Free PW0-100 Exam Braindumps (page: 4)

Page 4 of 151

The IEEE 802.11 standard contains specifications on which of the following technologies?

  1. 2.4 GHz FHSS, 2.4 GHz DSSS, Infrared
  2. 2.4 GHz DSSS, 2.4 GHz FHSS
  3. 2.4 GHz DSSS, Bluetooth
  4. 2.4 GHz FHSS, Infrared

Answer(s): A



Installing an extension cable to an antenna in a wireless LAN will have what effect? (Choose two)

  1. The coverage distance of the antenna will be decreased.
  2. The equivalent isotropically radiated power will be decreased.
  3. There will be no effect
  4. The RF signal power at the antenna input will be increased.

Answer(s): A,B



Multipath can cause which of these effects at the receiving antenna? (Choose all that apply)

  1. Increased signal amplitude.
  2. Decreased signal amplitude.
  3. Null signal.
  4. Signal distortion.

Answer(s): A,B,C,D



Which two of the following security issues exist with 802.11?

  1. No support for encryption.
  2. No support for roaming.
  3. Vulnerable to disassociation attacks.
  4. No central authentication, authorization, or accounting support.

Answer(s): C,D

Explanation:

disassociation service - An IEEE 802.11 term that defines the process a station or
access point uses to notify that it is terminating an existing association.
Ref D:
opensystem authentication - The IEEE 802.11 default authentication method, which is a very simple, two-step process. First the station wanting to authenticate with another station sends an authentication management frame containing the sending station's identify. The receiving station then sends back a frame alerting whether it recognizes the identity of the authenticating station.
the PPP authenticator merely passes through the authentication exchange.



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