VPN是虚拟专用网的简称，主要类型可分为网络层的IPSec VPN和应用层的(17)VPN两种，其中IPSec VPN主要是为了解决(18)的互联。A．PPTPB．SSLC．SocksD．CA
VPN是虚拟专用网的简称，主要类型可分为网络层的IPSec VPN和应用层的(17)VPN两种，其中IPSec VPN主要是为了解决(18)的互联。
A．PPTP
B．SSL
C．Socks
D．CA
相关考题：
以下关于VPN的说法中的哪一项是准确的?() A.VPN是虚拟专用网的简称，它只能只好ISP维护和实施B.VPN是只能在第二层数据链路层上实现加密C.IPSEC是也是VPN的一种D.VPN使用通道技术加密，但没有身份验证功能
某企业采用Windows 2000操作系统部署企业虚拟专用网(VPN)，将企业的两个异地网络通过公共 Internet安全地互联起来。微软Windows 2000操作系统当中对IPSec具备完善的支持，图13-3给出了基于 Windows 2000系统部署IPSec VPN的网络结构图。IPSec的密钥管理包括密钥的确定和分发。IPSec支持自动密钥分配和 [16] 两种密钥管理方式。试比较这两种方式的优缺点。如果按照图13-3所示的网络结构配置IPSec VPN，安全机制选择的是ES
阅读以下说明，回答问题1～4，将解答填入对应栏内。虚拟专用网是虚拟私有网络(Virtual Private Network，VPN)的简称，它是一种利用公共网络来构建的私有专用网络。对于构建VPN来说，网络隧道(Tunneling)技术是个关键技术。主要有两种类型的隧道协议：一种二层隧道协议，如PPTP、L2TP；另一种是三层隧道协议，GRE、IPsec。另外，还有第四层隧道协议，如SSL VPN。图3-1所示的是某公司的总部与其分支机构连接的示意图。针对不同的用户要求，VPN有三种解决方案：(1)、(2)和(3)。根据这三种解决方案的特点，该方案应该采用(2)。
阅读以下关于网络安全的技术说明，根据要求回答问题1～问题5。【说明】某企业采用Windows Server2003操作系统部署企业虚拟专用网(VPN)，将企业的两个异地网络通过公共Internet安全的互联起来。微软Windows Server 2003操作系统中对IPSec具备完善的支持，图1-16示出了基于Windows Server 2003系统部署IPSec VPN的网络结构图。使用VPN技术，是为了保证内部数据通过Internet安全传输。VPN技术主要采用哪些技术来保证数据安全?
在构建电子商务基础环境时。我们常常使用VPN来实现数据的安全传输。以下关于VPN的叙述中（）是不正确的。A.VPN通过压缩技术使传输速率大大超过线路的最大吞吐量B.常用的VPN包括IPsec VPN和SSL.VPNC.VPN的全称是虚拟专用网络D.VPN支持加密技术，使窃取VPN传输信息的难度加大
You are an experienced network administrator in an international corporation. During your working hours, you are asked to deploy the Cisco SSL VPN AIM module in a Cisco 1800 Series Router. The beneficial reason for that deployment is to:（）A. improve performance up to 300% for both IPsec and SSL VPN applicationsB. improve performance for both IPsec and SSL VPN applications with IPsec encryption taking place in hardwareC. improve performance up to 300% for both IPsec and SSL VPN applications with SSL encryption taking place in hardwareD. improve performance up to 200% for both IPsec and SSL VPN applications with encryption taking place in hardwareE. improve performance exclusively for SSL VPN applications
以下关于VPN的说法中的哪一项是正确的？（）A、VPN是虚拟专用网的简称，它只能对ISP维护B、VPN是只能在第二层数据链路层上实现加密C、IPSEC是也是VPN的一种D、VPN使用通道技术加密，但没有身份验证功能
以下关于VPN的说法中的哪一项是准确的？（）A、VPN是虚拟专用网的简称，它只能只好ISP维护和实施B、VPN是只能在第二层数据链路层上实现加密C、IPSEC是也是VPN的一种D、VPN使用通道技术加密，但没有身份验证功能
以下关于VPN的说法中哪一种是正确的？（）A、VPN是虚拟专用网的简称，它只能由ISP维护和实施B、VPN是只能在第二层数据链路层上实现加密C、IPSEC是VPN的一种D、VPN使用通道技术加密，但没有身份验证功能
防火墙IPSEC VPN特性支持哪些支持（）A、IPSEC VPN热备功能B、支持IPSEC VPN隧道化功能C、支持IKEV2和基于域名的协商功能D、支持手机、PAD上自带的IPSEC VPN软件进行连接
Which device might be installed at a branch office to enable and manage an IPsec site-to-site VPN?（）A、Cisco IOS IPsec/SSL VPN clientB、Cisco VPN ClinetC、ISDN terminal adapterD、Cisco Adaptive Security Appliance
You are an experienced network administrator in an international corporation. During your working hours, you are asked to deploy the Cisco SSL VPN AIM module in a Cisco 1800 Series Router. The beneficial reason for that deployment is to:（）A、improve performance up to 300% for both IPsec and SSL VPN applicationsB、improve performance for both IPsec and SSL VPN applications with IPsec encryption taking place in hardwareC、improve performance up to 300% for both IPsec and SSL VPN applications with SSL encryption taking place in hardwareD、improve performance up to 200% for both IPsec and SSL VPN applications with encryption taking place in hardwareE、improve performance exclusively for SSL VPN applications
You are considering deploying the Cisco SSL VPN AIM module in a Cisco 1800 Series Router.Which benefit should you expect?（）A、to improve performance exclusively for SSL VPN applicationsB、to improve performance up to 300% for both IPsec and SSL VPN applicationsC、to improve performance for both IPsec and SSL VPN applications with IPsec encryption taking place in hardwareD、to improve performance up to 200% for both IPsec and SSL VPN applications with encryption taking place in hardwareE、to improve performance up to 300% for both IPsec and SSL VPN applications with SSL encryption taking place in hardware
Regarding a route-based versus policy-based IPsec VPN， which statement is true？（）A、A route-based VPN generally uses less resources than a policy-based VPN.B、A route-based VPN cannot have a deny action in a policy； a policy-based VPN can have a deny action.C、A route-based VPN is better suited for dialup or remote access compared to a policy-based VPN.D、A route-based VPN uses a policy referencing the IPsec VPN； a policy-based VPN policy does not use apolicy referencing the IPsec VPN
单选题Regarding a route-based versus policy-based IPsec VPN， which statement is true？（）AA route-based VPN generally uses less resources than a policy-based VPN.BA route-based VPN cannot have a deny action in a policy； a policy-based VPN can have a deny action.CA route-based VPN is better suited for dialup or remote access compared to a policy-based VPN.DA route-based VPN uses a policy referencing the IPsec VPN； a policy-based VPN policy does not use apolicy referencing the IPsec VPN
单选题You are considering deploying the Cisco SSL VPN AIM module in a Cisco 1800 Series Router.Which benefit should you expect?（）Ato improve performance exclusively for SSL VPN applicationsBto improve performance up to 300% for both IPsec and SSL VPN applicationsCto improve performance for both IPsec and SSL VPN applications with IPsec encryption taking place in hardwareDto improve performance up to 200% for both IPsec and SSL VPN applications with encryption taking place in hardwareEto improve performance up to 300% for both IPsec and SSL VPN applications with SSL encryption taking place in hardware