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H3C GB0-392 Exam Syllabus Topics:

H3CSE-RS-NSO Sample Questions:

Question 1

用户使用电话时,拿起电话手柄输入被叫号码后,从听筒中传出的回铃音属于下列哪种信令。

A. 信息信令
B. 呼叫信令
C. 监管信令
D. 地址信令

Question 2

在一个典型的 PPPoE 组网中, PPPoE Server 和 PPPoE Client 均为 MSR 路由器,如果希望 PPPoE 会话
空闲 3 分钟后自动断线,需要进行以下哪些配置（选则一项或多项)。

A. PPPoE-Client 上配置: [HG-Dialerl] pppoe-client dial-bundle-number l idle-timeout 3
B. PPPoE-Server 上配置: [RTA-Virttual-Template1] pppoe-client dial-bundle-number l idle-timeout 3
C. PPPoE Client 上配置: [HG-Ethernet0/0] pppoe-client dial-bundle-number l idle-timeout 180
D. PPPoE Server 上配置: [RTA-Ethernet0/0] pppoe-client dial-bundle-number l idle-timeout 180
E. PPPoE Client 上配置: [HG-Dialerl] pppoe-client dial-bundle-number l idle-timeout 3
F. PPPoE Server 上配置: [RTA-Virtual--Template1] pppoe-client dial-bundle-number l idle-timeout 180

Question 3

在以太网接入应用中,关于运行商接入网边缘的接入点 AN 和汇聚设备 AGG 部署说法正确的有。

A. AN 采用二层交换机时,相对于三层交换机可队实现更高密度的终端用户接入
B. AN 采用二层交换机时,在 AN 和 AGG 上需要支持和部署复杂的二层隔离和安全特性
C. AN 采用三层交换机时,相对于二层交换机更加有助于控制广播域的范围
D. AN 采用三层交换机时,一台 AGG 设备最多可接用户终端数将不再受限于其自身 MAC 地址表项数

Question 4

主叫 UA 发送一条请求消息并收到被叫 UA 的 200OK 响应,此主叫如何撤销刚才的请求 ?

A. 无法撤销刚才的请求
B. 立即向被叫 UA 发送 Cancel 消息
C. 立即向被叫 UA 发送 Back 消息
D. 立即向被叫 UA 发送 BE 消息

Question 5

以下关于 RED （随机早期检测)的说法正确的是

A. 平均队列长度小于最低丢弃门限时,不丢弃报文
B. 平均队列长度大于最高丢弃门限时,随机丢弃到来的报文
C. 报文优先级越高的队列其丢弃概率越低。也就意味着越少被丢弃
D. 在端口拥塞之后进行丢弃
E. 平均队列长度小于最低丢弃门限时,小于最高丢弃门限时,随机丢弃到来的报文

Solutions: