DETAILED CWNP CWAP-404 ANSWERS - CWAP-404 RELIABLE EXAM ANSWERS

Detailed CWNP CWAP-404 Answers - CWAP-404 Reliable Exam Answers

Detailed CWNP CWAP-404 Answers - CWAP-404 Reliable Exam Answers

Blog Article

Tags: Detailed CWAP-404 Answers, CWAP-404 Reliable Exam Answers, CWAP-404 Exam Discount Voucher, Reliable CWAP-404 Learning Materials, New CWAP-404 Test Book

What's more, part of that Lead2Passed CWAP-404 dumps now are free: https://drive.google.com/open?id=1VKMfMoGcy0sUYjyMuWqwAgcXzAov680e

Professional certification can not only improve staff's technical level but also enhance enterprise's competition. Valid CWNP CWAP-404 latest exam cram pdf will be necessary for every candidate since it can point out key knowledge and most of the real test question. CWAP-404 Latest Exam Cram pdf provides you the simplest way to clear exam with little cost.

CWNP CWAP-404 practice questions are based on recently released CWNP CWAP-404 exam objectives. Includes a user-friendly interface allowing you to take the Certified Wireless Analysis Professional practice exam on your computers, like downloading the PDF, Web-Based CWAP-404 Practice Test Lead2Passed, and Desktop CWNP CWAP-404 practice exam Lead2Passed.

>> Detailed CWNP CWAP-404 Answers <<

Up-To-Date And Verified CWNP CWAP-404 Exam Questions For Preparation

Why our CWAP-404 exam questions are the most populare in this field? On the one hand, according to the statistics from the feedback of all of our customers, the pass rate among our customers who prepared for the CWAP-404 exam with the help of our CWAP-404 guide torrent has reached as high as 98%to 100%. On the other hand, the simulation test is available in our software version of our CWAP-404 Exam Questions, which is useful for you to get accustomed to the CWAP-404 exam atmosphere. Please believe us that our CWAP-404 torrent question is the best choice for you.

CWNP CWAP-404 Exam Topics:

SectionObjectives

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%


CWNP Certified Wireless Analysis Professional Sample Questions (Q11-Q16):

NEW QUESTION # 11
What is the difference between a Data frame and a QoS-Data frame?

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

Answer: D

Explanation:
The difference between a Data frame and a QoS-Data frame is that QoS Data frames include a QoS control field. A Data frame is a type of data frame that is used to carry user data or upper layer protocol data between STAs and APs. A QoS Data frame is a type of data frame that is used to carry user data or upper layer protocol data between STAs and APs that support QoS (Quality of Service) features. QoS features allow different types of traffic to be prioritized and handled differently according to their QoS requirements, such as delay, jitter, throughput, etc.
QoS Data frames include a QoS control field in their MAC header, which contains information such as traffic identifier (TID), queue size (TXOP), acknowledgment policy (ACK), etc., that are used for QoS purposes. The other options are not correct, as they do not describe the difference between Data and QoS Data frames.
QoS Data frames do not include a DSCP (Differentiated Services Code Point) control field, which is part of the IP header in the network layer, not the MAC header in the data link layer. QoS Data frames do not include a QoS information element (IE), which is part of some management frames that indicate QoS capabilities or parameters, not data frames. QoS Data frames do not include an
802.1Q VLAN tag, which is part of some Ethernet frames that indicate VLAN membership or priority, not wireless frames.


NEW QUESTION # 12
You are troubleshooting a client that is experiencing slow WLAN performance. As part of the troubleshooting activity, you start a packet capture on your laptop close to the client device. While analyzing the packets, you suspect that you have not captured all packets transmitted by the client. By analyzing the trace file, how can you confirm if you have missing packets?

