Free Oracle 1z1-883 Exam Dumps Questions & Answers

You adjust a default configuration to the following /etc/my.cnf on a Linux installation:
[mysqld] Loq-bin Binrylog_format=ROW
You do not notice the spelling error in binrylog_format and restart your production server.
How does the MySQL server behave with incorrectly spelled options?

• A.Mysqld prints to the error log about an unknown variable, and then exits.
• B.The mysqld_safe script skips the unknown variable and starts using the remaining configuration changes.
• C.When using mysql_config_editor for configuration adjustments, it detects incorrect syntax and typing mistakes.
• D.Mysqld uses internal configuration versioning and reverts to the previous configuration.

Full Atomicity, Consistency, Isolation, Durability (ACID) compliance is a necessity for a new application, which heavily reads and writes data.
This requires the following config file options:
Sync_binlog=1 Innodb_flush_log_at_trx_commit=1
Innodb_doublewrite=1
However, this configuration is expected to introduce disk I/O overhead.
What three changes will reduce disk I/O overheads?

• A.Use of separate directories on the same physical disk for log files and data files
• B.Placement of InnoDB log files and datadir on separate physical disks
• C.Allocation of RAM to the buffer pool such that more of the data can fit in RAM
• D.Use of soft links for database directories on the same physical disk
• E.Use of delay_key_write=ON for batch index update

Which three statements describe how the strict SQL mode provides added security?

• A.It rejects queries that produce out-of-range values.
• B.It rejects dates with zero day or month values.
• C.It rejects statements that try to insert out-of-range values
• D.It limits the operations that the server can perform.
• E.It rejects invalid dates.

Which three statements are characteristic of the MEMORY storage engine?

• A.Each table has a corresponding.MYI and .MYD file.
• B.Each table is represented on disk as an.frm file.
• C.It cannot contain text or BLOB columns.
• D.Table contents are not saved if the server is restarted.
• E.It can support foreign keys.
• F.It can support transactions

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.Mysql, mysqld.safe, and mysql.server reside in different locations but are all symlinked to the
  same script.
• B.Mysqld is the server.
  Mysqld_safe is a shell script that invokes mysqld.
  Mysql.server is a wrapper for mysql_safe.
• 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.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.