JPNTestからの試験合格準備の必需品CWNA-108試験トレーニング問題
有効なパス率はCWNA CertificationのCWNA-108試験問題
CWNP CWNA-108 認定試験の出題範囲：
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質問 58
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. Wireless bridging
- C. IBSS
- D. WPAN
正解: B
解説:
https://www.wlanmall.com/what-is-a-wireless-bridge/
質問 59
What statement about the IEEE 802.11-2016 QoS facility is true?
- A. When the Voice queue has frames awaiting transmission, no data will be transmitted from the Best Effort queue.
- B. Four 802.1p user priorities are mapped to eight 802.11 transmit queues.
- C. 802.11 QoS is achieved by giving high priority queues a statistical advantage at winning contention.
- D. 802.11 control frames are assigned to the 802.11 EF priority queue.
正解: C
質問 60
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 is unsupported by most access points
- B. It is a 2.4 GHz frequency band 40 MHz channel, so it should not be used
- C. It is a channel that likely requires DFS when used
- D. It is a 22 MHz channel so it will overlap with the channels above and below it
正解: C
質問 61
Which one of the following channels can be used for VHT transmissions?
- A. 0
- B. 1
- C. 2
- D. 3
正解: D
質問 62
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. Wireless bridging
- C. IBSS
- D. WPAN
正解: B
質問 63
Prior to association, what parameter can 802.11 client devices measure and use to select the optimal access point for association?
- A. Retry rate of probe request and response frames
- B. Proximity to potential access points
- C. Signal strength of access point beacons received
- D. Average round trip time to reach the IP router
- E. Average round trip time to reach the Internet DNS server
正解: C
質問 64
Which IEEE 802.11 physical layer (PHY) specification includes support for and compatibility with both ERP and HR/DSSS?
- A. OFDM (802.11a)
- B. DSSS (802.11-Prime)
- C. HT (802.11n)
- D. VHT (802.11ac)
正解: C
質問 65
What statement accurately describes the RF cables and connectors that are used in an
802.11 WLAN system?
- A. 75 and 125 ohms are the typical impedances of 802.11 WLAN connectors.
- B. Large diameter RF cables cause greater loss than small diameter cables.
- C. Two RF connectors of the same type (e.g. SMA), manufactured by different companies, may vary in specifications.
- D. Some RF connectorsdo not cause insertion loss.
正解: C
質問 66
The center frequency of channel 1 in the 2.4 GHz band is 2.412 GHz (2412 MHz). What is the center frequency of channel 4?
- A. 2.427
- B. 2.422
- C. 2.413
- D. 2.417
正解: A
質問 67
What is a channel mode specified by the 802.11n (High Throughput) PHY?
- A. 80 MHz
- B. Frequency Hopping
- C. 22 MHz
- D. 20/40 MHz
正解: D
質問 68
In an 802.11n WLAN with a heterogeneous set of associated client devices including 802.11b,
11g, and 11n, what HT protection mode will the BSS use?
- A. Mode 0: No protection mode (Greenfield)
- B. Mode 2: 20 MHz protection mode
- C. Mode 1: Nonmember protection mode
- D. Mode 3: Non-HT mixed mode
正解: D
質問 69
What statement about 802.3, Clause 33 Power over Ethernet is true?
- A. When using CAT5 cabling, you increase the maximum draw available to the PD over that available with CAT6.
- B. Only midspan PSEs are supported.
- C. Only endpoint PSEs are supported.
- D. The lowest voltage drop is achieved when using CAT6 cable instead of Cat5 or CAT5e.
正解: D
解説:
https://www.cablinginstall.com/articles/2012/08/cat-6a-vs-cat-5e-poe.html
質問 70
Your consulting firm has recently been hired to complete a site survey for a company. Your engineers use predictive design software for the task, but the company insists on a pre- deployment site visit. What task should be performed as part of the pre-deployment visit to prepare for a predictive design?
- A. Collect information about the company's security requirements and the current configuration of their RADIUS and user database servers
- B. Evaluate the building materials at ABC's facility and confirm that the floor plan documents are consistent with the actual building
- C. Install at least one AP on each side of the exterior walls to test for co-channel interference through these walls
- D. Test several antenna types connected to the intended Aps for use in the eventual deployment
正解: B
質問 71
What term correctly completes the following sentence?
In an IEEE 802.11 frame, the IP packet is considered by the MAC layer to be a(n) _________.
- A. IP datagram
- B. PLCP Protocol Data Unit (PPDU)
- C. PLCP Service Data Unit (PSDU)
- D. MAC Service Data Unit (MSDU)
- E. MAC Protocol Data Unit (MPDU)
正解: D
質問 72
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. Symbols
- B. Bits
- C. Segments
- D. Packets
- E. Bytes
- F. Frames
正解: A
質問 73
What is appended to the end of each 802.11 data frame after the payload?
- A. Preamble
- B. FCS
- C. PHY header
- D. MAC header
正解: B
質問 74
When a STA has authenticated to an AP (AP-1), but still maintains a connection with another AP (AP-2), what is the state of the STA on AP-1?
- A. Unauthenticated and Unassociated
- B. Authenticated and Associated
- C. Transitional
- D. Authenticated and Unassociated
正解: C
質問 75
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全問CWNA-108問題集とCWNP Certified Wireless Network Administrator Examトレーニングコース：https://www.jpntest.com/shiken/CWNA-108-mondaishu