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

1. 防火墙工作在主备方式的双机热备。内网服务器提供网页服务,外网用户访问时经常出现访问速度慢或无法访问的现象。内网用户访问正常。
可能有哪些原因 ?

A) 业务来回路径可能不一致,未启用会话快速备份。
B) 没有开启 Ospf Cost 调整 ·
C) 备份通道故障,导致部分会话备份失败。
D) tcp-mss 值设置不对。

2. 如图所示攻击,相应的防御方法有:

A) 载荷检查防御
B) 通过关联的 TCP 协议对用户进行验证
C) 通过源认证的方法防御
D) 通过 TTL 检查的方法进行防御
E) 指纹学习防御

3. 本地 License 无法激活的可能原因有哪些 ?

A) 设备没有配置激活密码
B) License 中的功能项已过期
C) ESN 不匹配
D) 设备无法连接 sec.huawei.com

4. IKEv1 和 IKEv2 的区别,下面哪些描述是正确的 ?

A) IKEv2 支持 EAP 认证, IKEv1 不支持。
B) IKEv2 兼容 IKEv1 协议。
C) 针对用户认证 IKEv1 使用 IKE_AUTH 交换, IKEv2 使用 X_AUTH 交换。
D) IKEv1 和 IKEv2 都是用 INITIAL_CONTACT 来同步本端和对端的 SA 。
E) NAT 穿越都是 IKEv1 和 IKEv2 的可选功能。

5. 总部和分支机构之间使用 IPsec 隧道通信,为了确保数据在 Internet 上传输时的安全性。管理员使用双机热备功能提高总部和分支机构通信的可靠性,避免总部的一台 USG 出现故障造成分支机构无法访问总部。
根据以下组网图,下列说法正确的是 ?

A) 只能使用主备备份方式下的 IPsec 双机热备。
B) USG A , USG_B 必须开启 NAT 穿越。
C) 只能采取 ESP 和 Tunnel 模式封装。
D) USG A , USG_B 和 USG_C 只需要配置 Internet 的路由,无需在 USG_A , USG_B 和 USG_C 配置分支内网到总部内网间的路由。

Solutions: