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更新されたのは2023年05月合格させるCWNA-108試験にはリアル練習テスト問題
CWNP CWNA-108試験は、無線ネットワーク技術と管理に焦点を当てた認定試験です。この試験は、無線ネットワークで働く人々の知識やスキルをテストし、その専門性を確認するために設計されています。CWNA-108試験は、無線LANの設計、実装、トラブルシューティング、セキュリティ、および無線ネットワーク管理を含む幅広いトピックをカバーしています。この認定は世界中で認められ、候補者の無線ネットワーク技術に対する熟練度を証明するものです。
CWNP CWNA-108 認定試験は、ネットワーク管理者、ネットワークエンジニア、ワイヤレスサポートスペシャリスト、ワイヤレスネットワークデザイナーなど、ワイヤレスネットワークに興味のある技術者に最適です。この試験は、ベンダーまたは製品に特定されないベンダー中立型の認定試験です。
質問 # 30
What distinguishes an independent basic service set (IBSS) from an infrastructure basic service set (BSS)?
- A. An IBSS does not have a distribution system (DS), but a BSS does.
- B. An IBSS does not support any 802.11ac enhancements, but a BSS does.
- C. An IBSS does not require beacon frames, but a BSS does.
- D. An IBSS does not support 802.11 authentication or association, but a BSS does.
正解：A
質問 # 31
You are troubleshooting a client issue on a Windows laptop. The laptop can see and connect to 2.4 GHz APs, but is does not even see 5 GHz APs. While evaluating the issue, you determine that this problem is happening for all of the laptops of this model in the organization. Several other tablets connect on channel 48 and channel 52 in the same work areas. What is the likely problem?
- A. The access points are configured to disallow 5 GHz.
- B. The clients are configured to use WPA and 5 GHz channels only support WPA2.
- C. The client drivers are faulty and should be upgraded.
- D. The antennas in the laptop have insufficient gain to detect the 5 GHz signals.
正解：D
質問 # 32
You are troubleshooting a controller-based AP that is unable to locate the controller. DHCP is not use and the controller is located at 10.10.10.81/24 while the AP is on the 10.10.16.0/24 network. What should be inspected to verify proper configuration?
- A. NTP
- B. DBS
- C. BOOTP
- D. AP hosts file
正解：D
質問 # 33
You were previously onsite at XYZ's facility to conduct a pre-deployment RF site survey. The WLAN has been deployed according to your recommendations and you are onsite again to perform a post-deployment validation survey.
When performing this type of post-deployment RF site survey for voice over Wi-Fi. what is an action that must be performed?
- A. Spectrum analysis to locate and identity RF Interference sources
- B. Frequency-band hopping analysis to detect improper RF channel implementations
- C. Application analysis with an active phone call on a VoWiFi handset
- D. Protocol analysis to discover channel use on neighboring APs
正解：A
質問 # 34
You are implementing a VHT-capable AP. Which one of the following channels is available in the
802.11ac amendment to the 802.11-2012 standard, which was not available in the standard before this amendment?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
正解：A
質問 # 35
Which directional antenna types are commonly used by indoor Wi-Fi devices in a MIMO multiple spatial stream implementation?
- A. Dish and grid
- B. Dipole and yagi
- C. Grid and sector
- D. Patch and panel
正解：D
質問 # 36
You are attempting to locate the cause of a performance problem in two WLAN cells in a mostly overlapping coverage area. You note that one AP is on channel 1 and the other is on channel 2.
When you document yoy findings, what term do you use to describe the problem in this configuration?
- A. Bluetooth interference
- B. ACI
- C. CCI
- D. Non-Wi-Fi interference
正解：B
解説：
Adjacent channel interference is more serious and occurs when 2 or more AP's are on overlapping channels, for example channel 1 + 4 on the 2.4Ghz band. ACI creates overlap in the frequency space causing corrupted data and layer 2 re-transmissions.
質問 # 37
Prior to association, what parameter can 802.11 client devices measure and use to select the optimal access point for association?
- A. Average round trip time to reach the IP router
- B. Average round trip time to reach the Internet DNS server
- C. Signal strength of access point beacons received
- D. Retry rate of probe request and response frames
- E. Proximity to potential access points
正解：C
質問 # 38
What is always required to establish a high quality 2.4 GHz RF link at a distance of 3 miles (5 kilometers)?
