Prepare For CWNP CWAP-404 Certification Exam

Our Certified Wireless Analysis Professional (CWAP-404) practice exam can be modified in terms of length of time and number of questions to help you prepare for the CWNP real test. We're certain that our CWAP-404 Questions are quite similar to those on CWAP-404 real exam since we regularly update and refine the product based on the latest exam content.

CWNP CWAP-404 Exam Syllabus Topics:

Topic	Details
Topic 1	Frame Exchanges: The topic evaluates the skills of a wireless network professional in capturing, understanding, and analyzing various frame exchanges, including BSS discovery, joining, roaming, and data frames. The CWAP-404 exam targets the ability of candidates to troubleshoot and resolve issues related to MAC layer operations, ensuring they can maintain robust and efficient WLAN communications.
Topic 2	WLAN Medium Access: The exam evaluates the understanding of a wireless network professional about 802.11 contention algorithms and their impact on WLAN performance. The CWAP-404 Exam requires candidates to analyze QoS configurations and operations.
Topic 3	Spectrum Analysis: The topic assesses the ability of a wireless network professional to capture and interpret RF spectrum data. The exam targets the skills in identifying device signatures and RF issues through spectrum analyzers.

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CWAP-404 - Certified Wireless Analysis Professional –The Best Reliable Exam Registration

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CWNP CWAP-404 Exam Certification Details:

Sample Questions	CWNP CWAP-404 Sample Questions
Exam Name	Wireless Analysis Professional
Duration	90 minutes
Exam Price	$275 USD
Number of Questions	60

CWNP Certified Wireless Analysis Professional Sample Questions (Q161-Q166):

NEW QUESTION # 161
What is encrypted within the fourth frame of the 4-Way Handshake?

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

Answer: D

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, as they 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.

NEW QUESTION # 162
Given: There are many differences between analyzing wireless and wired networks. In a wireless network, there is no guarantee that one station can hear another station's transmissions.
If no corrective actions are taken nor corrective mechanisms implemented when a "hidden node" problem exists, which measurable statistics parameter will likely increase in a wireless protocol analyzer?

A. ACK Timeout
B. BlockAck Reset
C. Retransmission Count
D. Contention Window
E. Duration value
F. Authentication Failure

Answer: C

NEW QUESTION # 163
The network administrator at ABC Engineering has taken a large packet capture from one of their APs running in monitor mode. She has very little knowledge of 802.11 protocols but would like to use the capture file to evaluate the overall health and performance of their wireless network.
When she asks your advice, which tool do you recommend she opens the packet capture file with?

A. WLAN scanner
B. Capture visualization tool
C. Spectrum analyzer
D. Python

Answer: B

Explanation:
A capture visualization tool is a software application that can open a packet capture file and display various graphs, charts, tables, and statistics that illustrate the characteristics and behavior of the wireless network. A capture visualization tool can help a network administrator with little knowledge of 802.11 protocols to evaluate the overall health and performance of their wireless network by providing a visual and intuitive representation of the captured data. A spectrum analyzer is a hardware device that measures the radio frequency signals in a given frequency range and displays their amplitude, frequency, and modulation. A spectrum analyzer can help identify sources of interference and noise in the wireless environment, but it cannot open a packet capture file. Python is a programming language that can be used to write scripts or applications that manipulate or analyze packet capture files, but it requires coding skills and knowledge of
802.11 protocols. A WLAN scanner is a software application that scans for available wireless networks and displays information such as SSID, BSSID, channel, signal strength, security type, and vendor. A WLAN scanner can help discover wireless networks and their basic parameters, but it cannot open a packet capture file.

NEW QUESTION # 164
Prior to a retransmission what happens to the CWmax value?

A. Increases by 1
B. Doubles and increases by 1
C. Set to the value of the AIFSN
D. Reset to 0

Answer: B

Explanation:
Before a retransmission, the CWmax (Contention Window maximum) value doubles and increases by 1. The CWmax is a parameter that determines the upper limit of the random backoff time that a STA (station) has to wait before attempting to access the medium. The random backoff time is chosen from a range of values between CWmin (Contention Window minimum) and CWmax. The CWmin and CWmax values depend on the AC (Access Category) of the traffic and the PHY type of the STA. If a transmission fails due to a collision or an error, the STA has to retransmit the frame after waiting for another random backoff time. However, to reduce the probability of another collision, the STA increases its CWmax value by doubling it and adding 1.
This increases the range of possible backoff values and spreads out the STAs more evenly. The STA resets its CWmax value to its original value after a successful transmission or after reaching a predefined limit.

NEW QUESTION # 165
What HT PPDU format is shown in the exhibit?

A. Non-HT format
B. Dual Training Field format
C. HT-mixed format
D. ERP-OFDM format
E. HT-greenfield format
F. Non-HT duplicate format

Answer: C

NEW QUESTION # 166
......

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Prepare For CWNP CWAP-404 Certification Exam

CWNP CWAP-404 Exam Syllabus Topics:

CWAP-404 - Certified Wireless Analysis Professional –The Best Reliable Exam Registration

CWNP CWAP-404 Exam Certification Details:

CWNP Certified Wireless Analysis Professional Sample Questions (Q161-Q166):

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