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H3CSE-WLAN Sample Questions:

1. （单选)以下不符合轨道交通无线部署工程规范的是。

A) 天线平行与轨道安装,天线安装高度与车载天线错开
B) 天线避雷针角度小于 30° ,并引入接地线,线缆长度不超过 30m
C) 线缆统一使用扎带固定,并通过指定的路线走线
D) AP 放置在防水箱内,箱体以及各设备做好国定、散热、防水处理

2. 增加全向天线的增益时,关于天线的覆盖范围,下列哪些描述为正确的 ?

A) 天线水平方向的覆盖范围增加
B) 天线垂直方向的覆盖范围减少
C) 天线垂直方向的覆盖范围增加
D) 天线水平方向的覆盖范围减少

3. 下列哪一个命令能够在 H3C 无线控制器中查看的详细信息,如 AP 获得的 IP 地址 ?

A) display wlan ap all
B) display wlan ap serial-id all
C) display wlan client
D) display wlan ap all verbose

4. 在 WLAN 中,以下哪些帧属于控制帧 ___

A) ACK
B) CTS
C) Beacon
D) RTS

5. 以下哪些技术为 802.11n 对原有 802.11a/b/g/ 的技术提升

A) Short GI
B) 帧聚合
C) 40MHZ 信道捆绑
D) OFDM-MIMO

Solutions: