赞题库-背景图

单项选择题

下列选项中， (59) 不是SNMPv2的SMI引入的关键概念。

A．访问控制
B．对象的定义
C．概念表
D．通知的定义

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单项选择题A. cracker B. user C. customer D. client

As administrators seek to block dangerous email attachments through the recognition of well- known (69) , virus writers use other extensions to circumvent such protection. Executable (.exe) files are renamed to . bat and . cnd plus a whole list of other extensions and will still run and successfully infect target users. Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the (70) access to your network.

单项选择题我国的国家标准由 (67) 批准发布。

A．国务院
B．科技部
C．国家质量监督检验检疫局
D．信息产业部