2021年最新の認定サンプル問題CWNA-108問題集と練習試験合格させます
CWNA-108豪華セット学習ガイドにはオンライン試験エンジン
CWNP CWNA-108 認定試験の出題範囲：
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質問 57
You manage a WLAN with 100 802.11ac access points. All access points are configured to use 80 MHz channels. In a particular BSS, only 40 MHz communications are seen. What is the likely cause of this behavior?
- A. The short guard interval is also enabled
- B. The clients are all 802.11n STAs or lower
- C. All clients implement single spatial stream radios
- D. The AP is improperly configured to use only 40 MHz of the 80 MHz allocated bandwidth
正解: B
質問 58
You are configuring an access point to use channel 128. What important fact should be considered about this channels?
- A. It is a channel that likely requires DFS when used
- B. It is a 2.4 GHz frequency band 40 MHz channel, so it should not be used
- C. It is a channel that is unsupported by most access points
- D. It is a 22 MHz channel so it will overlap with the channels above and below it
正解: A
質問 59
Which IEEE 802.11 physical layer (PHY) specifications include support for and compatibility with both ERP and HR/DSSS?
- A. HT (802.11n)
- B. OFDM (802.11a)
- C. DSSS (802.11-Prime)
- D. VHT (802.11ac)
正解: A
質問 60
Which unit of measurement is an absolute unit that is used to quantify received signal power levels on a logarithmic scale?
- A. RSSI
- B. VSWR
- C. dBm
- D. SNR
正解: C
質問 61
A natural disaster has occurred in a remote area that is approximately 40 miles from the response team headquarters. The response team must setup a local wireless network using 802.11 WLAN access points. What is the best method, of those listed, for implementation of network backhaul for communications across the Internet in this scenario?
- A. Temporary wired cable
- B. 802.11 bridging
- C. Cellular/LTE
- D. Temporary wired DSL
正解: C
質問 62
What non-standard WLAN solution attempts to give a longer transmission windows to devices with higher data rates then devise with lower data rates?
- A. RRM
- B. Band Steering
- C. AirTime Fairness
- D. ARM
正解: C
質問 63
You are selecting antennas for a WLAN operating in the 5 GHz frequency band. What specifications should be evaluated for an antenna before it is implemented in this WLAN system?
- A. Impedance in Ohms
- B. TPC support
- C. 802.11ad compatibility
- D. Return Loss Rating
正解: A
質問 64
What factors will have the most significant impact on the amount of wireless bandwidth available to each station within a BSS?
- A. The power management settings in the access point's beacons
- B. The layer 3 protocol used by each station to transmit data over the wireless link
- C. The number of client stations associated to the BSS
- D. The presence of co-located (10m away) access points on non-overlapping channels
正解: C
質問 65
An RF signal sometimes bends as it passes through some material other than free space.
What is the term that describe this behavior?
- A. Warping
- B. Reflection
- C. Refraction
- D. Scattering
正解: C
質問 66
You are deploying a WLAN with the access points configured for 10 mW of output power on the
2.4 GHz radios and 20 mW of output power on the 5 GHz radios. Some semi- directional antennas are also in use. What kind of deployment is described?
- A. SOHO
- B. Residential
- C. Standard office
- D. High density
正解: D
質問 67
ABC Company has thousands of Wi-Fi users accessing their network on a daily basis. Their WLAN consists of 700 access points, 6 WLAN controllers, and a wireless network management system.
What network functions are performed by the enterprise-class WNMS?
- A. Management of WLAN controller configuration and provisioning of firmware updates
- B. Generating, encrypting, and decrypting 802.11 frames and collecting RF radio data.
- C. Radio management, fast roaming, key caching, and other centralized control plane operations
- D. Centralized bridging of guest data traffic and application of firewall and QoS policies to data
正解: A
質問 68
What cause of hidden nodes within a BSS would be more likely lead to an increase in collisions and retries?
- A. Access pointsbroadcasting with too little power
- B. Client stations broadcasting with too much power
- C. Data frames too large for the physical environment
- D. Large 802.11 cells with physically distributed stations
正解: A
質問 69
When using a spectrum to look for non Wi-Fi interference sources, you notice significant interference across the entire 2.4 GHz band (not on a few select frequencies) within the desktop area of a users workspace, but the interference disappears quickly after just 2 meters. What is the most likely cause of this interference?
- A. Excess RF energy from a nearby AP
- B. USB 3 devices in the user's work area
- C. Unintentional radiation from the PC power supply
- D. Bluetooth devices in the user's work area
正解: C
質問 70
An RF signal sometimes bends as it passes through some material other than free space. What is the term that describes this behavior?
- A. Warping
- B. Reflection
- C. Refraction
- D. Scattering
正解: C
質問 71
What is appended to the end of each 802.11 data frame after the payload?
- A. Preamble
- B. FCS
- C. MAC header
- D. PHY header
正解: B
質問 72
You are troubleshooting a client problem with a 2.4 GHz WLAN connection. The client is experiencing surprisingly low data rates during the work day. You analyze the workspace outside of business hours and detect a strong signal with a typical noise floor at the client location. During working hours, the user works with a laptop in the area and uses an external USB hard drive for continuous data access. The user also states that the laptop works as expected on her home network. The user working approximately 8 feet away from this client experiences no problems.
Based on this information, what is the likely cause of the problem?
- A. The external hard drive is USB 3.0 and is causing a significant increase in the noise floor when in use
- B. The AP is overloaded during the work day
- C. The drivers in the laptop are corrupt
- D. The laptop has a falling wireless adapter
正解: B
質問 73
The requirements for a WLAN you are installing state that it must support unidirectional delays of less than 150 ms and the signal strength at all receivers can be no lower than -67 dBm. What application is likely used that demands these requirements?
- A. E-Mail
- B. RTLS
- C. FTP
- D. VoIP
正解: D
質問 74
You are installing AP to be used by 23 laptops. All laptops will connect on the 5 GHz frequency band. A neighbor network uses channels 1 and 6. What channel should be used for this AP and why?
- A. Channel 6, because it is always best to use this channel
- B. Channel 1, because it is best to use the channel with the lowest frequency
- C. A 5 GHz channel, because channels 1 and 6 are 2.4 GHz channels they have no impact on the decision
- D. Channel 11, because channels 1 and 6 are in use nearby
正解: C
質問 75
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CWNA-108問題集レビュー専門クイズで学習材料：https://www.jpntest.com/shiken/CWNA-108-mondaishu