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

質問 1

As it pertains to HT L-SIG TXOP Protection, what statement is true?

（A）Support for L-SIG TXOP Protection is indicated in the HT Capabilities Info field of (re)association request frames sent by ERP, OFDM, and HT-OFDM stations.

（B）L-SIG TXOP Protection is specified for the purpose of protecting OFDM (802.11a/g) and HT- OFDM (802.11n) transmissions from HR/DSSS stations.

（C）An L-SIG TXOP protected frame exchange sequence always begins with an RTS/CTS or a CTS- to-Self.

（D）Support for L-SIG TXOP Protection is indicated by HT stations in the L-SIG field of the PLCP header of HT-mixed format frames.

正解：C 解答を投票する

質問 2

How is the length of an AIFS is calculated?

（A）SIFS * Slot Time + AIFSN

（B）AIFSN * Slot Time + SIFS

（C）DIFS + SIFS + AIFSN

（D）SIFS + AIFS * Time Unit

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 3

As a wireless network consultant you have been called in to troubleshoot a high-priority issue for one of your customers. The customer's office is based on two floors within a multi-tenant office block. On one of these floors (floor 5) users cannot connect to the wireless network. During their own testing the customer has discovered that users can connect on floor 6 but not when they move to the floor 5. This issue is affecting all users on floor 5 and having a negative effect on productivity. To troubleshoot this issue, you perform both Spectrum and Protocol Analysis. The Spectrum Analysis shows the presence of Bluetooth signals which you have identified as coming from wireless mice. In the protocol analyzer you see the top frame on the network is Deauthentication frames. On closer investigation you see that the Deauthentication frames' source addresses match the BSSISs of your customers APs and the destination address is FF:FF:FF:FF:FF:FF:FF. What do you conclude from this troubleshooting exercise?

（A）The CCI from the APs on the floor 4 is the problem and you need to ask the tenant below to turn down their AP's Tx power

（B）The customers APs are misbehaving and a technical support case should be open with the vendor

（C）The customer should replace all their Bluetooth wireless mice as they are stopping the users on floor 5 from connecting to the wireless network

（D）The users on floor 5 are being subjected to a denial of service attack, as this is happening across the entire floor it is likely to be a misconfigured WIPS solution belonging to the tenants on the floor below

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 4

An RST frame should be acknowledged by which frame?

（A）CTS

（B）RTS-Ack

（C）Ack

（D）Block Ack

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 5

You are creating a baseline configuration for a pool of 100 laptops related to Wi-Fi.
The laptops have dual- band 802.11ac adapters. They are configured for aggressive roaming.
What additional setting might you configure to ensure they access the WLAN on the channels with the least interference assuming the enterprise WLAN is well-designed?

（A）USB speed

（B）Power management

（C）802.11h

（D）Band preference

正解：D 解答を投票する

質問 6

When configuring a long term, forensic packet capture and saving all packets to disk which of the following is not a consideration?

（A）Real-time packet decodes

（B）Total capture storage space

（C）Individual trace file size

（D）Analyzer location

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 7

Which one of the statements regarding the Frame Control field in an 802.11 MAC header is true?

（A）The Frame Control field is used to communicate the duration value

（B）The Frame Control field is always set to 0

（C）Only Control frames have a Frame Control field

（D）The Frame Control field contains three sub-fields and eight one-bit flags

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 8

You are tasked with describing the various frames used in 802.11 communications.
What frame is used for spectrum management, fast BSS transition and some other actions taken within a BSA?

（A）CTS

（B）PS Poll

（C）Action

（D）BlockAck

正解：C 解答を投票する

質問 9

What is an AIFS?

（A）A variable Interframe Space introduced by 802.11e to help prioritize medium access for different Access Categories

（B）A medium access method introduced by 802.11n, but never implemented

（C）A form of aggregation performed at the PLCP sub-layer

（D）The shortest period of time a STA can sleep

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 10

When 802.11 standard compliant AES-CCMP security is being used with IPSec/ESP for layered security, what will a WLAN protocol analyzer see as the security mechanism in use when a user browses to an HTTPS secured web page?

（A）AES-CCMP and IPSec/ESP

（B）SSLv3

（C）AES-CCMP, IPSec/ESP, AND SSLv3

（D）IPSec/ESP

（E）AES-CCMP

正解：E 解答を投票する

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

弊社を連絡する

関連リンク

トップ試験