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

1. USG 防火墙 URL 过滤的匹配优先级顺序为 ?

A) 白名单、黑名单、预定义分类、自定义分类
B) 黑名单、白名单、预定义分类、自定义分类
C) 白名单、黑名单、自定义分类、预定义分类
D) 黑名单、白名单、自定义分类、预定义分类

2. 在如图的组网中,在 Web 服务器未配置访问外网的缺省网关,为保证外网用户通过 NAT Server 正常访问 Web 服务器,以下对防火墙的配置规划哪一项是正确的:

A) 需要在防墙上为外网用户配置 destination-nat ,将访问的 web 服务器公网地址转换成内网地址
B) 需要在防火墙上配置 nat server ,保证外网用户能够通过访问 202.20.1.5 访问 Web 服务器。
C) 需要在防火墙配置 DMZ 到 Untrust 方向的源 NAT ,让 Web 服务器可以访问外网,这样 Web 服务器回应报文才能返回到外网用户。
D) 需要在防火墙上配置 Untrust 到 DMZ 方向的源 NAT ,将外网用户访问 Web 服务器的数据包的源地址转换为 192.168.1.1 。

3. 使用 UTM 功能时,可以关闭链路状态检测功能,以防止网络报文存在来回路径不一致时未通过防火墙状态检测而丢包。

A) FALSE
B) TRUE

4. 某客户网络拓扑如图所示。

PC 和 FW 之间建立 LZTP 隧道, PC 作为客户端, FW 作为 LNS 端,管理员完成配置后,发现 L2TP 隧道无法建立成功。
在用户视图下执行命令 debug l2tp packet 打开调试开关,看到如下 debug 信息:
USG %%01L2TP/8/L2TDBG (d): L2TP::Check SCCRQ MSG Type 1
USG %%01L2TP/8/L2TDBG (d): L2TP::Parse AVP Protocol version: 100
USG %%01L2TP/8/L2TDBG (d): L2TP::Parse AVP Framing capability: 1
USG %%01L2TP/8/L2TDBG (d): L2TP::Parse AVP Bearer capability, value: 0
USG %%01L2TP/8/L2TDBG (d): L2TP::Parse AVP Firmware revision, value: 1200
USG %%01L2TP/8/L2TDBG (d): L2TP::Parse AVP Host name, value: maple-54b160e59
USG %%01L2TP/8/L2TDBG (d): L2TP::requested Host isn't in the define l2tp group, refuse the requested
USG %%01L2TP/8/L2TDBG (d): L2TP::Clear Calls On Tunnel ID=1 Reason=1
根据以上信息,哪个故障分析选项是正确的 ?

A) Virtual Template 接口没有加入安全域
B) LNS 远端隧道名配置不正确
C) L2TP Group 隧道验证失败
D) 客户端 LNS IP 地址配置错误

5. 以下哪种攻击利用了主机在收到目的端口为 7 （ ECHO )和 19 （ Chargen )的 UDP 报文后,都会产生回应的机制 ?

A) Winnuke 攻击
B) Teardrop 攻击
C) Fraggle 攻击
D) Land 攻击

Solutions: