H12-311 Dumps Updated | Actual Study Questions

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Question 1:

When did the initial application of the wireless network begin?

A. During a major war

B. During the Second World War

C. Late 20th century

D. After 2000

Correct Answer: B

Question 2:

Which of the following standards organizations is implementing WLAN technology interoperability for WLAN device authentication?

A. WiFi Alliance

B. IEEE

C. IETF

D. FCC

Correct Answer: A

Question 3:

Which of the following protocols are IEEE 802.11 standards Select 3 Answers)?

A. 802.11a/b/g/n

B. 802.11i

C. 802.1X

D. 802.11s

Correct Answer: ABD

Question 4:

Which of the following standards is WLAN (Select 2 Answers)?

A. 802.11a/b/g/n

B. WPA

C. WPA2

D. 802.11i

Correct Answer: BC

Question 5:

How many channels does China support in the 2.4 GHz band?

A. 11

B. 13

C. 3

D. 5

Correct Answer: B

Question 6:

Which of the following options is in the 5GHz band supported by China?

A. 5.15~5.25GHz

B. 5.25~5.35GHz

C. 5.725~5.825GHz

D. 5.725~5.850GHz

Correct Answer: D

Question 7:

What are the modulation methods (Select 3 Answers) depending on the signal parameters being controlled?

A. amplitude modulation

B. frequency modulation

C. phase modulation

D. modulation

Correct Answer: ABC

Question 8:

Which modulation method does the following picture belong to?

A. amplitude modulation

B. frequency modulation

C. phase modulation

D. modulation

Correct Answer: B

Question 9:

What is the name of the first radio communication network based on packet technology?

A. INTERNET

B. ARPANet

C. ALOHNET

D. NSFnet

Correct Answer: C

Question 10:

What are the WLAN operating bands (Select 2 Answers)?

A. 2 GHz

B. 5 GHz

C. 5.4 GHz

D. 2.4 GHz

Correct Answer: BD

Question 11:

How many channels can the 2.4 GHz band be divided into?

A. 14

B. 13

C. 11

D. 3

Correct Answer: A

Question 12:

What is the US non-overlapping channel in the 2.4 GHz band?

A. 2 , 7, 12

B. 3, 8, 13

C. 1, 6, 11

D. 3, 7, 13

Correct Answer: C

Question 13:

What is the distance between the center frequencies of the channels in the 2.4 GHz band?

A. 20 MHz

B. 22 MHz

C. 5 MHz

D. 10 MHz

Correct Answer: C

Question 14:

What is the operating frequency set by China in the 2.4 GHz band?

A. 2.4 GHz-2.4835 GHz

B. 2.471 GHz-2.497 GHz

C. 2.4465 GHz-2.4835 GHz

D. 2.445 GHz-2.475 GHz

Correct Answer: A

Question 15:

The basic service set is the basic component of an 802.11 network and consists of a set of workstations that communicate with each other.

A. True

B. False

Correct Answer: A