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Q31. The InnoDB engine has a feature known as clustered indexes. 

Which three statements are true about clustered indexes as used in InnoDB? 

A. A primary key must exist for creation of a clustered index. 

B. A primary key is used as a clustered index. 

C. A clustered index is a grouping of indexes from different tables into a global index for faster searching. 

D. If no indexes exist, a hidden clustered index is generated based on row IDs. 

E. A clustered index provides direct access to a page containing row data. 

F. The first unique index is always used as a clustered index and not a primary key. 

G. A clustered index allows fulltext searching within InnoDB, 

Answer: B,D,G 

Reference: http://dev.mysql.com/doc/refman/5.0/en/innodb-index-types.html 

Q32. A general purpose MySQL instance is configured with the following options: 

-- log-slow-queries -- long-query-time=,0001 -- log-slow-admin-queries -- general-log -- log-bin -- binlog-format=STATEMENT -- innodb-flush-log-at-trx-commit=1 

Which three statements are true? 

A. The General Query Log records more data than the Binary Log. 

B. The binary Log records more data than the General Query Log. 

C. The Slow Query Log records more data than the General Query Log. 

D. The General Query Log records more data than the Slow Query Log. 

E. The Slow Query Log records more data than the Binary Log. 

F. The Binary Log records more data than the Slow Query Log. 

Answer: A,D,E 

Q33. Consider the Mysql Enterprise Audit plugin. 

You are checking user accounts and attempt the following query: 

Mysql> SELECT user, host, plugin FROM mysql.users; 

ERROR 1146 (42S02): Table ‘mysql.users’ doesn’t exist 

Which subset of event attributes would indicate this error in the audit.log file? 

A. NAME=”Query” 

STATUS=”1146” 

SQLTEXT=”select user,host from users”/> 

B. NAME=”Error” 

STATUS=”1146” 

SQLTEXT=”Error 1146 (42S02): Table ‘mysql.users’ doesn’t exist”/> 

C. NAME=”Query” 

STATUS=”1146” 

SQLTEXT=” Error 1146 (42S02): Table ‘mysql.users’ doesn’t exist”/> 

D. NAME=”Error” 

STATUS=”1146” 

SQLTEXT=”select user,host from users”/> 

E. NAME=”Error” 

STATUS=”0” 

SQLTEXT=”Error 1146 (42S02): Table ‘mysql.users’ doesn’t exist”/> 

Answer: C 

Q34. ROW-based replication has stopped working. You investigate the error log file and find the following entries: 

2013-08-27 14:15:47 9056 [ERROR] Slave SQL: Could not execute Delete_rows event on table test.t1; Can’t find record in ‘t1’, Error_code: 1032; handler error 

HA_ERR_KEY_NOT_FOUND; the event’s master log 56_master-bin. 000003, end_log_pos 851, Error_code: 1032 

2013-08-27 14:15:47 9056 [warning] Slave: Can’t find record in ‘t1’ Error_code: 1032 

2013-08-27 14:15:47 9056 [ERROR] Error running query, slave SQL thread aborted. Fix the problem, and restart the slave SQL thread with “SLAVE START”. We stopped at log ‘56_master-bin. 000003’ position 684 

Why did you receive this error? 

A. The slave SQL thread does not have DELETE privileges to execute on test.t1 table.s 

B. The table definition on the slave -litters from the master. 

C. Multi-threaded replication slaves can have temporary errors occurring for cross database updates. 

D. The slave SQL thread attempted to remove a row from the test.t1 table, but the row did not exist. 

Answer: D 

Q35. Following a server crash, the automatic recovery of InnoDB fails. 

How would you begin to manually repair the InnoDB tables? 

A. Start the server with the – innodb_force_recovery option set to a non-zero value. 

B. Start the server as usual, and then execute the REPAIR TABLE command. 

C. Start the server as usual, and then execute the CHECK TABLE command. 

D. Start the server with the – innodb_recover_options option set to FORCE. 

Answer: A 

Q36. The validate_password plugin is loaded and displays the following settings in global variables: 

Mysql> SHOW VARIABLES LIKE ‘validate_password%’; 

When attempting to set your password, you get the following error: 

Mysql> SET PASSWORD = PASSWORD (‘Hoverl@%’); 

ERROR 1819 (HY000): Your password does not satisfy the current policy requirements 

What is the cause of the error? 

