【2026年最新】MySQL 5.7 1z0-888 (最新真题)（1Z0 888）

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Is it true that binary backups always take less space than text backups?[1分]

You want to create the first configuration file for a new installation of MySQL.
· You will start mysqld manually (not automate it to start when the host machine starts or execute as a service).
· You will stop mysqld using mysqladmin.
· You will interact with mysqld by using only the command-line client mysql.
Which option identified a maximal set of sections where you can put the “max_allowed_packet=16M” parameter without creating a
Problem?[1分]

Host slave 1 has ip address 192.0.2.10.

Host slave 2 has ip address 203.0.113.50

Examine these commands:

Shell> mysql_config_editor print --all

[slave1]

Host = slave1.exampledomain.com

User=robert

[slave2]

Host = slave2.exampledomain.com

User=karen

Shell> mysql --login-path=slave1 --host=192.0.2.10 --user=robert -p

Enter password:

ERROR 1045 (28000) : Access denied for user 'robert'@'192.0.2.10' (using password: YES)

Why did this error occur?[1分]

Suppose you are adding rows to a MyISAM table and the --datadir location runs out of disk space.
What will happen when this occurs?[1分]

A MySQL instance has this configuration values set:
--innodb-doublewrite=ON
--innodb-flush-log-at-trx-commit=1
--sync-binlog=1
A transaction involving a single InnoDB INSERT statement commits.
Which list of location is in the sequence of disk writes for this transaction?[1分]

An employee cannot access the company database. You check the connection variables:

（含图）

What is a valid explanation for why one of the users is unable to connect to the database?[1分]

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 these values:
ݯRELAY_LOG_FILE=hostname-relay-bin.00004
ݯRELAY_LOG_POS=1383
Which command set would make the slave current?[1分]

Which storage option for MySQL data directory typically offers the worst performance in a highly concurrent, OLTP-heavy, IO-bound workload?[1分]

Consider:

（含图）

Which statement best describes the meaning of the value for the key_len column?[1分]

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?[1分]

You have just executed a manual backup by using this command: mysqlbackup - u root -p --socket=/tmp/my.sock --backup-dir=/my/backup/backup The operation completed without error.
What is the state of this backup and operation required before it is ready to be restored?[1分]

You are installing MySQL Server 5.7 from a tarball package. You have already set up the correct PATH environment variable and configured your /etc/my.cnf file.
Which command will correctly prepare a data directory?[1分]

You need to dump the data from the master server and import it into a new slave server
Which mysqldump option can be used when dumping data from the master server in order to include the master server’s binary log
Information?[1分]

（含图）

All mentioned paths are accessible to the account that you are currently using. Assume that any other options mentioned in either file are valid and legal option definitions.

You start an instance by using this command line:

Mysqld --defaults-file=/myfolder/my.cnf --defaults-extra- file=/myfolder2/my.cnf What is the outcome?[1分]

This output is from a SHOW SLAVE STATUS:

（含图）

What would cause the SQL_Delay variable to have a value of 360?[1分]

You have taken a Logical Volume Manager (LVM) snapshot backup of a volume that contains the My SQL data directory Why is it important to remove snapshots after completing a raw backup in this way?[1分]

Which statement describes how the relay log works?[1分]

You have issued this statement:
GRANT PROXY ON 'a' FOR 'b';
When user account 'b' issues a query, the query returns an access denied error. What could have caused that error?[1分]

This output is from a SHOW SLAVE STATUS:

（含图）

What would cause the SQL_Delay variable to have a value of 360?[1分]

Given these table definitions and the explain plan:

（含图）

Which ALTER TABLE statement will improve the performance of the query?[1分]