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【单选题】
听力原文: Attacks and clashes in Indian Kashmir have killed nine people and wounded more than fifty others. The first two victims were killed in the main city of Srinagar when a bomb hidden in a handcar exploded. Twenty- eight people were wounded. Hours later, in the town of Anantnag, separatist militants threw a grenade at troops, wounding at least twenty-four people. In the south, one policeman was killed and two others were wounded when militants attacked a police post. In the north, three soldiers and three rebels were killed in a gun battle. Thousands of people have died in the last fifteen years since Muslim rebels launched an armed insurgency against Indian-rule in Kashmir. How many attacks and clashes were reported in this news?
A.
2.
B.
3.
C.
4.
D.
5.
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【简答题】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
【单选题】上门推销拜访前的准备不包括(     )
A.
拒绝问题演练好
B.
时间路线安排好
C.
对顾客一视同仁
D.
资料、工具准备好
【单选题】哪项特征描述的是 IPv6 相比于 IPv4 的增强功能?
A.
IPv4 和 IPv6 都支持身份验证,但只有 IPv6 支持隐私保护功能。
B.
IPv6 地址基于 128 位平面编址,而 IPv4 基于 32 位分层编址。
C.
IPv6 报头比 IPv4 报头简单,增强了数据包处理。
D.
IPv6 的地址空间比 IPv4 的地址空间大四倍。
【单选题】哪项特征描述的是 IPv6 相比于 IPv4 的增强功能?
A.
IPv6 地址基于 128 位平面编址,而 IPv4 基于 32 位分层编址。
B.
IPv6 报头比 IPv4 报头简单,增强了数据包处理。
C.
IPv4 和 IPv6 都支持身份验证,但只有 IPv6 支持隐私保护功能。
D.
IPv6 的地址空间比 IPv4 的地址空间大四倍。
【单选题】IPV4升级到IPV6哪一层发送改变
A.
物理
B.
链路层
C.
网络层
D.
应用层
【单选题】In the description of IPv4 address and IPv6 address, the correct one is ().
A.
IPv4 address and IPv6 address are 32 bits
B.
IPv4 address is 32 bits, IPv6 address is 128 bits
C.
IPv4 address and IPv6 address are 128 bits
D.
IPv4 address is 128 bits and IPv6 address is 32 bits
【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?()
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
【简答题】钢的热处理是通过例在固态合金下的( )、( )和( ),改变钢的内部组织,从改变其性能的工艺方法。
【判断题】加入大量电解质,能使高分子化合物从溶液中析出的原因是破坏了胶粒的水化膜。
A.
正确
B.
错误
【多选题】关于IPV4于IPV6地址说法正确的是()
A.
IPV4地址长度为32位
B.
IPV6地址长度为位
C.
IPV4网络于IPV6网络可直接进行通信,不需要过渡
D.
IPV4网络于IPV6网络之间需要采用过渡技术才能进行通信
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