- A. A minimum antenna gain of 11 dBi at both endpoints
- B. A Fresnel Zone that is at least 60% clear of obstructions
- C. Grid antennas at each endpoint
- D. Minimum output power level of 2 W
- E. Accurate Earth Bulge calculations
正解：B
質問 # 39
What term correctly completes the following sentence?
802.11a/b/g used a mandatory 800ns guard interval. 802.11n introduced an optional short 400ns guard interval. Guard intervals (GI) are necessary in OFDM to reduce the likelihood of interference between two consecutive ____________.
- A. Bits
- B. Bytes
- C. Frames
- D. Segments
- E. Symbols
- F. Packets
正解：E
質問 # 40
What standard is referenced into the 802.11-2012 specification and is recommend for robust WLAN client security?
- A. IPSec VPN
- B. 802.1X/EAP
- C. SSID hiding
- D. WEP
正解：B
質問 # 41
You are implementing a multi-AP WLAN and fast secure roaming is essential. Which one of the following methods is an IEEE 802.11 standard method for fast roaming?
- A. OKC
- B. Load balancing
- C. Band steering
- D. FT
正解：D
質問 # 42
To ease user complexity, your company has implemented a single SSID for all employees.
However, the network administrator needs a way to control the network resources that can be accessed by each employee based on their department.
What WLAN feature would allow the network administrator to accomplish this task?
- A. WPA2
- B. WIPS
- C. SNMP
- D. RBAC
正解：D
質問 # 43
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 5GHz radios. Some semi-directional antennas are also in use. What kind of deployment is described?
- A. SOHO
- B. Standard office
- C. High density
- D. Residential
正解：A
解説：
Explanation/Reference:
質問 # 44
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 # 45
What is the final step in an effective troubleshooting process?
- A. Notify the users of problem resolution
- B. Document the results
- C. Disable the WLAN
- D. Verify the solution
正解：B
質問 # 46
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 AP is overloaded during the work day
- B. The drivers in the laptop are corrupt
- C. The external hard drive is USB 3.0 and is causing a significant increase in the noise floor when in use
- D. The laptop has a failing wireless adapter
正解：C
質問 # 47
You have been tasked with creating a wireless link between two buildings on a single campus.
The link must support at least 150 Mbps data rates.
What kind of WLAN technology role should you deploy?
- A. Access BSS
- B. IBSS
- C. WPAN
- D. Wireless bridging
正解：B
質問 # 48
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. All clients implement single spatial stream radios
- B. The AP is improperly configured to use only 40 MHz of the 80 MHz allocated bandwidth
- C. The clients are all 802.11n STAs or lower
- D. The short guard interval is also enabled
正解：C
質問 # 49
Two co-located 802.11b/g/n APs can interfere with one another and cause contention and collisions, even when the two APs are operating on non-overlapping channels (e.g. 1 & 6).
What deployment flaw could cause this problem?
- A. Reflective objects in the area are causing significant multipath.
- B. The access points are not synchronized to the same NTP server.
- C. The access points are mounted too closely to one another.
- D. A client station is using active scanning to probe for access points on multiple channels.
正解：C
質問 # 50
What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) modulation method in IEEE 802.11 WLANs?
- A. OFDM was used by Frequency Hopping Spread Spectrum (FHSS) PHY devices.
- B. OFDM modulation is used only in 5 GHz 802.11 transmissions.
- C. OFDM implements BPSK modulation to allow for data rates up to 7 Gbps.
- D. OFDM was first introduced in 802.11a and is used by the ERP, HT and VHT PHYs as well.
正解：D
解説：
Explanation
質問 # 51
During a post-implementation survey, you have detected a non-802.11 wireless device transmitting in the area used by handheld 802.11g scanners. What is the most important factor in determining the impact of this non-
802.11 device?
- A. Receive sensitivity
- B. Channel occupied
- C. Protocols utilized
- D. Airtime utilization
正解：D
質問 # 52
You are implementing a VHT-capable AP. Which one of the following channels is available in the
802.11-2016 standard, which was not available before the ratification of 802.11ac?
- A. 0
- B. 1
- C. 2
- D. 3
正解：A
質問 # 53
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