问题
单项选择题
The major technical areas of computer security are usually represented by the initials CIA: (66) , integrity, and authentication or availability.
A．confidentiality
B．confident
C．secret
D．safety
答案
参考答案：A
解析：confidentiality意为“机密性，保密性”。本题主要考查计算机安全的技术知识。