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H3CSE-RS-NSO Sample Questions:
1. 下列 PPPoE 的报文中,哪些是以广播形式发送的 ?
A) PADT ( PPPoE Active Discover Terminate )
B) PADR ( PPPoE Active Discover Request )
C) PADO ( PPPoE Active Discover Offer )
D) PADS ( PPPoE Active Discover Session-Confirmation )
E) PADI ( PPPoE Active Discover Initiation )
2. 下列 VPN 技术中,属于第三层 VPN 的有。(选择一项或多项)
A) IPSec VPN
B) VLL
C) L2TP VPN
D) BGP/MPLS VPN
3. 下列有关 GRE 的描述哪些是正确的 ? (选择一项或多项)
A) 采用 IP over IP 的 GRE 封装方式,公网和私网接口地址不可以重合
B) GRE 用以太协议类型 Ox0806 标识载荷包为 IP
C) GRE VPN 可以传送组播数据
D) 承载 IP 头以 IP 协议号 47 标识 GRE 头
4. 在 MSR 路由器显示信息如下:
Sstem Defined Behavior Information:
Behavior: ef
Expedited Forwarding :
Bandwidth 20 ( % ) Cbs-ratio 25
Behavior: af
Assured Forwarding :
Bandwidth 20 ( % )
Discard Method: Tail
Behavior: be
-none-
则下列说法不正确的是
A) 其中定义了 EF 队列和 AF 队列,占用带宽分别为预留带宽的 20%
B) 显示的信息为用户定义的行为
C) 显示的信息为系统定义的行为
D) 用户可以修改该行为中队列所占带宽的百分比
5. 下列关于 H323 终端的描述错误的是。
A) 普通 PSTN 电话是一个标准的 H323 终端设备
B) 普通的 H323 终端有可能不支持传真功能
C) 连接在 PSTN 电话网上的传真机是一个标准的 H323 终端设备
D) 普通的 H323 终端有可能不支持视频功能
Solutions:
Question # 1 Answer: E | Question # 2 Answer: A,D | Question # 3 Answer: A,C,D | Question # 4 Answer: B,D | Question # 5 Answer: A,C |