For any information system to serve its purpose, the information must be( )when it is needed.A.integralB.available C.irreplaceable D.confidential
For any information system to serve its purpose, the information must be( )when it is needed.
A.integral
B.available
C.irreplaceable
D.confidential
B.available
C.irreplaceable
D.confidential
参考解析
解析：任何信息系统为了达到其目的，当需要时信息都必须具备可用性。A．完整的B．可用的C．不可替代的D．可信的
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