Huawei HCNA - GSM RNP&RNO 認定 H35-510 試験問題:
1. Zero padding means that in order to make the radiation level in the service area more uniform, in the vertical plane of the antenna, the first zero point of the lower side lobes is filled with a beamforming design.
A) True
B) False
2. In the GSM system, when the same frequency and the same BSIC appear in the network:
A) has an impact on call quality
B) There must be a low handover success rate, a low voice connection rate, and low signaling connectivity.
C) There may be a low handover success rate, a low voice connection rate, and low signaling connectivity.
D) No effect on signaling connection rate
3. Traffic is 0.025Erl, which means:
A) One channel is occupied for 25 minutes per hour.
B) One channel is occupied for 15 minutes per hour.
C) One channel is occupied for 2.5 minutes per hour.
D) One channel is occupied for 1.5 minutes per hour.
4. In a certain frequency plan, in addition to the main BCCH frequency, the 6M band is allocated to the TCH, and 1×3 frequency hopping is adopted. To ensure that the same adjacent frequency collision does not occur in the same base station, the maximum station configuration is:
A) S777
B) S666
C) S555
D) S444
5. The effects of tower amplifiers on the system are: (Multiple choice)
A) 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;
B) The tower top amplifier reduces the noise figure of the base station receiving system, thereby improving the receiving sensitivity of the base station system;
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) 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;
質問と回答：
| 質問 # 1 正解： A | 質問 # 2 正解： C | 質問 # 3 正解： D | 質問 # 4 正解： B | 質問 # 5 正解： A、B、D |
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