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Huawei H12-421 中文 Exam Syllabus Topics:

Huawei HCIP-Data Center Facility Deployment V1.0 (H12-421中文版) Sample Questions:

1. ECC800 上的 2.4G 天线应安装在 ( ) 中。

A) DO输出干接点
B) RS485接口
C) 3G/4G天线接口
D) RF_ZA线路接口

2. ECC800 不支持历史数据导出。

A) 错误
B) 真

3. 反灌保护卡的作用是当主干道或旁路发生能量反转时。反灌保护卡发出驱动报警信号，驱动跳闸开关（客户自行配置）断开，起到反灌保护作用。

A) 错误
B) 真

4. 以下空调系统需要配备冷却塔或干冷器（）。

A) DX风冷型
B) CW风冷型
C) 直接通风空调系统
D) DX水冷型

5. NetCol5000-A空调压缩机排气温度过高，是什么原因？（多项选择）

A) 室外机安装不正确。
B) 制冷剂回路或装置堵塞
C) 冷凝器污垢堵塞导致散热不良
D) 制冷剂充注量过少

Solutions: