Precise Cwap-402 Paper 2021

NEW QUESTION 1
You view a protocol analyzer capture decode with the following protocol frames listed in the following order (excluding the ACK frames): 1) 802.11 Probe Request and 802.11 Probe Response 2) 802.11 Auth and another 802.11 Auth 2) 802.11 Assoc Req and 802.11 Assoc Rsp 4) EAPOL-Start 5) EAP Request and EAP Response 6) EAP Request and EAP Response 7) EAP Request and EAP Response 8) EAP Request and EAP Response 9) EAP Request and EAP Response 10) EAP Success 19) EAPOL-Key (4 frames in a row)
What are you seeing in the capture file?

• A. WPA2-Personal authentication
• B. Wi-Fi Protected Setup with PIN
• C. WPA2-Enterprise authentication
• D. 802.1X with Dynamic WEP

Answer: C

NEW QUESTION 2
VoIP is used heavily in your organization. You must troubleshoot problems with dropped calls on the WLAN.
What is a common cause of dropped calls when using Wi-Fi VoIP phones?

• A. Use of WMM
• B. Data rates below 54 Mbps
• C. Data rates below 75 Mbps
• D. Slow roaming

Answer: D

NEW QUESTION 3
You are working in an organization that has implemented an SCA-based WLAN. You want to change the RF channel for a single AP.
What can you do to perform this task with some SCA solutions?

• A. Access the AP using SSH and change the channel
• B. Access the AP through the console port and change the channel
• C. Access the AP using Telnet and change the channel
• D. Convert the network to MCA

Answer: D

NEW QUESTION 4
You must report on frame types seen on the WLAN. You want to list the frame types by both name and binary value.
What frame type is represented by the binary value 011010, which includes the Type and Subtype values?

• A. Beacon
• B. PS-Poll
• C. Authentication
• D. Association Request

Answer: B

NEW QUESTION 5
When using Wireshark for protocol analysis, what filter will allow you to see only beacon frames?

• A. wlan.fc.type_subtype = =0x05
• B. wlan.fc.type_subtype = =0x0b
• C. wlan.fc.type_subtype = =0x08
• D. wlan.fc.type_subtype = =0x04

Answer: C

NEW QUESTION 6
You are responsible for troubleshooting and analysis of the WLAN in your organization that supports more than 700 client STAs. Forty APs are deployed and they are all dual-band APs and are controller-based. You must troubleshoot the wired side in some scenarios using a protocol analyzer.
Which one of the following problems would warrant wired-side analysis in most situations?

• A. High 802.11 retry rates
• B. High 802.11 CRC rates
• C. WMM QoS issues
• D. DHCP problems

Answer: C

NEW QUESTION 7
You are using a laptop-based protocol analyzer to scan all channels and determine the basic configuration of the WLAN Basic Service Set in your facility. You are scanning all channels. All configured with default settings.
What can you change to cause the scan to run faster while still APs are capturing beacon frames on all the channels?

• A. Configure the RBW to more than 120 kHz
• B. Configure the scan time for channels to 300-500 ms
• C. Configure the fragmentation threshold to 1500 bytes
• D. Configure the scan time for channels to <100 ms

Answer: A

NEW QUESTION 8
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 only include beacon and probe request frames
• B. They are used to allow a STA to awake from sleep and for no other reason
• C. They only include beacon and probe response frames
• D. They are meant to provide information to the network that may result in state changes, but they are not open for rejection

Answer: C

NEW QUESTION 9
What action is taken automatically by 802.11 APs and client STAs as the signal strength of the link weakens in order to improve the quality of the RF communications overall?

• A. Output power is increased
• B. RSSI is increased
• C. Data rates are reduced
• D. Antenna gain is increased

Answer: C

NEW QUESTION 10
You are considering disabling the data rates of 1, 2, 5.5 and 11 in the 2.4 GHz band. What advantage might this provide to the networks operating in this band?

• A. The antennas will be able to zero in on the higher data rates better
• B. The range of the PHY preamble and header will be reduced
• C. Frames that must be transmitted at the lowest common data rate can be transmitted at higher data rates after the change
• D. The RF signals will not travel as far

Answer: C

NEW QUESTION 11
You want to simplify viewing frames of a particular type in Wireshark. What is used to specify frames for colorization?