A. The password is eight characters long, but needs to exceed validate_password_length to be valid. 

B. All of the MEDIUM password policy requirements have not been honored. 

C. The password matches a substring Hover as a dictionary word. 

D. The password does not match the validate_passoword_number_count requirement. 

E. There is no dictionary file defined, so password validation cannot work as expected. 

Answer: B 

Q37. Which three statements are characteristic of the MEMORY storage engine? 

A. Each table is represented on disk as an.frm file. 

B. Each table has a corresponding.MYI and .MYD file. 

C. It can support foreign keys. 

D. It cannot contain text or BLOB columns. 

E. Table contents are not saved if the server is restarted. 

F. It can support transactions 

Answer: A,D,E 

Q38. You have a server that has very limited memory but has a very large table. 

You will use mysqldump to back up this table. 

Which option will ensure mysqldump will process a row at a time instead of buffering a set of rows? 

A. -- quick 

B. -- skip-buffer 

C. -- single-transaction 

D. -- tab 

Answer: C 

Reference: http://dev.mysql.com/doc/refman/4.1/en/mysqldump.html 

Q39. An existing master-slave setup is currently using a delayed replication of one hour. The master has crashed and the slave must be ”rolled forward” to provide all the latest data. 

The SHOW SLAVE STATUS indicates the following values: 

RELAY_LOG_FILE = hostname-relay-bin.00004 

RELAY_LOG_POS = 1383 

Which command set would make the slave current? 

A. STOP SLAVE; CHANGE MASTER TO MASTER_DELAY=0; START SLAVE; 

B. STOP SLAVE; CHANGE MASTER TO MASTER_DELAY =0, RELAY_LOG_FILE = ‘hostname-relay-bin.00004’ , RELAY_LOG_POS = 1383; 

C. STOP SLAVE; CHANGE MASTER TO RELAY_LOG_FILE = ‘hostname-relay-bin.00004’, RELAY_LOG_POS = 1383; 

D. STOP SLAVE; SET GLOBAL master_delay =0; START SLAVE; 

Answer: A 

Q40. Which hardware storage option, when set up with redundant disks, offers the least stability, availability, and reliability for Mysql data? 

A. RAID 5 

B. iSCSI 

C. SAN (Storage Area Network) 

D. NFS (Networked File System) 

Answer: C 

Q41. The following commands are available in the Linux binary distributions of Mysql: 

Mysqld Mysqld_safe Mysql.server 

What is the correct description of each of these commands? 

A. Mysqld is the server. 

Mysqld_safe is a shell script that invokes mysqld. 

Mysql.server is a wrapper for mysql_safe. 

B. Mysqld is a shell script that starts mysql.server. 

Mysqld_safe causes the server to start up in data recovery mode. 

Mysql.server is the server. 

C. Mysqld is the server. 

Mysqld_safe causes the server to start up in data recovery mode. 

Mysql.server is a wrapper for mysqld_safe. 

D. Mysql, mysqld.safe, and mysql.server reside in different locations but are all symlinked 

to the same script. 

Answer: B 

Q42. Which three data components are needed for point-in-time recovery? 

A. The error log 

B. The backup log 

C. The general query log 

D. Binary logs 

E. The data backup 

F. Configuration files 

Answer: D,E,F 

Q43. Which two are correct steps in taking a binary backup of MyISAM tables? 

A. Always stop the server prior to the backup. 

B. Stop the server or lock the tables prior to the backup. 

C. Stop the server or lock the databases prior to the backup. 

D. Make a copy of the .frm, .myd, and the .myi files. 

E. Make a copy of the binary log and tablespace files. 

Answer: B,D 

Reference: http://dev.mysql.com/doc/refman/5.6/en/backup-methods.html 

Q44. You want to shutdown a running Mysql Server cleanly. 

Which three commands that are valid on either Windows or Linux will achieve this? 

A. Shell> pkill –u mysql mysqld_safe 

B. Shell> service mysql safe_exit 

C. Shell> /etc/init.d/mysql stop 

D. Shell> mysqladmin –u root –p shutdown 

E. Mysql> STOP PROCESS mysqld; 

F. Shell> net stop mysql 

G. Shell> nmc mysql shutdown 

Answer: C,D,E 

Q45. Which two statements are true regarding partitioning in Mysql? 

A. Tables with BLOB and TEXT columns cannot be partitioned. 

B. Partitioning allows easier management of smaller data sets for certain queries. 

C. Partitioning allows different columns to be stored in separate files. 

D. The partitioning expression is an integer or function that returns an integer value or NULL value. 

E. Partitioning is only available for those storage engines that implements it natively. 

Answer: C,D