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

1. Assuming that the account 'joe'@'%' does not already exist on the server, executing the statement
mysql> CREATE USER 'joe'@'%' IDENTIFIED BY 'sakila' will have the following consequences:

A) The account 'joe'@'%' is created on the server. Clients may connect to the server using this account, but will not be able to access any databases, tables or stored routines
B) Nothing; there is no such command as CREATE USER
C) The account 'joe'@'%' is created on the server. Clients may connect to the server using this account and execute stored routines, but will not be able to access any databases or tables
D) The account 'joe'@'%' is created on the server. However, clients cannot connect using this account until further privileges have been assigned to the account.

2. Which of the following statements are true regarding the slow query log? (Choose four)

A) The slow query log will contain queries that take more than 10 seconds.
B) You can use the SHOW SLOW QUERIES statement to display all entries in the slow queries log.
C) The slow query log can be switched on with the log_slow_queries option.
D) To have the slow query log contain queries that don't utilize any index, the log-queriesnotusingindexes option needs to be set.
E) The slow query log contains queries that don't utilize any index.
F) The slow query log is always enabled.
G) The slow query log will contain queries that take more seconds than configured in the long_query_time option.
H) You can use the mysqldumpslow command line tool to summarize the content of the slow query log.

3. Which of the following statements best describe the key buffer? (Choose two)

A) It caches index blocks for MyISAM tables only.
B) It is a global buffer.
C) It caches index blocks for InnoDB tables only.
D) It is set on a per-connection basis.
E) It caches index blocks for all storage engine tables.

4. When creating a new user account, which of the following are valid ways of specifying the hostname part of the account? (Choose six)

A) Using an IP number with wildcards, as 100.160.1.%
B) Leaving it unspecified, allowing connections from any host
C) Using a hostname, such as agric.comp1.com
D) Using localhost
E) User accounts do not contain a hostname part
F) Using a hostname pattern with wildcards, such as %.comp1.com
G) Using an IP address, such as 100.160.1.47
H) Using an IP number/netmask combination such as 100.160.0.0/255.255.0.0

5. Suppose the key column of an EXPLAIN output is NULL. What does this mean?

A) There are no indexes available for use in the query.
B) There are no indexes considered useful for processing that query.
C) There are no indexes on the table you are querying.

Solutions: