美国CPA模拟试题：Business商业坏境（4）

Advantages of a database management system (DBMS) include:

I. Reduced data redundancy and inconsistencies.

II. Inability to expand data fields without affecting application programs.

III. Data accessibility increases the timeliness, effectiveness, and availability of information.

a. I, II, and III.

b. I and III.

c. I and II.

d. II and III.

Explanation

Choice "b" is correct. Both I and III are correct.

Not II, because an advantage of a DBMS includes the ability to expand data fields without affecting application programs; instead, alterations are needed only in the DBMS.