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MySQL 5.7 Database Administrator

Last Update 14 hours ago Total Questions : 124

The MySQL 5.7 Database Administrator content is now fully updated, with all current exam questions added 14 hours ago. Deciding to include 1z0-888 practice exam questions in your study plan goes far beyond basic test preparation.

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Question # 11

A MySQL server was initialized with separate UNDO tablespaces. Users complain that when they roll back large transactions, the time to process the request takes too long. The DBA would like to move the MySQL InnoDB UNDO tablespace to a solid-state drive (SSD) for better performance. Is this possible and how?

A.

Yes. Shut down the mysqld process, enable the transportable_tablespace option, and move the UNDO directory to the SSD.

B.

Yes. Shut down, copy the UNDO tablespaces to the new location, and change the innodb_undo_directory value in your my.cnf.

C.

No. The UNDO tablespaces must remain on the same file system as the system tablespaces.

D.

No. The sequential write pattern of the UNDO tablespaces is not supported on modern SSD block devices.

Question # 12

Which MySQL utility program should you use to process and sort the Slow Query Log based on query time or average query time?

A.

mysqldumpslow

B.

mysqldump

C.

mysqlaccess

D.

mysqlshow

E.

mysqlslow

Question # 13

Which MySQL utility copies the master instance to a slave instance on the same host?

A.

mysqlfailover

B.

mysqldbcopy

C.

mysqlrplsync

D.

mysqlserverclone

Question # 14

Which two capabilities are granted with the SUPER privilege?

A.

allowing change of the server runtime configuration

B.

allowing a client to shut down the server

C.

allowing client accounts to take over the account of another user

D.

allowing a client to kill other client connections

Question # 15

A MySQL Server has been running an existing application successfully for six months. The my.cnf is adjusted to contain this additional configuration:

The MySQL Server is restarted without error.

What effect will the new configuration have on existing account?

A.

They are not affected by this configuration change.

B.

They all connect via the secure sha256_password algorithm without any configuration change.

C.

They will have their passwords updated on start-up to sha256_password format.

D.

They will have to change their password the next time they login to the server.

Question # 16

You have forgotten the root user account password. You decide to reset the password and execute:

Which additional argument makes this operation safer?

A.

–-old-passwords , to start MySQL to use the old password format while running without the grant tables.

B.

–-reset-grant-tables , to start the server with only the mysql database accessible.

C.

–-read-only , to set all data to read-only except for super users

D.

–-skip-networking , to prohibit access from remote locations

Question # 17

Which three statements correctly describe MySQL InnoDB Cluster? (Choose three.)

A.

The cluster can be operated in multimaster mode with conflict detection for DML statements.

B.

All MySQL client programs and connectors can be used for executing queries.

C.

It provides fully synchronous replication between the nodes.

D.

There is support for automatic failover when one node fails.

E.

The data is automatically shared between the nodes.

F.

Each query will be executed in parallel across the nodes.

Question # 18

You are creating a strategy for backing up MySQL using a cold binary backup. The MySQL instance is a replication master with global transaction identifiers (GTIDs) enabled and it uses Transparent Data Encryption (TDE). Other than the configuration required to make the instance a replication master and enabled GTIDs and TDE, the instance is using all default settings.

The requirements for the backup are:

    It must be possible to rebuild the instance using the backup.

    It must be verified.

    It must allow for a catastrophic hardware failure.

Which four steps must be included in the backup strategy? (Choose four.)

A.

Include the keyring data and/or configuration in the backup.

B.

Restore the backup to a clean MySQL instance.

C.

Copy the backup to a remote host.

D.

Include the MySQL socket file in the backup.

E.

Include the ibtmp1 file in the backup.

F.

Include the relay logs in the backup.

G.

Include the operating system disk encryption key in the backup.

Question # 19

Which statement is true about using Microsoft Windows Cluster as a platform for MySQL?

A.

It relies on the shared disk architecture being visible to both servers.

B.

It is provided by means of IP-level disk replication.

C.

It implements High Availability by using the .NET Connector’s load balancing capabilities.

D.

It is a shared-nothing architecture.

Question # 20

A MySQL instance has this configuration values set:

A transaction involving a single InnoDB INSERT statement commits.

Which list of locations is in the sequence of disk writes for this transaction?

A.

binary log, redo log, doublewrite buffer, and tablespace

B.

redo log, binary log, doublewrite buffer, and tablespace

C.

doublewrite buffer, redo log, tablespace, and binary log

D.

redo log, doublewrite buffer, tablespace, and binary log

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