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Free PW0-100 Exam Braindumps
PW0-100 Wireless LAN Administration, Certified Wireless Network Administrator (CWNA) Questions 201–205 (page: 42)

Updated On: 10-Feb-2026
Page 42 of 122
PDF with 477 Questions

What unit of measurement is used to determine the insertion loss on wireless LAN splitters?

  1. dB
  2. dBi
  3. dBm
  4. milliwatts

Answer(s): A

Explanation:

Power gain and loss are measured in decibels, not in watts, because gain and loss are relative concepts and a decibel is a relative measurement. Gain or loss in an RF system may be referred to by absolute power measurement (e.g. ten watts of power) or by a relative power measurement (e.g. half of its power).


Reference:

CWNA Official Study Guide, Page 31



Which of the following are security issues within the 802.11 standard? (Select all that apply.(Select all that apply.)

  1. No support for encryption.
  2. No support for roaming.
  3. Vulnerable to disassociation attacks.
  4. No central authentication, authorization, or accounting support.
  5. Specifies use of the SSID as a dynamic security mechanism.

Answer(s): C,D



What statement defines the term POLARIZATION?

  1. The power supply's positive/negative orientation.
  2. The signal's modulation type (Amplitude-, Frequency-, or Pulse Width-Modulated).
  3. The antenna's latitudinal position, with respect to the North and South Poles.
  4. The vertical or horizontal orientation of the electrical field around the antenna.

Answer(s): D

Explanation:

Polarization is the physical orientation of the antenna in a horizontal or vertical position. The electric field is parallel to the radiating elements (the antenna element is the metal part of the antenna that is doing the radiating) so, if the antenna is vertical, then the polarization is vertical.
Horizontal polarization - the electric field is parallel to the ground Vertical polarization - the electric field is perpendicular to the ground
Reference:
CWNA Official Study Guide, Page 112



An access point that emits a 1000 milliwatt signal is connected to a cable and its connectors with 10 dB loss. The cable is then connected to a 3 dB gain antenna. What is the resulting EIRP in milliwatts from the antenna?

  1. 100 mW
  2. 200 mW
  3. 300 mW
  4. 500 mW

Answer(s): B



What may result when a 2.4 GHz DSSS phone is located near an 802.11b compliant access point?

  1. The phone will always interfere with the access point.
  2. The access point will always interfere with the phone.
  3. The phone will interfere with the access point when they are on the same channel.
  4. The access point will always avoid use of the same frequencies that the phone is using.
  5. The phone will always choose a channel different from the access point.

Answer(s): C

Explanation:

Microwave ovens, 2.4 GHz cordless phones, radiology equipment, and baby monitors are common sources of RF interference in the 2.4 GHz band. These potential interference sources need to be documented in the survey as potential problems with the installation. Microwave ovens can easily be replaced, though radiology equipment in a hospital installationmay not be. 2.4 GHz phones running on the same channel as the wireless LAN can render a wireless LAN useless.


Reference:

CWNA Official Study Guide, Page 323



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