CWAP-405テスト難易度、CWAP-405的中問題集

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CWNP CWAP-405 Exam Syllabus Topics:

SectionWeightObjectives
Protocol Analysis Tools and Methodologies15%- WLAN analyzer architectures and placement configurations
  • 1. Configure local and remote frame capture adapters
  • 2. Analyze hardware timestamp methods to minimize processing delays
  • 3. Implement multi-channel packet aggregators
- Troubleshooting methodologies and capture safety
  • 1. Isolate protocol analyzer drop counts during heavy file transfers
  • 2. Apply disciplined network diagnostic isolation lifecycles
802.11 Frame Formats and Technologies20%- MAC sublayer encapsulation and frame structural components
  • 1. Deconstruct MAC header fields, duration IDs, and sequence controls
  • 2. Evaluate A-MPDU and A-MSDU frame aggregation structures
- Physical Layer (PHY) header mechanics and encoding structures
  • 1. Analyze PHY metrics including HE, EHT, and VHT configuration nodes
  • 2. Decode training fields, signal fields, and preamble formats
Spectrum Analysis Tools and Methodologies15%- Non-802.11 interference isolation and signature tracking
  • 1. Identify signatures of Bluetooth, microwave ovens, and analog video systems
  • 2. Analyze duty cycle measurements to evaluate active airtime constraints
- Spectrum analyzer configuration parameters and visualization layouts
  • 1. Configure sweeping rules, RBW controls, and span baselines
  • 2. Interpret real-time FFT graphs, waterfall logs, and persistence charts
WLAN Medium Access10%- Contention algorithms and wireless scheduling parameters
  • 1. Analyze DCF mechanics, carrier sensing, and backoff timers
  • 2. Evaluate EDCA parameters, access categories, and TXOP duration limits
802.11 Operation and Frame Exchanges40%- Management sublayer protocols and connectivity lifecycles
  • 1. Evaluate 802.11 power save operational states and timeline markers
  • 2. Trace authentication, association, and multi-tier roaming handshakes
  • 3. Analyze beaconing, multi-BSSID profiles, and probe exchange sequences
- Security framework verification and encryption tracking
  • 1. Trace 802.1X/EAP authentication phase transitions
  • 2. Deconstruct WPA3, SAE, and 4-way handshake key exchanges
- Control plane handshakes and transmission recovery operations
  • 1. Evaluate Block ACK session initialization and bitmap tracking loops
  • 2. Analyze RTS/CTS protection rules and standard ACK frame transmissions

>> CWAP-405テスト難易度 <<

CWAP-405的中問題集 & CWAP-405テスト内容

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CWNP Certified Wireless Analysis Professional 認定 CWAP-405 試験問題 (Q81-Q86):

質問 # 81
How many frames make up the Group Key Handshake excluding any Ack frames that may be required?

正解：C

解説：
The Group Key Handshake consists of two frames excluding any Ack frames that may be required. The Group Key Handshake is used to distribute and update the Group Temporal Key (GTK) for encrypting broadcast and multicast traffic. The AP initiates the Group Key Handshake by sending a Group Key Message
1 frame to a STA, which contains the new GTK and other information. The STA responds with a Group Key Message 2 frame to the AP, which confirms the receipt of the GTK and other information. After this, both the AP and the STA can use the new GTK for encryption and decryption of broadcast and multicast traffic .
References: CWAP-405Certified Wireless Analysis Professional Study and Reference Guide, Chapter 7:
802.11 Security, page 246; CWAP-405Certified Wireless Analysis Professional Study and Reference Guide, Chapter 7: 802.11 Security, page 247.


質問 # 82
You're the WLAN administrator for a large retailer based at the HQ in New York. The London- based office has been complaining about WLAN disconnections around lunch time each day. You suspect this might be interference from the staff microwave, how might you test your theory from the New York office?

正解：D

解説：
Placing an AP into spectrum analyzer mode allows remote monitoring of RF energy in the 2.4 GHz band during the suspected time of interference. Microwave ovens emit broadband RF interference that is clearly visible in spectrum analysis. By observing the RF activity over lunch time, you can correlate interference patterns with the reported WLAN disconnections without needing to be physically present.


質問 # 83
How many frames make up the Group Key Handshake excluding any Ack frames that may be required?

正解：C

解説：
The Group Key Handshake consists of two EAPOL-Key frames exchanged between the AP and the client. The AP sends a message containing the new Group Temporal Key, and the client responds with a confirmation message indicating successful installation of the key.


質問 # 84
To what does the channel number displayed in the radio tap header refer?

正解：A

解説：
The channel number shown in the radio tap header reflects the channel setting of the capture adapter at the time the frame was received. It indicates where the analyzer was listening, not necessarily the channel declared in the PHY header or used by the transmitting AP.


質問 # 85
Finish the statement:
It is possible to distinguish between _______ 22 MHz transmissions and ______ 20 MHz transmissions when looking at an FFT plot.

正解：D

解説：
HR/DSSS transmissions (such as 802.11b) occupy approximately 22 MHz of spectrum, while ERP (802.11g) OFDM transmissions occupy 20 MHz. On an FFT plot, this difference in occupied bandwidth allows you to visually distinguish the wider 22 MHz DSSS signal from the narrower 20 MHz OFDM signal.


質問 # 86
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