• A. Custom code must be written and the binaries recompiled
• B. Automated protocol analysis is used and no additional options may be specified
• C. Filters are used to define the frames that should be colorized
• D. A scripting language is available to modify the code before recompilation

Answer: C

Explanation:
Protocol analyzers also support highlighting or colorization and filtering. The highlighting feature allows you to define colors for packets or frames matching particular criteria. It allows those frames to stand out as you browse through the captured frames

NEW QUESTION 12
The data rate for a data frame is 150 Mbps in 5 GHz. What rate is used to transmit the PHY header information?

• A. 1 Mbps
• B. 150 Mbps
• C. 75 Mbps
• D. 6 Mbps

Answer: A

NEW QUESTION 13
HOTSPOT
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?
[MISSING]

• A. Mastered
• B. Not Mastered

Answer: A

NEW QUESTION 14
You are troubleshooting a connection problem with a client STA. Regardless of the AP to which it attempts to connect, the connection fails. Using a wired protocol analyzer, you determine that the problem is with the 802.1X/EAP authentication to the RADIUS server.
What layer or range of layers of the OSI model revealed this information?

• A. Layer 3
• B. Layer 2
• C. Below Layer 3
• D. Above Layer 4

Answer: A

NEW QUESTION 15
When evaluating modulation and coding schemes, you must determine the best coding rate available. In 802.11 MCS tables, what is the best coding rate from the perspective of highest data rates?

• A. 5/6
• B. 3/4
• C. 2/3
• D. 1/2

Answer: A

NEW QUESTION 16
Several users have reported WLAN network connection issues and the users connect to the same AP. These users are spread throughout a 320 square meter area. Using a spectrum analyzer, you see RF energy across the entire 2.4 GHz band at significant signal strength levels. The users all connect using either HT or ERP devices.
What is the likely cause of this problem within this area?

• A. Wide-band jammer
• B. Microwave oven
• C. Bluetooth devices
• D. Video camera

Answer: A

NEW QUESTION 17
You are troubleshooting throughput problems for a WLAN cell. The cell is provisioned with an 802.11ac dual-band AP. Users connected with both 5 GHz and 2.4 GHz connections are reporting performance problems. The AP settings are properly optimized. No interface issues have been detected (either co-channel interference or non-Wi-Fi interference) and the number of associated users is low.
What should you analyze to resolve the issue?

• A. The 2.4 GHz radio configuration
• B. The antennas used on the client devices
• C. the Ethernet uplink and the network infrastructure
• D. The 5 GHz radio configuration

Answer: C

NEW QUESTION 18
Recently, three rogue APs have been connected to the network and later discovered. You want to prevent future rogue AP installations as much as possible.
What is the first step to eliminating or reducing rogue APs on the network?

• A. Use IPSec between every AP and the network infrastructure
• B. Define a direct policy that stipulates the ramifications of installing unauthorized devices
• C. Create a hash of the MAC addresses of all authorized devices and continually scan for non-matching hashes
• D. Enable rogue detection in the existing authorized APs

Answer: D

NEW QUESTION 19
ABC Company requires the ability to identify and quickly locate rogue devices. ABC has chosen an overlay WIPS solution with Wi-Fi sensors that use dipole antennas to perform this task. No other sensors are included. Use your knowledge of location tracking techniques to answer the question.
Which one of the following location methods is not available in the described system?

• A. GPS Positioning
• B. Time Difference of Arrival (TDoA)
• C. RF Fingerprinting
• D. Trilateration of RSSI measurements

Answer: C

NEW QUESTION 20
iPerf is a tool used in what category of testing?

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

Answer: D

NEW QUESTION 21
You are concerned with management overhead in your WLAN. When evaluating the network, you note that each dual-band AP provides for 4 SSIDs in each band with three secure SSIDs and one Open System SSID. The network runs only 802.11ac APs and uses 20 MHz channels in 2.4 GHz and 400 MHz channels in 5 GHz.
What can you do to reduce the impact of beacon frames on CCI and channel utilization?

• A. Increase the beacon interval
• B. Use only 40 MHz channels
• C. Use the same security across all SSIDs
• D. Disable SSID broadcasting

Answer: D

NEW QUESTION 22
You require 802.11ac capture solution. You want to capture using native operating system tools if possible.
What operating system has built-in ability to capture 802.11ac frames assuming it is running on the appropriate laptop hardware?

• A. Windows 10
• B. Mac OS X
• C. Windows 7
• D. Windows 8.1

Answer: B

NEW QUESTION 23
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