1. Data security threats include
A. hardware failure
B. privacy invasion
C. fraudulent manipulation of data
D. All of the above
E. None of the above
2. An operation that will increase the length of a list is
A. Insert
B. Look-up
C. Modify
D. All of the above
E. None of the above
3. In SQL, which command is used to add a column/integrity constraint to a table
A. ADD COLUMN
B. INSERT COLUMN
C. MODIFY TABLE
D. ALTER TABLE
E. None of the above
4. In SQL, which command(s) is(are) used to enable/disable a database trigger?
A. ALTER TRIGGER
B. ALTER DATABASE
C. ALTER TABLE
D. MODIFY TRIGGER
E. All of the above
5. In a relational schema, each tuple is divided into fields called
A. Relations
B. Domains
C. Queries
D. All of the above
E. None of the above
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