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CWNP CWAP-405 Exam Syllabus Topics:

Section	Objectives
WLAN Protocol Analysis	- MAC Layer Operations and Behaviors - Frame Types and Exchanges (Management, Control, Data) - 802.11 Frame Structure and Fields
RF and PHY Layer Analysis	- 802.11 PHY Standards Overview - Channelization and Spectrum Usage - RF Propagation and Signal Behavior
Spectrum Analysis and Tools	- Wireshark and Packet Capture Analysis - Interference Identification (Wi-Fi and Non-Wi-Fi) - Spectrum Analyzer Usage
Wireless Troubleshooting and Performance Analysis	- Identifying WLAN Performance Issues - Common WLAN Failure Scenarios - Throughput and Latency Analysis

>> CWAP-405 Latest Test Practice <<

CWAP-405 Latest Test Practice | Professional CWNP CWAP-405: Certified Wireless Analysis Professional

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CWNP Certified Wireless Analysis Professional Sample Questions (Q119-Q124):

NEW QUESTION # 119
You are using a protocol analyzer to troubleshoot a network and you notice a client frequently sending QoS Null Function frames. What do you conclude?

A. This is normal behavior; these frames are part of the WMM implementation to ensure Quality or Service and are called announcement frames
B. This is normal behavior, these frames are part of the sounding exchanging used for Transmit Beamforming and are called PS-Poll frames
C. This is not normal behavior; the client is misbehaving and consuming valuable airtime
D. This is normal behavior, these frames are used to flip the Power Management bit in the Frame Control field and are called trigger frames

Answer: D

Explanation:
QoS Null Function frames are used by a client to indicate a change in its Power Management status without carrying data. They are normal in WMM Power Save operations, allowing the client to enter or exit power-save mode efficiently.

NEW QUESTION # 120
How is the length of an AIFS calculated?

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

Answer: A

Explanation:
The Arbitration Interframe Space (AIFS) is calculated as the Short Interframe Space plus a number of slot times determined by the AIFSN value. The formula is SIFS plus AIFSN multiplied by the slot time, which defines the waiting period before a station may begin contention for the medium under EDCA.

NEW QUESTION # 121
You are working in an organization that has implemented an SCA-based WLAN. You want to change the RF channel for a single AP.
What can you do to perform this task with some SCA solutions?

A. Access the AP through the console port and change the channel
B. Access the AP using Telnet and change the channel
C. Convert the network to MCA
D. Access the AP using SSH and change the channel

Answer: C

NEW QUESTION # 122
What is an AIFS?

A. The shortest period of time a STA can sleep
B. A variable Interframe Space introduced by 802.lie to help prioritize medium access for different Access Categories
C. A form of aggregation performed at the PHY layer based on 802.lie UP values interpreted from DSCP values
D. A medium access method introduced by 802.lln, but never implemented

Answer: B

Explanation:
An AIFS is a variable interframe space introduced by 802.11e to help prioritize medium access for different Access Categories (ACs). An interframe space is a period of time that a STA (station) has to wait before attempting to access the medium. An AIFS is a type of interframe space that varies depending on the AC of the traffic. An AC is a logical queue that corresponds to a QoS (Quality of Service) level for different types of traffic. There are four ACs defined by 802.11e: AC_VO (Voice), AC_VI (Video), AC_BE (Best Effort), and AC_BK (Background). Each AC has a different AIFSN (Arbitration Interframe Space Number) value, which determines how long it has to wait before attempting to access the medium. A lower AIFSN value means a higher priority and a shorter waiting time. The other options are not correct, as they do not describe what an AIFS is. An AIFS is not a medium access method introduced by 802.11n, but never implemented, as it is part of the 802.11e standard and widely used in QoS-enabled WLANs. An AIFS is not a form of aggregation performed at the PHY layer based on 802.11e UP values interpreted from DSCP values, as aggregation is a technique that combines multiple frames into one larger frame to improve efficiency and throughput, not prioritization or medium access. An AIFS is not the shortest period of time a STA can sleep, as sleeping is a power saving mode that allows a STA to conserve battery power by periodically turning off its radio, not accessing the medium. References: [Wireless Analysis Professional Study Guide CWAP-405], Chapter 7:
QoS Analysis, page 194-195

NEW QUESTION # 123
To effect Preauthentication, a STA's supplicant sends an IEEE 802.1X/EAPoL Start message.
How is the EAPoL Start message addressed?

A. DA = MAC of default gateway; RA = BSSID of the AP to which the STA is associated
B. DA = BSSID of the targeted AP; RA = Ethernet MAC of the targeted AP
C. DA = MAC of the default gateway; RA = Ethernet MAC of the targeted AP
D. DA = BSSID of targeted AP; RA = BSSID of the AP to which the STA is associated

Answer: D

NEW QUESTION # 124
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