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MYSQL 1Z0-874 Exam Syllabus Topics:

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

1. Which of the following best describes why one should use VARCHAR rather than CHAR in InnoDB? (Choose two)

A) The average amount of space used will be less.
B) Generally, there will be less disk I/O during processing.
C) VARCHAR columns provide better transaction support.
D) The optimizer always performs better with VARCHAR columns over CHAR columns.

2. Can you have several MySQL servers running on the same computer, using the same InnoDB
tablespace files?

A) Yes, always
B) Yes, provided their permissions are set to read-only
C) No

3. Privileges for using stored routines can be specified at the following levels: (Choose three)

A) Server-wide
B) The ability to use stored procedures is not governed by the privilege system.
C) Per database
D) Per routine

4. Consider the following:
mysql> DESC customers;
+--------+------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+--------+------------------+------+-----+---------+----------------+
| id | int(11) unsigned | NO | PRI | NULL | auto_increment |
| name_1 | char(20) | YES | MUL | NULL | |
| name_2 | varchar(20) | YES | | NULL | |
| name_3 | varchar(20) | YES | | NULL | |
| email | varchar(50) | YES | | NULL | |
+--------+------------------+------+-----+---------+----------------+
mysql> EXPLAIN SELECT * FROM customers WHERE name_1 = 'Johnny'
*************************** 1. row ***************************
id: 1
select_type: SIMPLE
table: customers
type: ref
possible_keys: i_name_1_01,i_name_1_02
key: i_name_1_01
key_len: 21
ref: const
rows: 1
Extra: Using where
What can be assumed by looking at the key_len column?

A) The longest index is 21 characters long.
B) No indexes are being used.
C) The full index is being used.
D) The partial index is being used.

5. Which of the following best describes what the master.info file contains and how it is used? (Choose two)

A) It is used by an administrator to determine what slaves connect to the master, and other information about the master server.
B) It contains information about the master server, its slaves and its configuration.
C) It contains the values from the CHANGE MASTER statement.
D) When the slave restarts it looks for which master to use from this file.

Solutions: