Verified CWNP CWAP-403 Dumps Questions Online

NEW QUESTION 1
What is the function of the PHY Preamble?

• A. To set the modulation method for the MPDU
• B. Allows the receiver to detect and synchronize with the signal
• C. To terminate a conversation between transmitter and receiver
• D. Carries the NDP used in Transmit Beamforming and MU-MIMO

Answer: B

NEW QUESTION 2
What is the formula used to calculate the Duration field value in an RTS frame?

• A. RTS Duration field = CTS duration
• B. RTS Duration field = Data or management to be sent frame duration
• C. RTS Duration field = Data or management frame to be sent duration + CTS duration + one ACK duration + three SIFS
• D. RTS Duration field = Data or management frame to be sent duration + CTS duration

Answer: C

NEW QUESTION 3
You are performing a multiple adapter channel aggregation capture to troubleshoot a VoIP roaming problem and would like to measure the roaming time from the last VoIP packet sent on the old AP’s channel to the first VoIP packet sent on the new AP’s channel. Which timing column in the packet view would measure this for you?

• A. Delta
• B. Absolute
• C. Roaming
• D. Relative

Answer: C

NEW QUESTION 4
A client is operating in an unstable RF environment. Out of five data frames transmitted to the client it only receives four. The client sends a Block Ack to acknowledge the receipt of these four frames but due to frame corruption the Block Ack is not received by the AP. Which frames will be transmitted?

• A. Only the data frame which was corrupted
• B. Both the corrupted data and Block Ack
• C. All data frames
• D. Only the Block Ack

Answer: D

NEW QUESTION 5
Which one of the following is not a valid acknowledgment frame?

• A. RTS
• B. CTS
• C. Ack
• D. Block Ack

Answer: C

NEW QUESTION 6
What Interframe space would be expected between a CTS and a Data frame?

• A. SIFS
• B. DIFS
• C. AIFS
• D. PIFS

Answer: A

NEW QUESTION 7
The network administrator at ABC Engineering has taken a large packet capture from one of their APs running in monitor mode. She has very little knowledge of 802.11 protocols but would like to use the capture file to evaluate the overall health and performance of their wireless network. When she asks your advice, which tool do you recommend she opens the packet capture file with?

• A. Capture visualization tool
• B. Protocol analyzer
• C. Spectrum analyzer
• D. WLAN scanner

Answer: B

NEW QUESTION 8
Which one of the following is not an 802.11 Management frame?

• A. Action
• B. Authentication
• C. PS-Poll
• D. Beacon

Answer: C

NEW QUESTION 9
You have installed a new 802.11ac WLAN configured with 80 MHz channels. Users in one area are complaining about poor performance. This area is currently served by a single AP. You take a spectrum analysis capture in the poor performing areA. While examining the waterfall plot you notice the airtime
utilization is higher on the first 20 MHz of the 80 MHz channel when compared to the rest of the channel. What do you conclude?

• A. The AP is misconfigured and needs to be reconfigured to 80MHz operation
• B. RRM is enabled and has dynamically picked a 20 MHz channel
• C. The first 20 MHz is the AP’s primary channel and higher airtime utilization on the primary channel is normal when an AP Is configured for 80 MHz operation
• D. Non Wi-Fi interference is preventing the APs 80 MHz operation

Answer: C

NEW QUESTION 10
Why would a STA that supports 802.11k Radio Measurement send a Neighbor Request to an AP?

• A. To learn about neighboring interference sources and tune its RF radio accordingly
• B. To inform the current AP about the STA’s intent to roam to a neighboring AP, ensuring a seamless handover
• C. To request a list of neighboring APs which the STA can use as roaming candidates
• D. To request a list of neighboring STAs which enables the STA to better pick the right protection mechanisms

Answer: C

NEW QUESTION 11
You are analyzing a packet decode of a Probe Request and notice the SSID element has a length of zero. What do you conclude about transmitting STA?

• A. The WLAN adaptor is configured in promiscuous mode
• B. The STA is operating in Ad-Hoc mode
• C. The STA’s WLAN adaptor is disabled
• D. The STA is discovering a list of available BSSs

Answer: B

NEW QUESTION 12
What is encrypted within the fourth frame of the 4-Way Handshake?

• A. PMK
• B. PTK
• C. GMK
• D. GTK

Answer: D

NEW QUESTION 13
Which piece of information Is not transmitted in an HT PDDU header?

• A. Number of Spatial Streams
• B. PPDU length
• C. Channel number
• D. MCS index

Answer: D

NEW QUESTION 14
Which one of the following statements describes the function of WMM Admission Control?

• A. APs guarantee Voice and Video access categories priority over the WLAN medium
• B. APs control access to the wireless medium by polling STAs for data packets
• C. APs regulate the available bandwidth in an attempt to provide a guarantee of the amount of time that a STA has available to access the channel
• D. Provides a new 802.11 Authentication method for Voice devices

Answer: A

NEW QUESTION 15
In which element of a Beacon frame would you look to identify the current HT protection mode in which an AP is operating?

• A. HT Capabilities Element
• B. HT Protection Element
• C. HT Information Element
• D. HT Operations Element

Answer: C

NEW QUESTION 16
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. Does not support the specified authentication algorithm
• C. AP is unable to handle additional associations
• D. Requesting station does not support all the required data rates

Answer: A

NEW QUESTION 17
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 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.
• C. The STA is transmitting data using more spatial streams than the potable analyzer can support
• D. The portable analyzer is too close to the AP causing CCI, blinding the AP to the client’s packets

Answer: B

NEW QUESTION 18
When performing protocol analysis, you capture an 802.11ac data frame on channel 52, transmitted at MSC 8. At what data rate was the PHY Preamble transmitted?

• A. 54 Mbps
• B. 6 Mbps
• C. 86.7 Mbps
• D. 78 Mbps

Answer: B

Explanation:
The transmitter sends the preamble at 1 Mbps (802.11 or 802.11b DSSS) or 6 Mbps (802.11a or 802.11g ERP-OFDM).

NEW QUESTION 19
Given: The Frame Check Sequence (FCS) is a 32 CRC used for error detection. The CRC is calculated over what?

• A. Frame Body only
• B. Mac Header and Frame Body only
• C. PHY Header, MAC Header and Frame Body
• D. PHY Header and MAC Header only

Answer: B

NEW QUESTION 20
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. Do the ZigBee channels used by the lightning system overlap with the WLAN channels?
• B. Is the ZigBee system using more the 50% of the available airtime?
• C. Is the ZigBee system causing an increase in WLAN retries?
• D. Is the WLAN corrupting ZigBee system messages?

Answer: C

NEW QUESTION 21
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