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

1. Consider the following:
mysql> EXPLAIN SELECT * FROM City WHERE Name = 'Jacksonville' AND CountryCode =
'USA'
*************************** 1. row ***************************
id: 1
select_type: SIMPLE
table: City
type: ref
possible_keys: name_country_index
key: name_country_index
key_len: 13
ref: const,const
rows: 1
Extra: Using where
Which of thefollowing best describes the meaning of the value for the key_len column?

A) It shows how many results will be returned.
B) It shows how big the indexes are.
C) It shows how many columns are examined.
D) It shows how many bytes will be used from index rows.

2. Which of the following statements are true regarding the structure of grant tables in new distributions?

A) They remain the same for backwards compatibility.
B) They are often changed.
C) They change with every upgrade.

3. Which of the following are reasons to be selective when granting the FILE privilege to accounts? (Choose two)

A) It could be used to execute scripts on the server host.
B) It could be used to write files to the filesystem of the server host.
C) It could be used to read files on the filesystem of the server host.

4. What should you do in order to enhance the security of a standard MySQL installation on Unixtype operating systems?

A) Nothing; by default the security level of a MySQL installation is very high
B) Disable the mysql_access program
C) Run the mysql_secure_installation script

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

Solutions: