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IPv6先对IPv4有哪些优势？
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有关IPv6双栈技术的规划,下面哪些描述是正确的()。
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Which statement describes the difference between a manually configured IPv6 in IPv4 tunnel versus an automatic 6to4 tunnel?()
A. An automatic 6to4 tunnel does not req uire dual - stack (IPv4 and IPv6) routers at the tunnel endpoints.B. An automatic 6to4 tunnel allows multiple IPv4 destinations.C. A manually configured IPv6 in IPv4 tunnel allows multiple IPv4 destinations.D. A manually configured IPv6 in IPv4 tunnel does not require dual- stack (IPv4 and IPv6) routers at the tunnel endpoints.
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Which three approaches can be used while migrating from an IPV4 addressing scheme to an IPV6 scheme.()
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每台访问互联网的电脑，都需要配备lP 地址，传统的IP 地址（IPv4）由32 个二进制位构成。IPv6是IPv4 的下一代版本，其地址由128 个二进制位构成。国家发改委《关于开展国家下一代互联网示范城市建设工作的通知》要求，要加快IPv6 用户的普及率和网络接入覆盖率。针对国家发改委的这一要求，下列关于IPv6 优势的说法最准确的是（ ）。A.IPv6 比IPv4 更便于记忆
B. IPv6 比IPv4 提供更多的lP 地址
C. IPv6 比IPv4 价格更低廉，配置更方便
D. IPv6 比IPv4 更容易普及推广
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Which statement describes the difference between a manually configured IPv6 in IPv4 tunnel versus an automatic 6to4 tunnel?（）A、An automatic 6to4 tunnel does not req uire dual - stack (IPv4 and IPv6) routers at the tunnel endpoints.B、An automatic 6to4 tunnel allows multiple IPv4 destinations.C、A manually configured IPv6 in IPv4 tunnel allows multiple IPv4 destinations.D、A manually configured IPv6 in IPv4 tunnel does not require dual- stack (IPv4 and IPv6) routers at the tunnel endpoints.
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有关IPv6 双栈技术的规划，下面哪些描述是正确的（） A、 网络中需同时启用IPv4 及IPv6 两种路由协议B、 网络中的设备需同时规划IPv4 及IPv6 两种地址C、 一部分主机有IPv4 地址，一部分主机有IPv6 地址，二者通过NAT-PT 互通D、 网络中的IPv6 数据流与IPv4 数据流尽量能够有不同的转发路径
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对IPv6与IPv4的关系，下列描述正确的是（）A、IPv6继承了IPv4的优点，摒弃了它的缺点，并有明显改进B、IPv4网络只需简单地更换协议栈就可以升级为IPv6网络C、IPv6t和IPv4不兼容D、运行于IPv4上的TCP和UDP协议也必须升级才能在IPv6上运行
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Company network is implemting IPv6 into their existing IPv4 netwrok. Which statement is trueabout incorporating IPv6 into an already existing IPv4 network？（）A、Only OSPF version 3 can be utilized for routing IPv4 and IPv6B、IPv4 and IPv6 networks can be routed simultaneouslyC、IPv6 can be routed using the same routing protocol versions as IPv4D、A router routing for IPv6 and IPv4 must convert IPv4 packets to IPv6 packets to route themE、None of the other alternatives apply
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Which three approaches can be used while migrating from an IPV4 addressing scheme to an IPV6 scheme?（）A、statically map IPV4 address to IPV6 addressesB、configuration IPv4 tunnels between IPV6 islandsC、use DHCPv6 to map IPV4 addresses to IPV6 addressesD、use proxying and translation to translate IPV6 packets into IPV4 packetsE、configure IPV6 directlyF、enable dual-stack routing
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IPV6与IPV4的首部比较，下列说法错误的是（）。A、IPV6与IPV4的版本相同B、IPV4的首部长度在IPV6中取消了C、IPV4的协议在IPV6中被取消D、IPV4中的源地址、目的地址在IPV6中由32位变成了64位111
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多选题Your company is researching a new application that runs over IPv6， but part of it must still have IPv4 support. Your company uses a traditional IPv4 network. Your plan is not to run IPv6 over the whole network， but to segment parts of the network or even to operate simultaneously with IPv6 and IPv4. You must make a brief presentation about IPv6 technology to the board of technical directors. Which three of these items could be part of your presentation？ （）ATunnel IPv6 over IPv4 to connect far-end IPv6 networksBExplain why configuring IPv4 and IPv6 at the same time over the same LAN interface is not possibleCExplain why configuring IPv4 and IPv6 at the same time over the same LAN interface is possibleDWhat is the meaning of EUI-64 and how does it work？ETunnel IPv4 over IPv6 to connect far-end IPv4 networks.
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问答题IPv6主要解决了IPv4地址资源不足以及服务质量不高的问题。与IPv4相比优势主要集中在以下几个方面
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