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

1. Which of the following best describes what you might expect after disabling InnoDB at run time?

A) It will disable InnoDBs associated memory buffers and data structures, which will save memory.
B) It will disable InnoDBs associated memory buffers and data structures, however it will not save any memory.
C) It will still enable InnoDBs associated memory buffers and data structures, however it will save memory.

2. Which of the following disk characteristics are most important to a database server and why?

A) Transfer rate, because the database needs to be able to transfer the data off the disks at a very high rate.
B) Disk seek time, because it is more important for the heads of the disk to move quickly from track to track.
C) Disk size, because a database needs a lot of storage space.

3. Is the following statement true or false? The username you use to connect to MySQL must be the same as the login used to access the operating system.

A) True
B) False

4. Is it possible to force the join order in a query, and if so how?

A) Yes it is possible simply list the tables in the desired order in your SELECT.
B) No, it is not possible.
C) Yes it is possible use SELECT FORCE_JOIN rather than just SELECT, then list the tables in the desired order.
D) Yes it is possible, use SELECT STRAIGHT_JOIN rather than just SELECT, the list the tables in the desired order.

5. Which of the following best describes the purpose of the record buffer (as controlled through the read_buffer_size variable), and how it is set? (Choose two)

A) The record buffer is used for operations such as ORDER BY or GROUP BY.
B) The record buffer is used to perform sequential table scans, reducing the number of reads from disk
C) The record buffer is set per connection.
D) The record buffer is global and is only set by restarting the server.

Solutions: