Most Recent Oracle 1Z0-888 Exam Dumps

Prepare for the Oracle MySQL 5.7 Database Administrator exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.

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The questions for 1Z0-888 were last updated on Jun 4, 2026.

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Question No. 1

Which statement is correct about how InnoDB storage engine uses disk space?

AIt stores data in .MYD files and its index and undo information in the common tablespace.

BIt stores data in .MYD files, index information in .MYI files, and undo information the common tablespace.

CIt stores its data in tablespace file(s). Index and data dictionary details are stored in .FRM files.

DIt stores its data, index and undo information in .MYD and .MYI files.

EIt stores data, index and undo information in tablespace file(s).

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Correct Answer: E

Question No. 2

Consider the table people with this definition:

The application uses a query such as:

SELECT * FROM people WHERE YEAR(Birthday) = 1980;

The query is not using an index.

Which two methods can be used to allow the query to use an index? (Choose two.)

AChange the WHERE clause to Birthday BETWEEN 1980-01-01 AND 1980-12-31.

BAdd a functional index for YEAR(Birthday).

CExecute ANALYZE TABLE to update the index statistics.

DAdd a generated column calculating YEAR(Birthday) and index that column.

EAdd FORCE INDEX (Birthday) to the query.

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Correct Answer: A, E

Question No. 3

You are contacted by a user who does not have permission to access a database table. You determine after investigation that this user should be permitted to have access and so you execute a GRANT statement to enable the user to access the table.

Which statement describes the activation of that access for the user?

AThe access does not take effect until the user logs out and back in.

BThe access does not take effect until the next time the server is started.

CThe access is available immediately.

DThe access does not take effect until you issue the FLUSH PRIVILEGES statement.

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Correct Answer: C

Question No. 4

There are multiple instances of MySQL Server running on a single OS that is backed up using the mysqlbackup command.

The /etc/my/cnf contains default values, for example, datadir=/var/lib/mysql/, with extra instances having their own separate my.cnf file (for example /etc/mysql/instanceN.cnf) overriding the defaults.

A restore of the second instance is attempted from the mysqlbackup archive using this command:

mysqlbackup --backup-dir=/opt/backup/mysql/instance2 copy-back

Upon starting the second MySQL instance, you notice that the data does not match the expected backup. Which command-line option is required to successfully update the second instance?

A--restore=2

B--copy-back-from-log

C--backup-instance=/var/lib/mysql/instance2

D--instance=/var/lib/mysql/instance2

E--defaults-file=/etc/mysql/instance2.cnf

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Correct Answer: E

Question No. 5

Which two statements are true about InnoDB auto-increment locking? (Choose two.)

AInnoDB never uses table-level locks.

BInnoDB always protects auto-increment updates with a table-level lock

CInnoDB does not use locks to enforce auto-increment uniqueness.

DThe auto-increment lock can be a table-level lock.

ESome settings for innodb_autoinc_lock_mode can help reduce locking.

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Correct Answer: D, E

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