100% Pass Quiz 2025 CWNP CWAP-404: Efficient Study Certified Wireless Analysis Professional Test

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CWNP CWAP-404 Exam Topics:

Section	Objectives
Protocol Analysis - 15%
Capture 802.11 frames using the appropriate methods	- Select capture devices Laptop protocol analyzers APs, controllers, and other management solutions Specialty devices (hand-held analyzers and custom-built devices) - Install monitor mode drivers - Select capture location(s) - Capture sufficient data for analysis - Capture all channels or capture on a single channel as needed - Capture roaming events
Understand and apply the common capture configuration parameters available in protocol analysis tools	- Save to disk - Packet slicing - Event triggers - Buffer options - Channels and channel widths - Capture filters - Channel scanning and dwell time
Analyze 802.11 frame captures to discover problems and find solutions	- Use appropriate display filters to view relevant frames and packets - Use colorization to highlight important frames and packets - Configure and display columns for analysis purposes - View frame and packet decodes while understanding the information shown and applying it to the analysis process - Use multiple adapters and channel aggregation to view captures from multiple channels - Implement protocol analyzer decryption procedures - View and use a capture’s statistical information for analysis - Use expert mode for analysis - View and understand peer maps as they relate to communications analysis
Utilize additional tools that capture 802.11 frames for analysis and troubleshooting	- WLAN scanners and discovery tools - Protocol capture visualization and analysis tools - Centralized monitoring, alerting, and forensic tools
Ensure appropriate troubleshooting methods are used with all analysis types	- Define the problem - Determine the scale of the problem - Identify probable causes - Capture and analyze the data - Observe the problem - Choose appropriate remediation steps - Document the problem and resolution
Spectrum Analysis - 10%
Capture RF spectrum data and understand the common views available in spectrum analyzers	- Install, configure, and use spectrum analysis software and hardware - Capture RF spectrum data using handheld, laptop-based, and infrastructure spectrum capture solutions - Understand and use spectrum analyzer views Real-time FFT Waterfall, swept spectrogram, density, and historic views Utilization and duty cycle Detected devices WLAN integration views
Analyze spectrum captures to identify relevant RF information and issues	- RF noise floor in an environment - Signal-to-Noise Ratio (SNR) for a given signal - Sources of RF interference and their locations - RF channel utilization - Non-Wi-Fi transmitters and their impact on WLAN communications - Overlapping and non-overlapping adjacent channel interference - Poor performing or faulty radios
Analyze spectrum captures to identify various device signatures	- Identify various 802.11 PHYs DSSS OFDM OFDMA Channel widths Primary channel - Identify non-802.11 devices based on RF behaviors and signatures Frequency hopping devices IoT devices Microwave ovens Video devices RF Jammers Cordless phones
Use centralized spectrum analysis solutions	- AP-based spectrum analysis - Sensor-based spectrum analysis
PHY Layers and Technologies - 10%
Understand and describe the functions of the PHY layer and the PHY protocol data units (PPDUs)	- DSSS (Direct Sequence Spread Spectrum) - HR/DSSS (High Rate/Direct Sequence Spread Spectrum) - OFDM (Orthogonal Frequency Division Multiplexing) - ERP (Extended Rate PHY) - HT (High Throughput) - VHT (Very High Throughput) - HE (High Efficiency) HE SU PPDU HE MU PPDU HE ER SU PPDU HE TB PPDU HE NULL data packets
Apply the understanding of PHY technologies, including PHY headers, preambles, training fields, frame aggregation, and data rates, to captured data
Identify and use PHY information provided within pseudo-headers in protocol analyzers	- Pseudo-Header formats Radiotap Per Packet Information (PPI) - Key pseudo-header content Guard intervals Resource units allocation PPDU formats Signal strength Noise Data rate and MCS index Length information Channel center frequency or received channel Channel properties
Recognize the limits of protocol analyzers to capture PHY information including NULL data packets and PHY headers
Use appropriate capture devices based on proper understanding of PHY types	- Supported PHYs - Supported spatial streams
MAC Sublayer and Functions - 25%
Understand frame encapsulation and frame aggregation	- Frame aggregation (A-MSDU and A-MPDU)
Identify and use MAC information in captured data for analysis	- Management, Control, and Data frames - MAC frame formats and contents Frame Control field To DS and From DS fields Address fields Frame Check Sequence (FCS) field - 802.11 Management frame formats Information Elements Authentication Association and Reassociation Beacon Prove Request and Probe Response - Data and QoS Data frame formats - 802.11 Control frame formats Acknowledgement (ACK) Request to Send/Clear to Send (RTS/CTS) Block Acknowledgement and related frames Trigger frames VHT/HE NDP announcements Multiuser RTS
Validate BSS configuration through protocol analysis	- Country code - Minimum basic rate - Supported rates and coding schemes - Beacon interval - WMM settings - RSN settings - HT/VHT/HE operations - Channel width - Primary channel - Hidden or non-broadcast SSIDs
Identify and analyze CRC error frames and retransmitted frames
WLAN Medium Access - 10%

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CWNP Certified Wireless Analysis Professional Sample Questions (Q152-Q157):

NEW QUESTION # 152
You have captured 802.11 traffic using an adapter that includes the radio tap header. You see several frames often called announcement frames in the capture.
What best describes these types of frames?

A. They are used to allow a STA to awake from sleep and for no other reason
B. They only include beacon and probe response frames
C. They are meant to provide information to the network that may result in state changes, but they are not open for rejection
D. They only include beacon and probe request frames

Answer: B

NEW QUESTION # 153
In the analyzer trace shown, the TBTT is nominally 102.5 milliseconds.

Why does the Beacon transmission interval vary?

A. The DCF Interframe space (DIFS) is nominally 50 µs, but typically varies by as much as 10 µs, which causes delays in Beacons.
B. This trace shows an HT network where HR/DSSS nodes are active on the network. The access point is changing slot times from short to long as needed.
C. The access point must arbitrate to gain access to the RF medium in order to transmit a Beacon.
D. Beacon frames vary in size, and therefore some take slightly longer to send than others.

Answer: C

NEW QUESTION # 154
iPerf is a tool used in what category of testing?

A. Throughput
B. Configuration
C. Name resolution
D. Connection

Answer: A

NEW QUESTION # 155
You are creating a baseline configuration for a pool of 100 laptops related to Wi-Fi.
The laptops have dual- band 802.11ac adapters. They are configured for aggressive roaming.
What additional setting might you configure to ensure they access the WLAN on the channels with the least interference assuming the enterprise WLAN is well-designed?

A. Band preference
B. USB speed
C. Power management
D. 802.11h

Answer: A

NEW QUESTION # 156
A manager at a retail outlet has complained that an incident occurred allowing a STA to launch an attack against another STA connected to their public Wi-Fi hotspot. He has asked you to troubleshoot the situation and verify that all possible measured are being taken to prevent this.
What configuration should you check in the AP?

A. Captive portal Internet gateway
B. Client-to-client direct communications
C. DNS settings
D. Inter-VAP filtering

Answer: D

NEW QUESTION # 157
......

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100% Pass Quiz 2025 CWNP CWAP-404: Efficient Study Certified Wireless Analysis Professional Test

CWNP CWAP-404 Exam Topics:

Protocol Analysis - 15%

Spectrum Analysis - 10%

PHY Layers and Technologies - 10%

MAC Sublayer and Functions - 25%

WLAN Medium Access - 10%

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CWNP Certified Wireless Analysis Professional Sample Questions (Q152-Q157):

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