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PW0-100 Wireless LAN Administration, Certified Wireless Network Administrator (CWNA) Questions 321–325 (page: 66)

Updated On: 10-Feb-2026

According to the FCC, what is the frequency range of the 2.4 GHz ISM band?

  1. 2.4000 - 2.5000 GHz
  2. 2.4000 - 2.4750 GHz
  3. 2.4000 - 2.4725 GHz
  4. 2.4000 - 2.4835 GHz

Answer(s): D

Explanation:

The 802.11 radio WLANs operate in the 2.4GHz (2.4 to 2.483 GHz) unlicensed Radio Frequency (RF) band. The maximum isotropic transmission power in this band allowed by FCC in US is 1Wt, but 802.11 devices are usually limited to the 100mWt value.



What symptom cannot be caused by Multipath?

  1. Loss of signal at receiving end.
  2. Reduces signal strength at receiving end.
  3. Increased signal strength at receiving end.
  4. Appearance of ghost access points.
  5. Corrupted data at the receiving end.

Answer(s): D



The distance an RF signal will be propagated depends in part on which two of the following factors?

  1. Output power of the Intentional Radiator
  2. Spread Spectrum technology in use
  3. Transmission frequency
  4. Aperture size of receiving antenna

Answer(s): A,C

Explanation:

Pg 418 & 419 in CWNA User Guide 3rd edition



What is a characteristic of Ad Hoc wireless LANs?

  1. Support for client polling.
  2. The lack of an access point.
  3. Support for time-bounded services.
  4. Functionality to support seamless roaming between networks.
  5. VPN functionality.

Answer(s): B

Explanation:

The terms ad hoc and IBSS are interchangeable. Both indicate a lack of an access point in a wireless LAN where stations are communicating directly with each other.


Reference:

CWNA Official Study Guide, Page 228



Which communication methods may be used between access points? Select all that apply.

  1. Communicating over the wired segment in repeater mode.
  2. Communicating over the wired segment in root mode.
  3. Communicating over the wireless segment in repeater mode.
  4. Access points never communicate with each other.
  5. Communicating over the wired segment in bridge mode.

Answer(s): A,B

Explanation:

Root Mode is used when the access point is connected to a wired backbone through its wired (usually Ethernet) interface. Most access points that support modes other than root mode come configured in root mode by default.


Reference:

CWNA Official Study Guide, Page 103
A is correct as well. See CWNA Official Study Guide, 2nd Edition, Page 299



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