所谓的NAT（Network Address Translation）技术，就是指在一个网络内部，根据需要不经申请自定义（）。AIP地址B物理地址C网络层D数据链路层
所谓的NAT（Network Address Translation）技术，就是指在一个网络内部，根据需要不经申请自定义（）。
AIP地址
B物理地址
C网络层
D数据链路层
参考解析
略
相关考题：
NAT(Network Address Translation)顾名思义就是网络IP地址的转换。NAT的出现是为了解决IP日益短缺的问题，将多个内部地址映射为少数几个甚至一个公网地址。同时它还起到了隐藏内部网络结构的作用，具有一定的安全性。NAT主要包括3种方式：PAT、动态NAT和静态NAT，PAT(Port Address Translation)也简称为NAPT，就是将多个内部地址映射为一个公网地址。这种方式常用于拨号上Internet网。其部分清单配置如下。dial script. add set modem ABORT ERROR""ATZ OK ATL lMICID2SOS0=0OK (1)e0//设置e0的IP地址ip add10.191.140.254 255.255.255.0quits0//设置s0为PPP拨号方式encapsulate PPPline dialidletime 180init script. set modem//设置拨号脚本login_script. logindef_phone XXX//设置ISP的拨入电话号码nat enable//允许NAT出口speed 115kquitroute add default S0 1 (2)nat inside source interface S0 (3)动态NAT可以将多个内部地址映射为多个公网地址，常用于DDN专线上网。用户要得到多个公网地址，可以通过建立一个地址池，使大家共同使用这些公网地址。其部分清单配置如下。ippool add ciu 202.103.23.1 14 (4)e0//设置e0的IP地址ipadd10.191.140.254255.255.255.0quits0//设置s0为同步PPP专线方式，也可能为同步HDLC专线方式encapsulate ppp (5)port syncip add202.103.10.122255.255.255.252//设置端口地址map add202.103.10.121 (6)nat enable//允许NAT出口quitroute add default 202.103.10.121 1//设置缺省路由nat inside source pool ciu overload//设置为内部地址翻译，其中over load表示多个内部地址可同时使用一个公网地址。静态NAT可以将内部地址与公网地址建立一一对应的关系，常用于对公网提供公众服务，如Web服务器。配置略。请解释上述划线部分语句的含义?
What refers to the protocols used to determine who goes next on a multi-access channel?(29)A．MAC(medium access control)B．ARP(address resolution protocol)C．NAT(network address translation)D．CIDR(classless interdomain routing)
NAT(Network Address Translation)通过改变数据包的源(目的)(8)地址、源(目的)(9)来实现网络地址转换。 在Linux网关服务器中用iptables命令设置NAT规则。设Linux网关服务器有两个网卡，eth0接内网，eth1接外网。NAT服务配置命令如下：(8)～(11)备选答案： A．POSTROUTING B． OUTPUTC．PREROUTING D．IPE．MAC F．端口号 G．192．168．1．0/24 H． 222．35．40．9/24
Interface ge-0/0/2.0 of your device is attached to the Internet and is configured with an IP address and network mask of 71.33.252.17/24. A Web server with IP address 10.20.20.1 is running an HTTP service on TCP port 8080. The Web server is attached to the ge-0/0/0.0 interface of your device. You must use NAT to make the Web server reachable from the Internet using port translation.Which type of NAT must you configure?（）A. source NAT with address shiftingB. pool-based source NATC. static destination NATD. pool-based destination NAT
A network administrator has configured source NAT, translating to an address that is on a locally connected subnet.The administrator sees the translation working, but traffic does not appear to come back.What is causing the problem?（）A. The host needs to open the telnet port.B. The host needs a route for the translated address.C. The administrator must use a proxy-arp policy for the translated address.D. The administrator must use a security policy, which will allow communication between the zones.
