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阅读以下应用L2TPv2协议实现VPN安全接入的技术说明，根据要求回答问题1至问题5。 【说明】 某企业应用L2TPv2协议部署企业的虚拟专用网(VPN)，以方便企业的VIP用户及出差员工通过公共Internet安全地访问企业内部LAN资源，其网络拓扑结构如图8-16所示。该VPN网络结构中，远程客户将访问唯一的节点，即安全远程访问服务器(SRAS)，该节点既是NAS服务的PPP终端，也是进入企业专用网的安全网关节点。 在Internet上捕获并分析图8-16所示的网络中两个内部网络经由Internet通信的L2TPv2数据帧，请从以下4个选项中选择正确的答案填写到图8-17的(1)～(4)空缺处的相应位置。 【供选择的答案】 A．L2TPv2头 B．PPP头 C．UDP头 D．封装后IP头
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【简答题】When you travel in HongKong , you must be careful of the traffic rules , because the traffic keeps to the left and it’s d ifferent from that of the interior (内地) of China . Before crossing the street ...
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【简答题】A．The man was driving too fast. B．The man did not pay attention to the traffic lights. C．The woman had jumped the traffic lights. D．The woman was talking while driving.
查看完整题目与答案
【多选题】对备选方案的要求是( )。
A.
互相包容
B.
互相排斥
C.
具有典型性
D.
具有一般性
查看完整题目与答案
【单选题】The traffic lights were red when the driver reached them. To the surprise of his passenger, the car did not slow down. Unexpectedly the passenger was thrown forward in the vehicle as the driver put on...
A.
at the bottom
B.
in the middle
C.
at the top
D.
below the green light
查看完整题目与答案
【判断题】(判断)软件开发中成本、质量和工期三者之间是互斥关系。() A . 错 B . 对
A.
正确
B.
错误
查看完整题目与答案
【简答题】假设你是华特电子公司的财务分析员,目前正在进行一项针对四个备选方案的投资分析工作,个方案的投资期都是一年,对应于三种不同经济状况的估计报酬率如表所示: 经济状态 概率 备选方案 A B C D 衰退 0.2 10% 6% 22% 5% 一般 0.6 10% 11% 14% 15% 繁荣 0.2 10% 31% -4% 25% 要求: 1. 计算各方案的期望报酬率、标准差、离散系数 2. 公司的财务...
查看完整题目与答案
【单选题】The traffic lights were red when the motorist moved to them. To the surprise of this passenger the car did not slow down. Suddenly the passenger was thrown forward in the car as the driver stopped it ...
A.
to see red traffic lights
B.
not to notice the traffic lights
C.
to be color blind
D.
not to see the red traffic lights
查看完整题目与答案
【判断题】钢筋混凝土受弯构件开裂后,受拉构件的应力 σ s 与配筋率 ρ 无关。
A.
正确
B.
错误
查看完整题目与答案
【简答题】at the traffic lights
查看完整题目与答案
【判断题】财务决策就是指企业管理人员应当按照财务战略目标的总体要求,利用专门的方法对各种备选方案进行比较和分析,并从中选出最佳方案的过程。( )
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【简答题】When you travel in HongKong , you must be careful of the traffic rules , because the traffic keeps to the left and it’s d ifferent from that of the interior (内地) of China . Before crossing the street ...
查看完整题目与答案
【简答题】A．The man was driving too fast. B．The man did not pay attention to the traffic lights. C．The woman had jumped the traffic lights. D．The woman was talking while driving.
查看完整题目与答案
【多选题】对备选方案的要求是( )。
A.
互相包容
B.
互相排斥
C.
具有典型性
D.
具有一般性
查看完整题目与答案
【单选题】The traffic lights were red when the driver reached them. To the surprise of his passenger, the car did not slow down. Unexpectedly the passenger was thrown forward in the vehicle as the driver put on...
A.
at the bottom
B.
in the middle
C.
at the top
D.
below the green light
查看完整题目与答案
【判断题】(判断)软件开发中成本、质量和工期三者之间是互斥关系。() A . 错 B . 对
A.
正确
B.
错误
查看完整题目与答案
【简答题】假设你是华特电子公司的财务分析员,目前正在进行一项针对四个备选方案的投资分析工作,个方案的投资期都是一年,对应于三种不同经济状况的估计报酬率如表所示: 经济状态 概率 备选方案 A B C D 衰退 0.2 10% 6% 22% 5% 一般 0.6 10% 11% 14% 15% 繁荣 0.2 10% 31% -4% 25% 要求: 1. 计算各方案的期望报酬率、标准差、离散系数 2. 公司的财务...
查看完整题目与答案
【单选题】The traffic lights were red when the motorist moved to them. To the surprise of this passenger the car did not slow down. Suddenly the passenger was thrown forward in the car as the driver stopped it ...
A.
to see red traffic lights
B.
not to notice the traffic lights
C.
to be color blind
D.
not to see the red traffic lights
查看完整题目与答案
【判断题】钢筋混凝土受弯构件开裂后,受拉构件的应力 σ s 与配筋率 ρ 无关。
A.
正确
B.
错误
查看完整题目与答案
【简答题】at the traffic lights
查看完整题目与答案
【判断题】财务决策就是指企业管理人员应当按照财务战略目标的总体要求,利用专门的方法对各种备选方案进行比较和分析,并从中选出最佳方案的过程。( )
A.
正确
B.
错误
查看完整题目与答案