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

1. 下列属于应用层攻击的是:

A) CC 攻击
B) Smurf 攻击
C) 缓冲区溢出
D) Teardrop 攻击

2. 在硬件安全接入控制网关采用下一代防火墙的情况下,在 " 策略 > 准入控制 > SAC 配置 > 硬件 SACG" ,选择 " 受控域 " 页签,增加受控域 ERP （ 172.10.11.1/32 )和 DB_Oracle （ 172.10.12.32/32 ),然后通过 CLI 查询防火墙配置,获得以下信息:
display acl all
............
Advanced ACL 3100, 1 rule, not binding with vpn-instance
Acl's step is 1
rule 1 deny ip (0 times matched)
Advanced ACL 3101, 1 rule, not binding with vpn-instance
Acl's step is 1
rule 1 permit ip (0 times matched)
Advanced ACL 3102, 1 rule, not binding with vpn-instance
Acl's step is 1
rule 1 deny ip destination 172.13.11.10 (0 times matched)
Advanced ACL 3103, 1 rule, not binding with vpn-instance
Ad's step is 1
rule 1 permit ip destination 172.13.11.10 (0 times matched)
Advanced ACL 3354,
关于以上 ACL 的配置,下列说法正确的是哪些 ?

A) 可以通过管理员在 Agile Controller 管理器上进行受控域手工同步把受控域下发到硬件安全接入控制网关。
B) Agile Controller 管理器会定时检查并下发控制域配置,该问题会自动修复。
C) 当前受控域未完全下发到硬件安全接入控制网关。
D) 只能登录硬件安全接入控制网关,在诊断模式下执行受控域刷新命令 sync role-info ,主动从 Agile Controller 管理器请求刷新受控域解决。

3. 在网络流量很大的时候,如果不希望下游网络因为上游发送数据流量过大而造成拥塞或大量报文的直接丢弃,可以在上游设备的出接口限制并缓存流量,使这类报文以比较均匀的速度向外发送。
这种技术可以是:

A) GTS
B) WRED
C) CBWFQ
D) Car

4. 网络上一台服务器近期响应非常慢,通过查看其运行状态,发现其 CPU 和内存占用比率很高,但这些 TCP 会话连接中数据传输量很小或几乎没有数据传输。
针对此问题现象的下述判断,请选择出最佳一项:

A) 服务器正受到 TCP 欺骗攻击。
B) 服务器正受到 HTTP POST 慢速攻击。
C) 服务器正受到 SYN flood 攻击。
D) 服务器正受到 UDP flood 攻击。

5. IKEv1 和 IKEv2 的区别,下面哪些描述是正确的 ?

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

Solutions: