Free CWNP CWAP-403 Exam Dumps Questions & Answers

ABC International has installed a new smart ZigBee controlled lighting system. However, the network team is concerned that this new system will interface with the existing WLAN and has asked you to investigate the impact of the two systems operating simultaneously in the 2.4 GHz band. When performing Spectrum Analysis, which question could you answer by looking at the FFT plot?

• A.Is the WLAN corrupting ZigBee system messages?
• B.Do the ZigBee channels used by the lightning system overlap with the WLAN channels?
• C.Is the ZigBee system using more the 50% of the available airtime?
• D.Is the ZigBee system causing an increase in WLAN retries?

Which one of the following is not a valid reason for an AP to fail a STAs association?

• A.Requesting station has the wrong PSK
• B.AP is unable to handle additional associations
• C.Does not support the specified authentication algorithm
• D.Requesting station does not support all the required data rates

How is the length of an AIFS is calculated?

• A.AIFSN * Slot Time + SIFS
• B.SIFS * Slot Time + AIFSN
• C.DIFS + SIFS + AIFSN
• D.SIFS + AIFS * Time Unit

Using a portable analyzer you perform a packet capture next to a client STA and you can see that the STA is associated to a BSS. You observe the STA sending packets to the AP and the AP sending packets to the STA.
Less the 2% of all packets are retransmissions. You move to capture packets by the AP and, while the retry rate is still very low, you now only see unidirectional traffic from the AP to the client. How do you explain this behavior?

• A.There is a transmit power mismatch between the client and the AP and while the client can hear the Aps traffic, the AP cannot hear the client.
• B.The portable analyzer is too close to the AP causing CCI, blinding the AP to the client's packets
• C.The portable analyzer has a lower receive sensitivity than the AP and while it can't capture the packets from the client STA, the AP can receive them OK.
• D.The STA is transmitting data using more spatial streams than the potable analyzer can support

A PHY Header is added to the PSDU at which sub-layer?

• A.PMD
• B.MAC
• C.LLC
• D.PLCP