CWNP Certified wireless analusis professional(cwap) Sample Questions:

1. The 802.11 series of standards calls for use of a Traffic Indication Map (TIM) and a Delivery Traffic Indication Message (DTIM). Which of the following is true regarding the TIM and DTIM in an infrastructure BSS?

A) A DTIM period of 0 means that every TIM is a DTIM.
B) The TIM is a field in the Beacon Management frame that holds a map of every client station associated to an access point. It is used for broadcast traffic delivery.
C) The DTIM parameters are part of each Beacon's TIM Information Element, and they are used to indicate queued broadcast/multicast data to client stations using power management features in the BSS.
D) The first Beacon sent during a CFP must contain a DTIM
E) The DTIM is used in 802.11a and 802.11g Beacons whereas the TIM is used only in
802.11b Beacons. The DTIM purpose is to allow for higher rates of Beacon broadcasting and thus raise overall data rates in OFDM based systems.
F) The TIM and DTIM are both part of the Beacon management frame and are both sent in every Beacon for the purpose of announcing the modulation type and supported rate set of the access point.

2. Which of the following information elements are contained in an 802.11 Probe Request frame?

A) Capability information
B) Status code
C) SSID
D) Association ID
E) Supported rates

3. According to the IEEE 802.11 standard, what is one structural difference between a MAC Protocol Data Unit (MPDU) and a MAC Management Protocol Data Unit (MMPDU)?

A) The MPDU header always places the BSSID in the first address field, but in the MMPDU the BSSID can be found in any of the address fields.
B) The MPDU frame FCS field is 4 bytes, while the MMPDU frame FCS field is 8 bytes.
C) An MMPDU header may only contain three address fields, but an MPDU may have four address fields.
D) The MMPDU frame body is limited to 200 bytes, whereas the MPDU frame body can carry up to 2312 bytes.

4. Choose the true statements regarding wireless network discovery processes for an
802.11b network.

A) Client stations send Probe Request frames on all 802.11b channels in the 2.4 GHz ISM band in a consecutive manner until they receive at least 3 Probe Response frames.
B) Client stations send Probe Request frames on all 802.11b channels in the 2.4 GHz ISM band in a consecutive manner until they associate with an access point. After associating to an access point, they are no longer allowed to transmit Probe Request frames.
C) Client stations may continually send Probe Request frames on all 802.11b channels in the 2.4 GHz ISM band in a consecutive manner, regardless of their association state.
D) Access points send Beacon Management frames on all 802.11b channels in the 2.4 GHz ISM band in a consecutive manner including the channel for which the access point is configured.
E) Access points send Beacon Management frames only on the 802.11b channel in the 2.4 GHz ISM band for which the access point is configured.

5. In an 802.11 wireless LAN frame with either long or short preambles, the PLCP Header consists of multiple fields. Which of the following are valid PLCP Header fields?

A) SFD
B) Sync
C) Signal
D) FCS
E) MSDU

Solutions: