(36）以下关于IPv4和IPv6的说法，错误的是( ）。A） IPv4存在局限性，所以人们开发了IPv6B） IPv6依然沿用了IPv4的核心设计思想C） IPv6在协议格式、地址表示法方面和IPv4是相同的D） IPv6采用了128位地址长度
题目
(36）以下关于IPv4和IPv6的说法，错误的是( ）。
A） IPv4存在局限性，所以人们开发了IPv6
B） IPv6依然沿用了IPv4的核心设计思想
C） IPv6在协议格式、地址表示法方面和IPv4是相同的
D） IPv6采用了128位地址长度
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第1题：
在IPV4和IPV6混合的网络中，协议翻译技术用于（ ）A.两个IPV6主机通过IPV4网络通信
B.两个IPV4主机通过IPV6网络通信
C.纯IPV4主机和纯IPV6主机之间的通信
D.两个双协议栈之间的通信答案：C解析：详见教程（第四版）292页明确指出。 -
第2题：
关于IPV6的描述，错误的是（）
- A、IPV6使用与IPV4不兼容的数据报格式
- B、IPV6使用地址长度为128比特，解决IP地址枯竭问题
- C、IPV6不再支持源端路由选择等原IPV4选项
- D、IPV6基本报头比一般IPV4报头占用更多的字节数
正确答案:C -
第3题：
Which two statements are true about using IPv4 and IPv6 simultaneously on a network segment? （）
- A、IPv6 allows a host to create its own IPv6 address that will allow it to communicate to other devices on a network configured via DHCP. IPv4 does not provide a similar capability for hosts.
- B、IPv6 provides for more host IP addresses but IPv4 provides for more network addresses.
- C、Hosts can be configured to receive both IPv4 and IPv6 addresses via DHCP.
- D、Host configuration options for IPv4 can be either statically assigned or assigned via DHCP.Host configuration options for IPv6 can be statically assigned only.
- E、IPv4 and IPv6 addresses c an be simultaneously assigned to a host but not to a router interface.
正确答案:A,C -
第4题：
基于IPv4隧道的IPv6，将（）数据包封闭在（）数据包中。
- A、IPv6；IPv4
- B、IPv4；IPv6
- C、IPv4；数据链路层
- D、IPv6；数据链路层
正确答案:A -
第5题：
IPv6地址内嵌IPv4地址有两种，分别是（）。
- A、IPv4兼容的IPv6地址
- B、IPv6兼容的IPv4地址
- C、映射IPv6的IPv4地址
- D、映射IPv4的IPv6地址
正确答案:A,D -
第6题：
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
正确答案:A -
第7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？ （）
- A、 Tunnel IPv6 over IPv4 to connect far-end IPv6 networks
- B、 Explain why configuring IPv4 and IPv6 at the same time over the same LAN interface is not possible
- C、 Explain why configuring IPv4 and IPv6 at the same time over the same LAN interface is possible
- D、 What is the meaning of EUI-64 and how does it work？
- E、 Tunnel IPv4 over IPv6 to connect far-end IPv4 networks.
正确答案:A,C,D -
第8题：
Which three approaches can be used while migrating from an IPV4 addressing scheme to an IPV6 scheme?（）
- A、statically map IPV4 address to IPV6 addresses
- B、configuration IPv4 tunnels between IPV6 islands
- C、use DHCPv6 to map IPV4 addresses to IPV6 addresses
- D、use proxying and translation to translate IPV6 packets into IPV4 packets
- E、configure IPV6 directly
- F、enable dual-stack routing
正确答案:A,B,F -
第9题：
IPV4到IPV6的过渡技术不包括（）。
- A、同时使用IPV4和IPV6
- B、IPV6路由协议
- C、IPV6-over-IPV4隧道
- D、DNS设施
正确答案:B -
第10题：
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 networks
BExplain why configuring IPv4 and IPv6 at the same time over the same LAN interface is not possible
CExplain why configuring IPv4 and IPv6 at the same time over the same LAN interface is possible
DWhat is the meaning of EUI-64 and how does it work？
ETunnel IPv4 over IPv6 to connect far-end IPv4 networks.
正确答案： C,D解析： 暂无解析 -
第11题：
多选题Which three approaches can be used while migrating from an IPV4 addressing scheme to an IPV6 scheme？（）Astatically map IPV4 address to IPV6 addresses
Bconfiguration IPv4 tunnels between IPV6 islands
Cuse DHCPv6 to map IPV4 addresses to IPV6 addresses
Duse proxying and translation to translate IPV6 packets into IPV4 packets
Econfigure IPV6 directly
Fenable dual-stack routing
正确答案： D,B解析： 暂无解析 -
第12题：
关于IPV4与IPV6地址说法正确的是: (1.0分) [多选] A. IPV6可以有效的解决全球IPV4地址枯竭的问. B. IPV4地址长度为32位 C. IPV6地址长度为128位 D. IPV4网络与IPV6网络可直接进行通信，不需要过渡技术 E. IPV4网络与IPV6网络之间需要采用过渡技术才能进行通信
答案: A B C E -
第13题：
关于IPv6和IPv4的区别，以下哪些描述是正确的（）
- A、IPv6不支持子网划分
- B、IPv6不支持报文分片
- C、IPv6不支持广播地址
- D、IPv6不支持安全认证
正确答案:A,C -
第14题：
从IPv4迁移到IPv6可以使用哪三种方法？（）
- A、静态映射IPv4地址IPv6地址
- B、IPV6之间配置IPv4隧道
- C、使用DHCPv6来映射IPv4地址IPv6地址
- D、使用代理和翻译翻译IPV6数据包到IPv4数据包
- E、直接配置IPV6
- F、启用双栈路由
正确答案:A,B,F -
第15题：
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.
正确答案:B -
第16题：
隧道技术比较符合当前网络现状（骨干网络是IPv4，IPv6 通过IPv4 连接），所以应用很普遍。
正确答案:正确 -
第17题：
推动IPv6产生的根本原因是？（）
- A、IPv4不好使用
- B、政府推动
- C、IPv6比IPv4更先进
- D、IPv4地址短缺
正确答案:D -
第18题：
运营商级NAT（NAT444）的主要功能是（）。
- A、提供安全保障
- B、提供IPv4到IPv4的地址转换
- C、提供IPv4到IPv6的协议转换
- D、提供IPv6到IPv6的转换
正确答案:B -
第19题：
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 IPv6
- B、IPv4 and IPv6 networks can be routed simultaneously
- C、IPv6 can be routed using the same routing protocol versions as IPv4
- D、A router routing for IPv6 and IPv4 must convert IPv4 packets to IPv6 packets to route them
- E、None of the other alternatives apply
正确答案:B -
第20题：
A client host uses IPv4 to communicate with one ser ver and IPv6 to communicate with another.Which of the following IPv6 coexistence features is likely at work on the host?（）
- A、Native IPv6
- B、Point - to -point tunnels
- C、Multipoint tunnels
- D、NAT - PT
- E、Dual stacks
正确答案:E -
第21题：
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
正确答案:A,D -
第22题：
单选题Company network is implemting IPv6 into their existing IPv4 netwrok. Which statement is trueabout incorporating IPv6 into an already existing IPv4 network？（）AOnly OSPF version 3 can be utilized for routing IPv4 and IPv6
BIPv4 and IPv6 networks can be routed simultaneously
CIPv6 can be routed using the same routing protocol versions as IPv4
DA router routing for IPv6 and IPv4 must convert IPv4 packets to IPv6 packets to route them
ENone of the other alternatives apply
正确答案： B解析： 暂无解析 -
第23题：
判断题IPV4采用32位地址长度，而IPV6则采用128位地址长度，所以IPV6协议是IPV4可容纳的入网终端的4倍。A对
B错
正确答案： 对解析： 暂无解析