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The 5dB coupler has a coupling degree of 5dB and an insertion loss of 2dB. If the input signal power is 17dBm, what is the output power of the coupling port?

A.

10dBm

B.

12dBm

C.

14dBm

D.

15dBm

Under the following conditions, if you want to deploy WLAN without interrupting service, please choose () controller as the best strategy:

Enterprise wireless terminals are 500, with notebooks, smart phones, wireless cameras, etc.; enterprise switching network access layer is 3700 series switching

The core layer is the 5700 series switch. The company's export is the NE20 router. Enterprises need to implement user grouping and QOS policies.

A.

Use the AR3260 to hang as AC

B.

Use AC6605 to connect directly to AC

C.

Use AC6605 to hang as AC

D.

Use the ACU2+77 switch to do AC

What is the correct description of the WLAN site survey for different typical scenarios?

A.

The office surveys the main load-bearing columns and partitions to cover the impact. If it is an overall suspended ceiling, the AP should be considered as close to the maintenance port, if it is metal

Ceiling, you can choose to place the AP under the ceiling or wall mount

B.

If the wall of the school classroom is made of reinforced concrete, the signal attenuation is large. It is best to measure the attenuation when surveying. The teaching building should pay attention to the weak electricity room.

Set

C.

The ward inspection scene has high requirements for coverage field strength, roaming effect, and bandwidth requirements. At the same time, it is necessary to pay attention to the interference or disallow of medical equipment.

Area with Wi-Fi signal

D.

The stadium has a complicated environment and difficult wiring. Therefore, the weak house and the wiring should be confirmed with the property. If the distance is too far, it may be considered.

Adding an external switch, the survey should focus on mutual interference and installation methods between APs.

Which of the following is the highest security strength of the encryption algorithm?

A.

WEP

B.

TKIP

C.

CCMP

D.

DES

What is the optional AP model for WLAN deployment?

A.

AP5010SN

B.

AP6010SN

C.

AP6310SN

D.

AP6510DN

When conducting WLAN security planning, in order to support guest registration, what is the recommended authentication method for visitors?

A.

WEB certification

B.

WPA-PSK

C.

WEB-Portal certification

D.

dot1x certification

Which of the following objects or materials has the highest penetration loss to WLAN signals?

A.

Wooden door

B.

Glass window

C.

Brick wall

D.

Metal

Which of the following is not a way to increase the range of coverage signal strength?

A.

Adjust the AP position

B.

Reduce the transmit power

C.

Adjust the antenna angle

D.

Increase the transmit power

In the coverage area, only the area where the field strength is required is selected (B), and the area with the specified number of bandwidth requirements is selected (A), and there is no concern whether there is a signal. Area selection?

A.

Key coverage areas

B.

Ordinary coverage area

C.

Blind area

Which of the following addresses can be used as an internet address?

A.

10.1.1.6/30

B.

10.1.1.7/30

C.

172.18.1.17/30

D.

224.1.1.16/30