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MYSQL MySQL 5.0 Database Administrator Certified Professional Exam, Part I Sample Questions:

1. Which of the following steps describe how to do a proper binary backup of InnoDB data?

A) Stop the server prior to the backup
B) Make a copy of the .frm files.
C) Stop the server or lock the tables prior to the backup
D) Make a copy of any InnoDB configuration options.
E) Make a copy of the InnoDB log and tablespace files.
F) Make a copy of the .MYD and .MYI files.

2. When working with the InnoDB engine, which of the following correctly defines the READ
UNCOMMITTED isolation level?

A) It allows a transaction to only see its uncommitted changes.
B) It allows a transaction to see committed changes made by other transactions.
C) It allows a transaction to see uncommitted changes made by other transactions.
D) It allows a transaction to see both committed/uncommitted changes made by other transactions.

3. MySQL is a multi-threaded database server. Every connection to the database server is handled by it's own thread.

A) True
B) False

4. The CHECK TABLE command should be used...

A) To make sure a table has no structural problems.
B) To repair table structure problems.
C) To make sure that no table data are corrupted.
D) to improve performance by updating index distribution statistics on InnoDB tables.
E) To find out why a query takes a long time to execute on a given table.

5. When choosing a storage engine for each of your tables, which things are to consider?

A) Locking Characteristics: Some storage engines lock on row level, some on page level, some on table level.
B) Transactions support: Some storage engines support transactions, some don't.
C) Storage media: Some storage engines store data on disk, some in memory.
D) Backup methods: Some storage engines support online backup and point in time recovery, some don't.
E) Licenses: Some storage engines cannot be used in commercial environments, others can.

Solutions: