswer: C

What kind of antenna chart shows the radiation pattern of an antenna from the side view of that antenna?A . Top-downB . AzimuthC . HorizontalD . ElevationView AnswerAnswer: B

What is defined as the bending of an RF wave as it passes through a medium? Select one:A . ReflectionB . RefractionC . AbsorptionD . ScatteringView AnswerAnswer: B

How many non-overlapping 20 MHz channels are available in the 5 GHz frequency band assuming the regulatory domain allows them all?A . 11B . 25C . 24D . 14View AnswerAnswer: C

In what way are 802.11 channels defined?A . By a high frequency and channel widthB . By channel width aloneC . By a center frequency and channel widthD . By a low frequency and channel widthView AnswerAnswer: B

What is a common problem in specialty Wi-Fi devices?A . The use of 802.11 VHT-only chipsetsB . The use of older, less capable 802.11 chipsetsC . The use of 802.11 DSSS-only chipsetsD . The use of newer, more capable 802.11 chipsetsView AnswerAnswer: B