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Questions # 11:

In which order does MySQL process an incoming INSERT statement?

Options:

A.

It checks whether the user is authorized to perform the query, writes to the binary log, and then optimizes it.

B.

It checks whether the user is authorized to perform the query, optimizes it, and then writes to the binary log.

C.

It writes the query to the binary log, optimizes it, and then checks whether the user is authorized to perform the query.

D.

It optimizes the query, checks whether the user is authorized to perform it, and then writes to the binary log.

Questions # 12:

Suppose you are adding rows to a MyISAM table and the --datadir location runs out of disk space. What will happen when this occurs?

Options:

A.

The server will crash.

B.

The server suspends that INSERT operation until space becomes available.

C.

An error message will be returned to the client .Server Error: ER_IO

D.

The server suspends operations for all storage engines until space becomes available.

Questions # 13:

You have successfully provisioned the latest MySQL 5.7 database instance on a physical host, to be added to an existing farm for use in a modern, high volume, ACID-compliant, OLTP website, which serves hundreds of DML transactions per second.

The default values of which two key variables do you change to ensure seamless operation of the database? (Choose two.)

Options:

A.

Key Buffer Size

B.

InnoDB Redo Log Size

C.

Binary Log Size

D.

Buffer Pool Size

E.

Sort Buffer size

F.

Query Cache Size

Questions # 14:

Why should you be selective when granting the PROCESS privilege to an account?

Options:

A.

It allows a client to process scripts.

B.

It allows the use of stored routines.

C.

It allows a client to see another user’s queries with the SHOW PROCESSLIST command.

D.

It allows a client to control running processes on a server.

Questions # 15:

Multiversion Concurrency Control (MVCC) enables what type of backup?

Options:

A.

Hot

B.

Binary

C.

Logical

D.

Incremental

Questions # 16:

Which storage option for MySQL data directory typically offers the worst performance in a highly concurrent, OLTP-heavy, IO-bound workload?

Options:

A.

battery-backed locally-attached RAID 5 array

B.

iSCSI Lun

C.

SAN (Fibre Channel) Lun

D.

NFS (Networked File System) mount

Questions # 17:

You have created a new user with this statement:

CREATE USER ‘erika’@’localhost’ IDENTIFIED BY ‘first#1Pass’ PASSWORD EXPIRE;

What is the outcome?

Options:

A.

When ‘erika’@’localhost’ tries to log in with the MySQL command-line client, the user will have to change the password before seeing the mysql> prompt.

B.

When ‘erika’@’localhost’ tries to log in with the MySQL command-line client, the user will not be permitted to log in because the password is expired.

C.

When ‘erika’@’localhost’ tries to log in with the MySQL command-line client, the user will be permitted to log in but will not be able to issue ant statements until the user changes the password.

D.

You receive a syntax error that indicates that you cannot set a password and expire it at the same time.

Questions # 18:

Consider the join_buffer_size parameter in MySQL Server.

Which two statements are true about the join buffer? (Choose two.)

Options:

A.

The value should be increased if the client performs several SELECT operations.

B.

The join buffer is set per connection.

C.

The join buffer is used to process sorts when complex joins are being performed.

D.

The value should be increased from the default if the query joins large rows without using an index.

E.

The join buffer is global and can be changed only by restarting the server.

Questions # 19:

Which three are key advantages of standard MySQL replication? (Choose three.)

Options:

A.

supports native automatic failover

B.

enables automatic resync of databases when discrepancies are detected

C.

provides arbitrary geographic redundancy with minimal overhead to master

D.

synchronously guarantees identical slave copy

E.

is easy to configure and has low performance overhead

F.

can easily add slaves for read scaling

Questions # 20:

The MySQL installation includes the mysql_config_editor utility for managing login paths stored in a .mylogin.cnf file.

Which two are true about the login path feature? (Choose two.)

Options:

A.

mysql_config_editor is the only MySQL-provided utility that can print the values stored in .mylogin.cnf.

B.

A .mylogin.cnf file can store at most one login path.

C.

It provides a FIPS-compliant keyring for storing MySQL login details.

D.

A .mylogin.cnf file can be edited using a text editor, such as vim or Notepad++.

E.

It is an alternative to storing the MySQL login details in a my.cnf file.

F.

It provides means to help avoid accidentally exposing the MySQL login details.

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