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H12-311_V3.0 Exam Dumps - HCIA-WLAN V3.0

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Question # 73

802.11 In the frame, RTS and CTS What is the interframe interval between ()?

A.

SIFS

B.

IFS

C.

DIFS

D.

PIFS

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Question # 74

original 802.11 What is the maximum rate supported by the protocol Mbps ()?

A.

1

B.

2

C.

5.5

D.

11

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Question # 75

Which of the following descriptions of management VLAN is correct is ().

A.

Mainly responsible for transmitting data when WLAN users go online

B.

PVID VLAN under the WLAN ESS interface

C.

Service VLAN under the service set template

D.

Responsible for the establishment of the CAPWAP tunnel between AC and AP

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Question # 76

Which of the following AP Mode does not belong to WDS The internet()?

A.

Root AP

B.

Middle AP

C.

Bridge AP

D.

Leaf AP

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Question # 77

The following figure shows the hardware structure of an AirEngine 5760-51. Which of the following statements is true?

A.

1: Reset button

B.

3: USB port

C.

2: Port that receives PoE power

D.

8: IoT slots

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Question # 78

The lobe width is a very important parameter commonly used in directional antennas. It refers to the width of the antenna's radiation pattern below the peak (.)dB The angle of the premises

A.

3

B.

4

C.

5

D.

6

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Question # 79

Which of the following options are 802.11b/g What are the differences between the agreements? (Select 3 Answers)

A.

Different throughput

B.

The two protocols use different technologies

C.

Different supported data rates

D.

Working frequency is different

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Question # 80

In the following options, () is not the main purpose of roaming.

A.

Avoid long authentication time during roaming, resulting in packet loss or even business interruption

B.

Ensure that the user authorization information remains unchanged

C.

Guarantee users IP The address remains unchanged

D.

Ensure that the user's network rate remains unchanged

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