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H3C GB0-342 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: WLAN Deployment and Configuration | - SSID configuration and VLAN mapping - RF planning and channel assignment - AP discovery and registration |
| Topic 2: H3C WLAN Architecture & Products | - Access point types and deployment scenarios - Cloud vs controller-based WLAN design - H3C wireless controller architecture |
| Topic 3: WLAN Security | - WPA/WPA2/WPA3 security mechanisms - 802.1X authentication - Guest access and portal authentication |
| Topic 4: Wireless Fundamentals | - WLAN architecture concepts - Wireless standards (802.11 a/b/g/n/ac/ax overview) - Radio Frequency (RF) principles |
| Topic 5: WLAN Optimization and Troubleshooting | - Performance monitoring and fault diagnosis - Interference analysis - Roaming optimization |
H3CSE-WLAN Sample Questions:
1. 空口信道利用率 * 是判断 AP 当前信道繁忙程度的重要指标,通过查看 AP 的空口信道利用率 " 可以判断此信道当前的占有情况。
下列关于如何查看空口信道利用率 " 的描述,正确的是（)
A) 默认情况下,系统每隔 9 秒检测一次信道利用率
B) 当 AP 的工作信道切换时,系统会清空统计记录值
C) 在隐藏命令模式下,使用命令 *display ar5d radio-num channel busy 进行空口信道利用率 + 的查询
D) 通过命令查看该值时,系统会统计最近 20 次的信道利用率值
2. 以上可以工作在 2.4GHz 频段的无线协议是
A) 802.11g
B) 802.11n
C) 802.11a
D) 802.11b
3. 关于管理帧信息单元说法正确的是
A) Association ID 关联 ID ,每个成功关联 AP 的 STA 都会被分配一个关联 ID 号；
B) TIM 数据待传指示是一串 bit 位图,每个位代表一个关联用户, 0 和 1 代表有无缓存数据
C) Listen interval 是休眠客户端必须定期唤醒监听 Beacon 的时间间隔
D) Beacon interval 的间隔缺省是 100 ,单位是毫秒
4. 在无线信号的远距离传输中,菲涅尔区（ Fresnel Zone )是一个重要的概念。
以下关于菲涅尔区说法正确的是
A) 菲涅尔区的大小是路径长度的函数,路径越长,则菲涅尔区越宽。
B) 在菲涅尔区中的任何障碍物都有可能影响网络的通信,最好给与清楚,保证 60% 的菲涅尔区被视为有效的。一般可以根据经验值
C) 菲涅尔区是在视距的路径中形成的一个椭圆区域。它随着可视距离和信号频率的改变而改变,必须的菲涅尔区净空在路径中心处
D) 无线信号沿直线传播,但在传播时会散开,而波束之间必需净空就称为菲涅尔区。
5. 无线控制器在做本地 mac 认证时,用户名和密码都必须配置成无线客户端的 mac 地址。用户名和密码的 mac 地址中字母形式是:
A) 用户名是大写,密码是小写
B) 用户名是小写,密码是大写
C) 用户名和密码都是小写
D) 用户名和密码都是大写
Solutions:
| Question # 1 Answer: A,B,C,D | Question # 2 Answer: A,B,D | Question # 3 Answer: A,B,C,D | Question # 4 Answer: A,B,C,D | Question # 5 Answer: C |
