H12-311 Free Practice Test

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

1. A. 2.4 GHz-2.4835 GHz
2. B. 2.471 GHz-2.497 GHz
3. C. 2.4465 GHz-2.4835 GHz
4. D. 2.445 GHz-2.475 GHz

Correct Answer: A

For lobe width, the following description is correct (Select 3 Answers).

1. A. In the main lobe range, the power density decreases by half (3dB) relative to the maximum radiation direction.
2. B. The narrower the lobes, the better the directionality, the farther the radiation distance, the stronger the anti-interference ability
3. C. The pattern usually has two or more petals
4. D. The terminal can receive the signal only within the half power angle coverage.

Correct Answer: ABC

Capacity planning mainly estimates the number of APs needed to meet the traffic volume in terms of device performance, number of users, bandwidth requirements, and wireless environment.

1. A. True
2. B. False

Correct Answer: A

On a WDS network, a root AP can connect to multiple leaf APs, but a leaf AP can connect to only one root AP.

1. A. True
2. B. False

Correct Answer: A

What is the recommended AC-ID for the Huawei wireless controller when configuring the WLAN service of the enterprise network?

1. A. cmcc (China Mobile)
2. B. ctc (China Telecom)
3. C. cuc (China Unicom)
4. D. other (Other)

Correct Answer: B