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Huawei H12-731 中文 Exam Syllabus Topics:

Huawei HCIE-Security (Huawei Certified Internetwork Expert-Security) (H12-731中文版) Sample Questions:

1. 下列哪些命令是处理 E1/CE1 问题的时候需要用到的接口环回命令

A) loopback local
B) loopback check
C) loopback remote
D) test loopback
E) loopback

2. 关于 UDP Flood 和 TCP Flood 攻击防范说法正确的是:

A) UDP 协议是无连接的,因此无法通过源探测实现。
B) UDP 和 TCP 协议可以通过代理技术实现。
C) UDP 报文的指纹学习功能通过学习报文数据段全部字段。
D) 防范 UDP Flood 通过分析某个主机发送 UDP 报文的规律和特征,这个规律和特征被称为指纹学习。

3. IKEv1 和 IKEv2 的区别,下面哪些描述是正确的 ?

A) 建立 IKE SA 和 IPsec SA , IKEv2 使用 4 条消息, IKEV1 主模式使用 9 条消息。
B) IKEv1 默认支持 DPD ,只要在一端配置 DPD ,另一端就可以响应 DPD 报文。 IKEv2 不可以。
C) IKE SA 的完整性算法仅 IKEv1 支持。
D) IKEv2 可以借助 AAA 服务器分配私网 IP 地址, IKEv1 无法提供此功能。

4. 在双机热备的组网下,业务接口工作在三层,上下行连接交换机:

A) 当发生主备状态切换时候, Active 设备对外发布 VRRP 备份组虚拟 IP 地址的免 VARP , Standby 设备也会发布免费 ARP 。
B) USG1 整机发生故障或者重启时, USG2 连续 5 次收不到 USG1 发送的 VGMP Hello 报文,则认为 USG1 已经发生故障,立即切换为主用设备。
C) VGMP 管理组状态为 Active ,优先级为 65001 , VGMP 管理组状态为 Standby ,优先级为 65000 。
D) 当 USG1 和 Switch3 的链路中断的时候, VGMP 管理组优先级降低 2 。

5. DHCP Snooping 功能用于防止中间人攻击与 IP/MAC Spoofing 攻击,以下攻击原理和防范原理说法正确的是:

A) 通过设置 Trusted 和 Untrusted 接口识别攻击。
B) 攻击原理是冒充合法的 DHCP 客户端向 DHCP 服务器申请 IP 地址,导致合法的 DHCP 客户端无法正常获取 IP 地址。
C) 根据 DHCP Snooping 绑定表,识别伪造的报文。
D) 检查 DHCP 请求报文中 CHADDR 字段和数据帧头部的源 MAC 相匹配。

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