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H12-311_V3.0 Exam Dumps - Huawei HCIA-WLAN Questions and Answers

Question # 64

DSSS The modulation methods used are BPSK and QPSK .

Options:

A.

True

B.

False

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Question # 65

Among the following encryption methods, the most secure is ()

Options:

A.

Plaintext encryption

B.

WEP encryption

C.

TKIP encryption

D.

CCMP encryption

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Question # 66

2.4 GHz What is the frequency band US non-overlapping channel ()?

Options:

A.

2,7,12

B.

3,8,13

C.

1,6,11

D.

3,7,13

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Question # 67

Which of the following types of frames is the 802.11 ACK frame?

Options:

A.

Control frame

B.

Null data frame

C.

Data frame

D.

Management frame

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Question # 68

AP able to pass POE The switch performs power supply and data transmission.

Options:

A.

True

B.

False

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Question # 69

According to the different signal parameters controlled, what modulation methods can be divided into ()? (Select 3 Answers)

Options:

A.

AM

B.

FM

C.

phase modulation

D.

Wave modulation

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Question # 70

The index used to describe the degree of antenna convergence of the transmit power is (

Options:

A.

Broadband

B.

power

C.

Gain

).

D.

polarity

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Question # 71

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 AC.

D.

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

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Question # 72

According to the following output, the correct statement below is ().

display version

Huawei Versatile Routing Platform Software

VRP (R) software, Version 5.70 (AC6605 V200R001C00)

Copyright (C) 2003-2012 Huawei TECH CO., LTD

Quidway AC6605-PWR Routing Switch uptime is 0 week, 1 day, 23 hours, 33 minutes

H852V26S 0(Master): uptime is 0 week, 1 day, 23 hours, 33 minutes

512M bytes DDR Memory

128M bytes FLASH

Check the running status of the AC6605.

(Select 3 Answers)

Options:

A.

display version, you can see that the VRP version number of the current device is 5.70

B.

At present, the equipment has been running continuously for 1 day, 23 hours, 33 minutes

C.

At present, the device has used 512M bytes of system memory

D.

The total size of the flash memory of the device is 128M bytes

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Question # 73

For outdoor WLAN Cover, the following statement is correct ().

(Select 3 Answers)

Options:

A.

The higher the antenna gain, the stronger the antenna directivity, and the weaker the radiation gain directly below the antenna

B.

The feeder interface must match the selected antenna

C.

The length of the feeder must not exceed 2 rice

D.

Outdoor antennas should not blindly pursue high gain

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Exam Code: H12-311_V3.0
Exam Name: HCIA-WLAN V3.0
Last Update: Feb 5, 2025
Questions: 338
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