CWAP-404試験無料問題集（184題）「CWNP Certified Wireless Analysis Professional 認定」

出題：1

Given a protocol analyzer can decrypt WPA2-PSK data packets providing the PSK and SSID are configured in the analyzer software.
When performing packet capture (in a non-FT environment) which frames are required in order for PSK frame decryption to be possible?

A. Probe Response

B. Reassociation

C. 4-Way Handshake

D. Authentication

正解：C 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：2

Given the frame capture and the decode shown,

after which Beacons in the list shown (as indicated by the frame number in the leftmost column) would multicast traffic have been sent in this infrastructure BSS if multicast traffic had been queued for transmission at the access point? (Choose 2)

A. frame number 55

B. frame number 57

C. frame number 50

D. frame number 51

E. frame number 53

F. Framenumber 49

G. frame number 54

正解：A,D 解答を投票する

出題：3

A PHY Header is added to the PSDU at which sub-layer?

A. MAC

B. LLC

C. PHY

D. Network

正解：C 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：4

What is the function of 802.11 Management frames?

A. Manage the BSS

B. Prioritize network administration traffic

C. Communicate configuration changes between WLAN controller and APs

D. Manage the flow of data

正解：A 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：5

A manufacturing facility has installed a new automation system which incorporates an 802.11 wireless network. The automation system is controlled from tablet computers connected via the WLAN. However, the automation system has not gone live due to problem with the tablets connecting to the WLAN. The WLAN vendor has been onsite to perform a survey and confirmed good primary and secondary coverage across the facility. As a CWAP you are called in to perform Spectrum Analysis to identify any interference sources. From the spectrum analysis, you did not identify any interference sources but were able to correctly identify the issue. Which of the following issues did you identify from the spectrum analysis?

A. The tablets are entering power save mode and failing to wake up to receive the access points transmissions

B. There is a power mismatch between the APs and the clients

C. A high noise floor has resulted in a SNR of less than 20%

D. The tablets are connecting to the wrong SSID

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：6

Your wireless network troubleshooting kit includes an antenna with the following specifications:
Gain: 5 dBi
Azimuth Beamwidth: 55 degrees
Elevation Beamwidth: 50 degrees
Frequency Range: 2.4 - 2.5 GHz and 4.9 - 5.9 GHz
Polarization: Linear
Impedance: 50 Ohms
For what aspect of network troubleshooting would this antenna be most useful?

A. Identifying problems with Fresnel zone clearance in long range (10+ miles / 16+ km) point-to- point links

B. Capturing BSS-wide CRC error and retry statistics in most indoor WLAN environments

C. Increasing resolution bandwidth (RBW) on a spectrum analyzer to improve signature identification features

D. Matching transmit and receive capabilities for most client stations to reproduce client reception issues

E. Finding the physical location of an interfering transmitter to identify and remove the source

正解：E 解答を投票する

出題：7

When a client station operating under EDCA sends an RTS frame and NAV protection is desired for only the first or sole frame in the TXOP, the duration field will contain an amount of time, measured in microseconds, equal to which of the following?

A. 1 RTS, 1 CTS, 2 ACK , 1 DATA, 4 SIFS

B. 1 CTS, 2 ACK, 1 DATA, 2 SIFS

C. 1 RTS, 1 ACK, 1 DATA, 2 SIFS, 1 DIFS

D. The entire duration of the TXOP

E. 1 RTS, 2 ACK, 1 DATA, 4 SIFS

F. 1 CTS, 1 ACK, 1 DATA, 3 SIFS

正解：F 解答を投票する

出題：8

A client is operating in an unstable RF environment. Out of five data frames transmitted to the client it only receives four. The client sends a Block Ack to acknowledge the receipt of these four frames but due to frame corruption the Block Ack is not received by the AP. Which frames will be transmitted?

A. Only the Block Ack

B. All data frames

C. Only the data frame which was corrupted

D. Both the corrupted data and Block Ack

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：9

Given: Protocol analyzer often have useful graphical dashboards providing information about the health and operations of the WLAN.
What is a valid use of a graph showing the Top APs Based on Active Associations?

A. Discovering the total number of client STAs on your network

B. Locating overloaded APs

C. Evaluating the capacity handling on a specific channel

D. Ensuring compliance with corporate security policies

正解：B 解答を投票する

出題：10

Which common feature of a Spectrum Analyzer would be the best to help you locate a non-
802.11 interference source?

A. Device finder

B. Max hold

C. Waterfall plot

D. Location filter

正解：A 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：11

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. Create a hash of the MAC addresses of all authorized devices and continually scan for non- matching hashes

C. Enable rogue detection in the existing authorized APs

D. Define a direct policy that stipulates the ramifications of installing unauthorized devices

正解：C 解答を投票する

出題：12

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?

A. Captive portal Internet gateway

B. Client-to-client direct communications

C. Inter-VAP filtering

D. DNS settings

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：13

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

A. To DS = 1, From DS = 0

B. To DS = 0, From DS = 1

C. To DS = 0, From DS = 0

D. To DS = 1, From DS = 1

正解：C 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：14

802.11k Neighbor Requests and Neighbor Reports are sent in what type of Management Frames?

A. Beacon

B. Reassociation Request and Reassociation Response

C. RRM

D. Action

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

CWAP-404試験無料問題集「CWNP Certified Wireless Analysis Professional 認定」