CWNP Certified wireless analusis professional(cwap) Sample Questions:

1. XYZ Company is using a single 802.11g access point in their New York branch office.
There are ten 802.11g wireless client stations currently on the network, each used by XYZ full-time employees. XYZ has hired a consultant to work on some accounting problems, and he is using an 802.11b radio card in his laptop. How might this affect XYZ wireless LAN throughput?

A) There will be no affect on the wireless LAN throughput capacity since the access point talks to each station at the highest rate at which the station is capable of transmitting.
B) The network throughput capacity will remain unchanged, but the 802.11b client station will slow access down for the 802.11g stations.
C) The network throughput capacity will greatly decreased due to mandatory use of DSSS- OFDM modulation.
D) The network throughput capacity will be greatly decreased, and each 802.11g client station must begin using 20 us slot times.
E) The network throughput capacity will decrease slightly since the only change will be that the 802.11b client station will transmit at 11 Mbps instead of 54 Mbps.

2. A process called preauthentication is specified by the 802.11 standard. Preauthentication is implemented by many vendors, and involves a client station performing what tasks?

A) Reauthenticating with an Extended Service Set in approximately half of the time required by the association.
B) Authenticating with an Independent Basic Service Set and an Extended Service Set simultaneously.
C) Authenticating to additional Basic Service Sets while maintaining an association to only one access point at a time.
D) Associating to multiple Basic Service Sets simultaneously.
E) Reassociating to the Extended Service Set through another access point just before it drops its connection with the existing access point.

3. As a wireless LAN consultant, you have been contacted by one of your customers to go to their premises to troubleshoot a problem with a single wireless client station (Station-Z).
Your customer informs you that other wireless client stations are not having problems with wireless connectivity, and that Station-Z is configured in the same manner as all other wireless client stations on the network. Station-Z is showing an unusually high retransmission count in its client utilities. Using a wireless protocol analyzer, where and how would you begin troubleshooting this problem?

A) Position the analyzer near Station-Z. Analyze the frames Station-Z is receiving, looking for corrupted frames.
B) Position the analyzer near the access point. See if Station-Z frames are reaching the access point and if so, analyze their signal strength.
C) Position the analyzer near Station-Z. Analyze Station-Z transmissions and acknowledgements. Look for RF and obstacle-induced interference.
D) Position the analyzer half way between Station-Z and the access point. Analyze the data rate at which frames are sent and how long they take to be received.
E) Position the analyzer half way between Station-Z and the access point. Analyze the distance between Station-Z and the access point.

4. Which of the following descriptions accurately describes IEEE 802.11 compliant Power Save mode operation in a DCF Basic Service Set?

A) Following a period of time in a low power state, client stations wake themselves and automatically poll the access point for traffic using a PS-Poll frame.
B) After waking from a low power state, client stations listen for the next beacon to determine if sending a PS-Poll frame to the access point is necessary.
C) When the access point's buffer is full, the access point wakes all client stations using a PS-Poll frame so that they can receive the data.
D) After waking at a schedule TBTT, client stations automatically send Null Function frames to the access point with the Power Management bit cleared.
E) Upon receiving traffic for a dozing station, the access point wakes the client station using a PS-Poll frame so that the client station can receive the data.

5. In compliance with the 802.11g standard, access points may provide which services to increase overall network performance in an OFDM-only environment?

A) Arbitrary Beacon Spacing
B) Fast Sleep Recovery
C) Short Slot Time
D) Short PLCP Preamble support
E) Downstream QoS

Solutions: