Huawei Certified Network Associate-GSM RNP&RNO 認定 H35-510-ENU 試験問題:

1. The bandwidth of the GSM900M system currently used by mobile communication companies is:

A) 4MHz
B) 10MHZ
C) 19MHz
D) 6MHz

2. The feeder of Antenna Feeder needs to be backwatered before entering the room to prevent rainwater from flowing out of the rack along the feeder.

A) True
B) False

3. The effects of tower amplifiers on the system are: (Multiple choice)

A) When the noise figure of the tower top amplifier is small, the noise coefficient improvement of the base station receiving system is more obvious after the tower top amplifier is increased, and the noise figure of the tower top amplifier is too large, which may cause the noise figure of the base station receiving system to deteriorate;
B) When the base station feeder is long and the feeder loss is large, after the tower top amplifier is increased, the noise figure improvement (reduction) of the base station receiving system is more obvious, and the uplink improvement is obvious;
C) When the base station's own noise figure is small (ie, the receiving sensitivity is high) and the feeder is short, the improvement of the noise figure of the receiving system of the base station after the increase of the towering amplifier is great.
D) The tower top amplifier reduces the noise figure of the base station receiving system, thereby improving the receiving sensitivity of the base station system;

4. In the case where the base station is equipped with a tower, the same noise floor lifting limit requires a lower uplink gain or a smaller distance between the base station and the repeater.

A) True
B) False

5. When the standing wave ratio is 1.4, the return loss is:

A) 15.6 dB
B) 16.6dB
C) 14dB
D) 17.6dB

質問と回答：