1. Indexes are created to enforce uniqueness on columns and to enable fast retrieval by column values.

A. True
B. False

2. Money is defined in Oracle with the Currency data type.

A. True
B. False

3. The default extension for SQL*Plus is .sql.

A. True
B. False

4. The left-leaning slash tells Oracle to execute whatever statement is in the buffer.

A. True
B. False

5. Oracle maintains a System Change Number (SCN) which is a database-wide value that is incremented by Oracle whenever database changes are made.

A. True
B. False