CWNP CWAP-404 Test Dumps Free & CWAP-404 Detailed Study Dumps

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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%

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CWAP-404 Detailed Study Dumps & New Exam CWAP-404 Braindumps

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CWNP Certified Wireless Analysis Professional Sample Questions (Q87-Q92):

NEW QUESTION # 87
What should the To DS and From DS flags be to set to in an Association Response frame?

A. To DS = 1, From DS = 1
B. To DS - 0, From DS = 0
C. To DS = 0, From DS = 1
D. To DS - 1, From DS = 0

Answer: B

Explanation:
Explanation
The To DS and From DS flags should be set to 0 in an Association Response frame. An Association Response frame is a type of management frame that is transmitted by an AP to accept or reject an association request from a STA. The To DS (To Distribution System) and From DS (From Distribution System) flags are two bits in the Frame Control field of the MAC header that indicate whether a frame is destined for or originated from the DS (Distribution System), which is a system that connects multiple BSSs together. The To DS and From DS flags can have four possible combinations: 00, 01, 10, or 11. For an Association Response frame, which is sent from an AP to a STA within a BSS, both flags should be set to 0. References: [Wireless Analysis Professional Study Guide CWAP-404], Chapter 5: 802.11 MAC Sublayer, page 121-122

NEW QUESTION # 88
You are using the real-time FFT display of a spectrum analyzer. In what domain does this show the RF energy detected in the swept frequencies?

A. Phase
B. Frequency
C. Length
D. Time

Answer: A

NEW QUESTION # 89
Using the exhibit as a reference, answer the following.

STA1 sent a data frame to Mesh AP2 destined for a local file server on the same subnet with MAC address 00:11:22:33:44:55. Mesh AP2's mesh forwarding algorithm determined that the frame should be forwarded through Mesh AP1.
In the frame sent from Mesh AP2 to Mesh AP1, what is true of the contents of the MAC header?
(Choose 3)

A. TA = STA1's MAC Address
B. To DS = 0
C. SA = Mesh AP2's MAC Address
D. From DS = 1
E. RA = Mesh AP1's MAC Address
F. DA = 00:11:22:33:44:55

Answer: D,E,F

NEW QUESTION # 90
Which one of the following statements is not true concerning DTIMs?

A. The DTIM interval can dictate when an STA will wake up to listen to beacon frames
B. DTIM stands for Delivery Traffic Indication Map
C. Every Beacon frame must contain a DTIM
D. Buffered Broadcast and Multicast traffic will be transmitted following a DTIM

Answer: C

Explanation:
Every Beacon frame must contain a DTIM is not a true statement concerning DTIMs. DTIM stands for Delivery Traffic Indication Message, and it is a subfield within the TIM (Traffic Indication Map) element in a Beacon frame. The DTIM indicates how many Beacon frames (including the current one) will appear before the next DTIM. For example, if the DTIM interval is set to 3, it means that every third Beacon frame will contain a DTIM. Buffered broadcast and multicast traffic will be transmitted following a DTIM, so that STAs in power save mode can wake up and receive them. The DTIM interval can also dictate when an STA will wake up to listen to Beacon frames, as some STAs may choose to only listen to Beacon frames that contain a DTIM.

NEW QUESTION # 91
You are considering the performance of a BSS based on different PHY types used. In the BSS, one device must use ERP as it does not support HT in its 2.4 GHz band.
What is the duration of the interframe space for this ERP device for standard data frame transmissions?

A. 9 microseconds
B. 16 microseconds
C. 28 microseconds
D. 10 microseconds

Answer: C

NEW QUESTION # 92
......

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CWNP CWAP-404 TEST DUMPS FREE & CWAP-404 DETAILED STUDY DUMPS

CWNP CWAP-404 Test Dumps Free & CWAP-404 Detailed Study Dumps