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H12-311_V3.0 HCIA-WLAN V3.0 is now Stable and With Pass Result | Test Your Knowledge for Free

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H12-311_V3.0 Practice Questions

HCIA-WLAN V3.0

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Total Questions : 338

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Question # 11

Various pipes, metal keels and aluminum alloy gussets in the ceiling will have a greater impact on the actual signal coverage effect.

Options:

A.  

True

B.  

False

Discussion 0
Question # 12

If changed AP The configuration parameters of the radio must be restarted AP The order can only take effect.

Options:

A.  

True

B.  

False

Discussion 0
Question # 13

Perform connectivity test AP or AC Must be online.

Options:

A.  

True

B.  

False

Discussion 0
Question # 14

802.11n MAC Which of the following are included in the layer improvement

technology ()? (Select 2 Answers)

Options:

A.  

Frame aggregation technology

B.  

MIMO Technology

C.  

Block confirmation technology

D.  

Beamforming technology

Discussion 0
Question # 15

802.11g What is the bandwidth of each channel of the frequency band ()?

Options:

A.  

25 MHz

B.  

20 MHz

C.  

50 MHz

D.  

22 MHz

Discussion 0
Question # 16

For the choice of WLAN coverage antennas, it is recommended to choose () for long and narrow areas, and () for wide and short-distance areas.

Options:

A.  

Omnidirectional antenna; Omnidirectional antenna

B.  

Omnidirectional antenna; directional antenna

C.  

Directional antenna; omnidirectional antenna

D.  

Directional antenna; Directional antenna

Discussion 0
Question # 17

In a large wireless network deployment scenario, AC When configured to "Layer 3 networking + bypass mode + direct forwarding", the gateway of the wireless user should. Where is it located ()?

Options:

A.  

Convergence layer three switches

B.  

One-arm router

C.  

AC superior

D.  

AP superior

Discussion 0
Question # 18

Which of the following technologies work at 5 GHz ()? (Select 2 Answers)

Options:

A.  

radar

B.  

Bluetooth

C.  

Infrared

D.  

Digital satellite

Discussion 0
Question # 19

The gain of the antenna can be explained ().

Options:

A.  

Antenna's ability to amplify high-frequency electrical signals

B.  

The antenna's ability to collect or emit electromagnetic waves in a certain direction is strong or weak

C.  

Ability to amplify electromagnetic waves

D.  

The antenna's ability to collect or emit electromagnetic waves in all directions is strong or weak

Discussion 0
Question # 20

Which of the following statements is true about shared key authentication?

Options:

A.  

Shared key authentication requires that a STA and an AP have the same key preconfigured.

B.  

The shared key enables easy scalability and provides high security.

C.  

For a Fit AP, the shared key is preconfigured on an A

C.  

D.  

WEP encryption is not mandatory when shared key authentication is used.

Discussion 0
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