Free PW0-100 Exam Braindumps (page: 30)

Page 29 of 151

The 802.11 standard defines which of the following data rates for DSSS?

  1. 1Mb
  2. 2Mb
  3. 1 & 2Mb
  4. 1, 2, 5.5, AND 11Mb

Answer(s): C

Explanation:

IEEE 802.11. This standard specifies a 2.4 GHz operating frequency with data rates of 1 and 2
Mbps using either direct sequence (DSSS) or frequency hopping spread spectrum (FHSS). IEEE 802.11b data is encoded using DSSS (Direct Sequence Spread Spectrum) technology. DSSS works by taking a data stream of zeros and ones and modulating it with a second pattern, the chipping sequence.



What is the final step in conducting a proper site survey?

  1. Interviewing network users for necessary requirements of the WLAN.
  2. Measuring RF coverage in the area to be serviced by the WLAN.
  3. Providing an RF Site Survey Report.
  4. Identifying possible sources of RF signal and interference.

Answer(s): C



-Which of the following has been designated by NIST as a backup algorithm to AES?

  1. MARS
  2. RC6
  3. Twofish
  4. Serpent
  5. DES
  6. None of the above.

Answer(s): F



Which of these is the default authentication method as specified in the IEEE 802.11 standard?

  1. Open System
  2. Shared Key
  3. Dynamic Key
  4. No default authentication setting is specified in 802.11

Answer(s): A

Explanation:

Authentication.IEEE802.11 supports two subtypes of authentication services: Open System and Shared Key. The type of authentication invoked is controlled by the AuthenticationType parameter while the type of authentication that may be accepted by a STA is controlled by the security-related Management Information Base (MIB) attribute dot11AuthenticationType. Open System is a default null authentication algorithm that involves a two-step process consisting of an identity assertion and request for authentication followed by authentication result.






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