H3C GB0-342 Exam : H3CSE-WLAN

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H3C GB0-342 Exam Syllabus Topics:

H3CSE-WLAN Sample Questions:

1. 以下哪种操作可以最简单有效的避免 AP 工作环境中的干扰 ?

A) 重启 AP 设备
B) 调整 AP 工作信道
C) 更换 AP 天线
D) 调整 SSID 的 VLAN 属性

2. 在无线网络勘测过程中,以下说法正确的是:

A) 在进行室内的多 AP 部署时,在满足一定用户密度的无线应用需求下,要选择合适的 AP 安装位置、安装方式、发射功率等,以尽可能的减少三维空间中的信号可见数量。
B) 在进行无线网络勘测时,需要保证覆盖范围与实际应用需求区域相同,当信号的覆盖受到障碍物的影响而导致无线信号覆盖范围无法满足实际应用需求区域时,则需要及时地调整部署方案。
C) 在进行室内的多 AP 部署时,为保证有较好的信号强度指标, AP 应工作在最大发射功率,同时需要注意 AP 间的信道划分。
D) 当在三维空间内规划信号覆盖时,跨楼层的信号泄漏问题难以避免。所以,对于信号泄露带来的无线链路质量下降问题需加以考虑和优化。

3. 关于 ACK 确认以及重传机制的说法,正确的是。

A) 无线的重传报文会保持初始速率发送,不会降速传递,以减少占用空口的时间
B) 每个多播的无线帧,必须得到接收端的 ACK 回应,否则必须重传
C) 无线短帧丢失重传的最大次数缺省为 7 次
D) 每个单播的无线帧,必须得到接收端的 ACK 回应,否则必须重传

4. 当 AP 的分集天线接口有不使用的时候,或者在做分布式系统时,功分器的端口没有使用,这种情况下,需要用 ______ 拧到接口上,防止射频干扰对系统产生影响。

A) 2dBi 增益天线
B) 射频匹配负载
C) 1/2" 馈缆
D) 7/8" 馈缆

5. Fit AP 二层注册中,在 AC 上查看到 AP 处于 Idle 状态,可能的原因有

A) 网络中没有 DHCP 服务器
B) AC 携带的 AP 软件版本与 AC 软件版本不匹配
C) AC 上 Fit AP 模板序列号或者型号信息配置错误
D) Fit AP 没有上电
E) Fit AP 和 AC 不在同一个 VLAN 中

Solutions: