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Free CWNP PW0-100 Exam Braindumps (page: 3)

Page 3 of 77
PDF with 477 Questions

The "hidden node" problem can be caused by?

  1. Interfering obstacles between clients.
  2. Clients broadcasting with too much power.
  3. Access points broadcasting with too little power.
  4. Clients being too close together.

Answer(s): A

Explanation:

Hidden node is a problem where two nodes can connect to an access point but they cannot connect to each other due to some obstacles or a large amount of distance between them.
(CWNA Study Guide, p. 272)



Antenna Diversity compensates for which of these common
wireless LAN problems?

  1. Near/Far
  2. Hidden Node
  3. Multipath
  4. Adjacent Channel Interference

Answer(s): C

Explanation:

In order to troubleshooting multipath successfully, antenna diversity is needed to compensate the certain conditions. (CWNA Study Guide, p. 270)



Which authentication, authorization, and accounting (AAA) support options does the 802.11 standard specify?

  1. RADIUS
  2. LDAP
  3. TACACS+
  4. None of the above

Answer(s): D

Explanation:

802.11i (not 802.11) standard supports AAA.



To achieve 54 Mbps, 802.11a uses which type of data
modulation?

  1. QFSK
  2. BPSK
  3. 64QAM
  4. CCK

Answer(s): C

Explanation:

On page 221 of the CWNA study Guide (2nd edition) it is mentioned that the 802.11a standard specifies the use of the ODFM technology. ODFM is the secret behind how 802.11a gets up to 54 Mbps data rates. In the answers given ODFM is not mentioned so this is something to think about.



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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