CWNP PW0-100 Wireless LAN Administration, Certified Wireless Network Administrator (CWNA) PW0-100 Dumps in PDF

Free CWNP PW0-100 Real Questions (page: 39)

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.



Which of the following tasks must be included in a
long-distance RF Path Survey?

  1. Determine the antenna location coordinates.
  2. Documenting seasonal changes in the environment.
  3. Determine all current and future path obstructions.
  4. Whether the link is over water or land.

Answer(s): C



The following statement: "When using high quality cables and connectors in a wireless LAN, the signal strength will not degrade", is:

  1. Always true
  2. Always false
  3. Depends on the lengths of cable.
  4. Depends on the type of adapter.

Answer(s): B

Explanation:

No matter how high the quality of the connectors and cable you are using there will always be some degradation or attenuation.
Connectors drop about .25dB
See CWNA Official Study Guide, 3rd Edition, Page 160



What type of modulation does 2Mbps DSSS use?

  1. GFSK
  2. BPSK
  3. QPSK
  4. CCK

Answer(s): C

Explanation:



Modulation Type: DQPSK uses 2 Mbps DSSS.



Wireless stations communicating without the use of an access point are known collectively as:

  1. Client mode
  2. Client Peer mode
  3. Infrastructure mode
  4. Basic Service Set
  5. Independent Basic Service Set

Answer(s): E

Explanation:

Independent Basic Service Set Identifier (IBSSID) - A special case of SSID used to identify a network of wireless computers configured to communicate directly with one another without using an access point.



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