首页/ 题库 / [单选题]密码学的目的是( )。的答案

密码学的目的是( )。

单选题
2021-09-06 21:16
A、研究数据加密
B、研究数据解密
C、研究数据保密
D、研究信息安全
查看答案

正确答案
C

试题解析

感兴趣题目
()shall be liable for loss of and damage to the Vessel and/or goods arising or resulting from inaccuracies in stating the description,quantity,weight,measurement or contents.
Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo,without the authorization or privity of the Shipowner or his agent,is().
(), or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.
A salvor may be()the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.
The () is used for hauling in or letting out the wires or ropes.
Vessels must be()valid certificate of nationality or certificated of registry or license.
When loading or discharging dry mud or cement,crew members should use goggles and().
Effects which are dutiable or subject to prohibitions or restrictions should be declared in ().
逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
密码技术是结合()、()和电子与通信等诸多学科于一身的交叉学科,是保护信息安全的主要技术手段之一。
网络信息安全是一门涉及计算机科学、网络技术、通信技术、密码技术、应用数学、数论、信息论等多种学科的综合性学科。
逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
相关题目
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

指令ORS功能,可实现多个指令块的“与”运算。
Logistic回归系数与优势比OR的关系为()。
检索式“转基因食品 or 安全”的基本含义是( )
检索式“转基因食品 or 安全”不包括的含义是( )
在500名病例与500名对照的匹配病例对照研究中,有400名病例与100名对照具有暴露史。据此资料,计算OR值为()
信息安全是一门涉及计算机科学、网络技术、通信技术、()、数论、信息论等多种学科的综合性学科。
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
已知A=40;B=30;C=100;D=50,逻辑“与”运算符为and,“或”运算符为or,“非”运算符为not。计算表达式(A>B+20)or(B+60<>
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
数据库技术是现代信息科学与技术的重要组成部分,是计算机数据处理与信息管理系统的核心。
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire,()the claimant proves that the fire arose from fault or neglect on the part of the carrier,his servants or agents.
Shutdown price(or point,or rule) 停业价格(或停业点、停业原则)
信息处理技术员考生信息库中,具有“准考证号”、“姓名”、“笔试成绩”与“机考成绩”等字段。按“笔试成绩>0 and机考成绩>0”查询,有r1人;按“笔试成绩>0 or机考成绩>0”查询,有r2人,则必然有关系(69)。
翻译:With Average or With Particular Average(WA or WPA)()
ANB指令是()指令,ORB是()指令,与and、or指令不同。
广告位招租WX:84302438

免费的网站请分享给朋友吧