Online Access Free Oracle.1Z1-888.v2022-02-09.q146 Practice Test (Page 23)

1Z1-888 Exam Question 106

To query two system variables, you execute this statement and get the results shown:

When you execute the following two statements, only the first one succeeds:
SET @@autocommit=0;
SET @@max_connections=200;
Why does the second statement fail?

A.max_connections is a read-only variable that cannot be set dynamically.

B.max_connections must be set at server start in an options file.

C.max_connections is a derived variable that can only be set indirectly.

D.max_connections must be set globally instead of locally.

1Z1-888 Exam Question 107

You are no longer able to log in to an existing MySQL Server because the root password credentials not working. You need to reset the root password to complete various administrative tasks. What are the two major methods that will achieve this?

A.Start the MySQL Server with --skip-grant-tables and execute SQL, which will update the root password.

B.Start the MySQL Server with -initialize-insecure to force a password reset procedure on the command line.

C.Start the MySQL Server in --safe-mode, which only loads the privilege system for changes as data is inaccessible.

D.Start the MySQL Server with --init-file pointing to SQL that executes an ALTER USER statement to change the root user password.

E.Start the MySQL Server with reset-root-password in my.cnf, which will prompt you to enter a new root user password.

1Z1-888 Exam Question 108

Which two methods accurately monitor the size of your total database size over time?

A.monitoring the innodb_redo_log_size variable

B.monitoring the information_schemA.TABLES table

C.monitoring the performance_schema_hosts_size variable

D.monitoring cumulative Innodb_page_size increase

E.monitoring datadir size in the operating system

F.monitoring the Innodb_rows_inserted status variable

1Z1-888 Exam Question 109

What are two benefits of using the --tab option with mysqldump? (Choose two.)

A.The schema and data are automatically dumped to separate files.

B.It can be piped directly into a running server.

C.It can be used together with --all-databases.

D.It is possible to restore the data in parallel.

1Z1-888 Exam Question 110

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

A.The server suspends that INSERT operation until space becomes available.

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

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

D.The server will crash.

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