CWNA-109問題集、CWNP実際の試験問題

質問 1

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. WPAN

B. Access BSS

C. IBSS

D. Wireless bridging

正解: D

解説: (PassTest メンバーにのみ表示されます)

質問 2

Which unit of measurement, as formally defined, is an absolute unit that is used to quantify received signal power levels on a logarithmic scale?

A. dBi

B. dBm

C. VSWR

D. SNI

正解: B

解説: (PassTest メンバーにのみ表示されます)

質問 3

What statement about 802.11 WLAN performance is true?

A. In modem networks, both centralized and distributed data forwarding work well for most standard office deployments

B. To get the best performance out of an AP, you should disable data rates of 72 Mbps and lower

C. WLANs perform better as more wireless clients connect with each AP

D. In most WLANs, no special skill or tuning is required to get peak performance

正解: A

解説: (PassTest メンバーにのみ表示されます)

質問 4

You are a small business wireless network consultant and provide WLAN services for various companies. You receive a call from one of your customers stating that their laptop computers suddenly started experiencing much slower data transfers while connected to the WLAN. This company is located in a multi-tenant office building and the WLAN was designed to support laptops, tablets and mobile phones. What could cause a sudden change in performance for the laptop computers?

A. The sky was not as cloudy that day as it typically is and the sun also radiates electromagnetic waves.

B. The antennas in the laptops have been repositioned.

C. A few of your customer's users have Bluetooth enabled wireless headsets.

D. A new tenant in the building has set their AP to the same RF channel that your customer is using.

正解: D

解説: (PassTest メンバーにのみ表示されます)

質問 5

Return Loss is the decrease of forward energy in a system when some of the power is being reflected back toward the transmitter. What will cause high return loss in an RF transmission system, including the radio, cables, connectors and antenna?

A. A significant impedance mismatch between components in the RF system

B. The use of 50 ohm cables longer than one meter in the RF system

C. High output power at the transmitter and use of a low-gain antenna

D. A Voltage Standing Wave Ratio (VSWR) of 1:1

正解: A

解説: (PassTest メンバーにのみ表示されます)

質問 6

You must plan for POE in an office environment. Which one of these devices is least likely to be a POE PSE?

A. VolP Phone

B. Midspan injector

C. Switch

D. Midspan multi-port injector

正解: A

解説: (PassTest メンバーにのみ表示されます)

質問 7

What ID is typically mapped to an AP's MAC address if a single BSS is implemented?

A. SSID

B. BSSID

C. Device ID

D. VLAN ID

正解: B

解説: (PassTest メンバーにのみ表示されます)

質問 8

What is the correct sequence of frame exchanges required for a client station to fully connect to an open, unencrypted 802.11 BSS?

A. Association, then Authentication.

B. Authentication only; Association is optional.

C. Authentication, then Association.

D. Probe Request, then Association only.

正解: C

解説: (PassTest メンバーにのみ表示されます)

質問 9

A wireless engineer measures a high VSWR value on an antenna cable run. What does this indicate?

A. There is a significant impedance mismatch causing signal reflection.

B. The transmitter power is set too low.

C. The antenna has excessive gain.

D. The cable length is too short.

正解: A

解説: (PassTest メンバーにのみ表示されます)

CWNP Wireless Network Administrator (CWNA) - CWNA-109 模擬練習