  • A. Protocol Analyzers show the number of missing packets in their statistics view
  • B. Look for gaps in the sequence number in MAC header
  • C. The missing packets will be shown as CRC errored packets
  • D. Retransmission are an indication of missing packets

Answer: B

Explanation:
One way to confirm if you have missing packets in your packet capture is to look for gaps in the sequence number in MAC headers. The sequence number is a 12-bit field in the MAC header that is used to identify and order data frames within a traffic stream. The sequence number is incremented by one for each new data frame transmitted by a STA, except for retransmissions, fragments, and control frames. The sequence number can range from 0 to 4095, and then wraps around to 0. If you see a jump or a gap in the sequence number between two consecutive data frames from the same STA, it means that you have missed some packets in between. The other options are not correct, as they do not confirm if you have missing packets in your packet capture. CRC errored packets are packets that have been corrupted during transmission and have failed the error detection check. Protocol analyzers may show the number of CRC errored packets in their statistics view, but not the number of missing packets. Retransmissions are an indication of packet loss or collision, but not necessarily of missing packets in your capture.


NEW QUESTION # 13
You are analyzing a problem with a specific client adapter.
The vendor specifications sheet does not provide detailed information.
What tool can you use to provide the most detailed specification information in many such cases?

  • A. Spectrum analyzer
  • B. WLAN controller
  • C. FCC ID Search
  • D. Wi-Fi finder

Answer: C


NEW QUESTION # 14
You have implemented centralized, infrastructure-based spectrum analysis.
The Aps are configured to perform spectrum analysis in an ad-hoc manner and will go offline as Aps to perform this duty when needed.
What unique method of spectrum analysis monitoring is provided by this solution that is not typically available in a laptop-based analyzer?

  • A. Band selection
  • B. RBW adjustments
  • C. Web-based viewing
  • D. Real-time FFT

Answer: B


NEW QUESTION # 15
What is encrypted within the third message of the 4-Way Handshake?

  • A. PMK
  • B. PTK
  • C. GMK
  • D. GTK

Answer: D

Explanation:
Explanation
The GTK (Group Temporal Key) is encrypted within the third message of the 4-Way Handshake. The 4-Way Handshake is a process that establishes a secure connection between a STA (station) and an AP (access point) using WPA2 (Wi-Fi Protected Access 2), which is a security protocol that uses AES-CCMP (Advanced Encryption Standard-Counter Mode CBC-MAC Protocol) as its encryption algorithm. The 4-Way Handshake consists of four messages that are exchanged between the STA and the AP. The first message is sent by the AP to the STA, containing the ANonce (Authenticator Nonce), which is a random number generated by the AP.
The second message is sent by the STA to the AP, containing the SNonce (Supplicant Nonce), which is a random number generated by the STA, and the MIC (Message Integrity Code), which is a value that verifies the integrity of the message. The third message is sent by the AP to the STA, containing the GTK, which is a key that is used to encrypt and decrypt multicast and broadcast data frames, and the MIC. The GTK is encrypted with the KEK (Key Encryption Key), which is derived from the PTK (Pairwise Temporal Key). The PTK is a key that is used to encrypt and decrypt unicast data frames, and it is derived from the PMK (Pairwise Master Key), the ANonce, and the SNonce. The fourth message is sent by the STA to the AP, containing only the MIC, to confirm the completion of the 4-Way Handshake. The other options are not correct, asthey are not encrypted within the third message of the 4-Way Handshake. The PMK is a key that is derived from a passphrase or obtained from an authentication server, and it is not transmitted in any message of the 4-Way Handshake. The PTK is a key that is derived from the PMK, the ANonce, and the SNonce, and it is not transmitted in any message of the 4-Way Handshake. The GMK (Group Master Key) is a key that is generated by the AP and used to derive the GTK, and it is not transmitted in any message of the 4-Way Handshake. References: [Wireless Analysis Professional Study Guide CWAP-404], Chapter 8: Security Analysis, page 211-213


NEW QUESTION # 16
......

Different from all other bad quality practice materials that cheat you into spending much money on them, our CWAP-404 exam materials are the accumulation of professional knowledge worthy practicing and remembering. All intricate points of our CWAP-404 Study Guide will not be challenging anymore. They are harbingers of successful outcomes. And our website has already became a famous brand in the market because of our reliable CWAP-404 exam questions.

CWAP-404 Reliable Exam Answers: https://www.lead2passed.com/CWNP/CWAP-404-practice-exam-dumps.html

DOWNLOAD the newest Lead2Passed CWAP-404 PDF dumps from Cloud Storage for free: https://drive.google.com/open?id=1VKMfMoGcy0sUYjyMuWqwAgcXzAov680e

Report this page