Free CWAP-403 Exam Braindumps

Given: The Frame Check Sequence (FCS) is a 32 CRC used for error detection. The CRC is calculated over what?

1. A. Frame Body only
2. B. Mac Header and Frame Body only
3. C. PHY Header, MAC Header and Frame Body
4. D. PHY Header and MAC Header only

Correct Answer: B

What is the difference between a Data frame and a QoS-Data frame?

1. A. QoS Data frames include a QoS control field
2. B. QoS Data frames include a QoS information element
3. C. QoS Data frames include a DSCP control field
4. D. QoS Data frames include an 802.1Q VLAN tag

Correct Answer: A

Finish the statement. It is possible to distinguish between _____ and _______ 20 MHz transmissions when looking at an FFT plot.

1. A. HR/DSSS and ERP
2. B. ERP and VHT
3. C. HT and VHT
4. D. OFDM and HT

Correct Answer: C

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?

1. 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.
2. B. 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.
3. C. The STA is transmitting data using more spatial streams than the potable analyzer can support
4. D. The portable analyzer is too close to the AP causing CCI, blinding the AP to the client’s packets

Correct Answer: B

Protocol analyzers may present field values in either binary, decimal or hexadecimal. What precedes a hexadecimal value to indicate it is hexadecimal?

1. A. 0x
2. B. %
3. C. HEX
4. D. 16x

Correct Answer: A