随着Internet迅速发展，公网IP地址短缺已成为一个十分突出的问题。为了解决这一问题，出现了多种解决方案。而使用路由器的NAT/NAPT(Network Address Translation/Network Address Port Translation)功能是其中一种解决方法。如图5-1所示，某企业通过租用ISP的线路(获得的公网IP网段为：218.94.86.0/29，除去两个互联的IP地址)，实现企业的电子商务。其中，有一对外的Web服务器(内网IP地址为192.168.0.100/24)，一OA服务器(内网IP地址为192.168.0.101/24)。以下是本端路由器的配置摘要，请解释其中部分语句的含义(“//”后为注释内容)。version 11.2 //版本!hostname RouterCOM //路由器名称!interface Seria10 //串口0ip address 218.94.86.2 255.255.255.248 //串口0的ip地址ip nat outside (1)!interface FastEthernet 0 //快速以太口0ip address 192.168.0.1 255.255.255.0 //快速以太口0的ip地址ip nat inside (2)!access-list 1 permit 192.168.0.0 0.0.0.255 (3)!ip nat pool natpool 218.94.86.5 218.94.86.6 netmask 255.255.255.248(4)ip nat inside source static 192.168.0.100 218.94.86.3 (5)ip nat inside source statiC 192.168.0.101 218.94.86.4ip nat inside source list 1 pool natpool overload (6)……(略)end
A router that performs Network Address Translation (NAT) is installed between your computer and the Internet.The router fails. You connect the computer directly to the Internet.You need to ensure that the computer is connected to the Internet in the most secure manner possible.What should you do?（）A.AB.BC.CD.D
● 试题五NAT英文全称是"Network Address Translation"，中文意思是"网络地址转换"，它是一个IETF(Internet Engineering Task Force，Internet工程任务组)标准，允许一个整体机构以一个公用IP(Internet Protocol)地址出现在Internet上。顾名思义，它是一种把内部私有网络地址(IP地址)翻译成合法网络IP地址的技术，如图4所示。某公司通过专线上网，申请的合法Internet IP地址段为192．1．1．1～192．1．1．10，使用路由器的NAT功能进行地址转换，具体配置如下：Current configuration：version 11．3no service password-encryptionhostname 2501ip nat pool aaa 192.1.1.2 192.1.1.10 netmask 255.255.255.0ip nat inside source list 1 pool aaainterface Ethernet0ip address 10．1．1．1 255．255．255．0ip nat insideinterface Serial0ip address 192．1．1．1 255．255．255．0ip nat outsideno ip mroute-cachebandwidth 2000no fair-queueclockrate 2000000interface Serial1no ip addressshutdownno ip classlessip route 0.0.0.0.0.0.0.0 Serial0access-list 1 permit 10.1.1.0.0.0.0.255line con 0line aux 0line vty 0 4password ciscoend［问题1］NAT按技术类型分为哪3种转换方式?［问题2］请解释画线部分内容含义?［问题3］此配置中采用了那种转换方式?
In any NAT (network address translation) configuration, what is the Inside Global IP address?() A. The summarized address for all internal subnetted addresses.B. A private IP address assigned to a host on the inside network.C. A registered address that represents an inside host to an outside network.D. A unique IP address used on an internal networkE. Non of the above
Interface ge-0/0/2.0 of your device is attached to the Internet and is configured with an IP address and network mask of 71.33.252.17/24. A Web server with IP address 10.20.20.1 is running an HTTP service on TCP port 8080. The Web server is attached to the ge-0/0/0.0 interface of your device. You must use NAT to make the Web server reachable from the Internet using port translation. Which type of NAT must you configure?（）A、source NAT with address shiftingB、pool-based source NATC、static destination NATD、pool-based destination NAT
A traditional router is better suited than a firewall device for which function？（）A、VPN establishmentB、packet-based forwardingC、stateful packet processingD、Network Address Translation
下面有关NAT的叙述正确的是？（）A、NAT是英文Network Address Translation的缩写，又称地址翻译B、NAT用来实现私有地址与公用网络地址之间的转换C、当内部网络的主机访问外部网络的时候，一定不需要NATD、地址转换的提出为解决IP地址紧张的问题提供了一个有效途径
防火墙一般都具有网络地址转换功能（Network Address Translation，NAT），NAT允许多台计算机使用一个（）连接网络。A、Web浏览器B、IP地址C、代理服务器D、服务器名
In any NAT (network address translation) configuration, what is the Inside Global IP address?（）A、The summarized address for all internal subnetted addresses.B、A private IP address assigned to a host on the inside network.C、A registered address that represents an inside host to an outside network.D、A unique IP address used on an internal networkE、Non of the above
A router that performs Network Address Translation （NAT） is installed between your computer and the Internet. The router fails. You connect the computer directly to the Internet. You need to ensure that the computer is connected to the Internet in the most secure manner possible. What should you do？（）A、Enable the Remote Desktop feature in the System Properties dialog box.B、Configure the network category of your network connection to Public.C、Configure the network category of your network connection to Private.D、Enable the Windows Collaboration Computer Name Registration Service exception in Microsoft Windows Firewall.
Your network contains a server named Server1 that has the Routing role service installed. Server1 has two network connections. One network connection connects to the internal network. The other network connection connects to the Internet.All network connections connected to the internal network use private IP addresses. You install a Web server named Web1. Web1 hosts a secured Web site that only allows connections over TCP port 8281. Web1 is connected to the internal network.You need to ensure that the secure Web site can be accessed from the Internet.What should you do from the Routing and Remote Access console？（）A、Configure Routing Information Protocol (RIP), and then activate authentication on the RIP interface.B、Configure Routing Information Protocol (RIP), and then configure the incoming packet protocol settings on the RIP interface.C、Configure Network Address Translation (NAT), and then add a new service to the NAT interface.D、Configure Network Address Translation (NAT), and then enable the Secure Web Server (HTTPS) service on the NAT interface.
使用NAT技术进行安全防御的好处有（）。A、使用NAT技术后，内网用户访问外网业务的可用性不受影响B、使用NAT技术后，外部人员无法得到内部网络信息C、使用NAT技术后，内外网络被隔断D、使用NAT技术后，可以避免两个内部网络互联时由于地址引起的问题
单选题Interface ge-0/0/2.0 of your device is attached to the Internet and is configured with an IP address andnetwork mask of 71.33.252.17/24. A webserver with IP address 10.20.20.1 isrunning an HTTP service on TCP port 8080. The webserver is attached to the ge-0/0/0.0 interface of yourdevice. You must use NAT to make the webserver reachable from the Internet using port translation.Which type of NAT must you configure？（）Asource NAT with address shiftingBpool-based source NATCstatic destination NATDpool-based destination NAT
单选题In any NAT (network address translation) configuration, what is the Inside Global IP address?（）AThe summarized address for all internal subnetted addresses.BA private IP address assigned to a host on the inside network.CA registered address that represents an inside host to an outside network.DA unique IP address used on an internal networkENon of the above
单选题防火墙一般都具有网络地址转换功能（Network Address Translation，NAT），NAT允许多台计算机使用一个（）连接网络。AWeb浏览器BIP地址C代理服务器D服务器名
单选题A network administrator has configured source NAT, translating to an address that is on a locally connected subnet.The administrator sees the translation working, but traffic does not appear to come back. What is causing the problem?（）AThe host needs to open the telnet port.BThe host needs a route for the translated address.CThe administrator must use a proxy-arp policy for the translated address.DThe administrator must use a security policy, which will allow communication between the zones.
多选题A network administrator receives complaints from the engineering group that an application on one server is not working properly. After further investigation, the administrator determines that source NAT translation is using a different source address after a random number of flows. Which two actions can the administrator take to force the server to use one address?（） (Choose two.)AUse the custom application feature.BConfigure static NAT for the host.CUse port address translation (PAT).DUse the address-persistent option.
单选题Your network contains an Active Directory domain named contoso.com. The domain contains a server named Server1 that runs Windows Server 2012 R2. You create a new inbound rule by using Windows Firewall with Advanced Security. You need to configure the rule to allow Server1 to accept unsolicited inbound packets that are received through a network address translation （NAT） device on the network. Which setting in the rule should you configure？（）AEdge traversalBAuthorized computersCInterface typesDRemote IP address
单选题When should you enable Network Address Translation Transparency (NAT-T) on the Teleworker?（）Awhen a router between the Teleworker router and the head-end VPN router is doing NAT/pNAT and does not support IPSec pass-through Bwhen the Teleworker router itself is doing NAT/pNATCalwaysDnever