Free Access Oracle.1Z1-888.v2022-09-10.q127 Practice Test (Page 2)

Question 1

You have a MySQL instance with the following variables in the /etc/my.cnf file:

You issue these statements:
USE prices;
UPDATE sales.january SET amount=amount+1000;
An hour after excluding the statements, you realize that you made a mistake and you want to go to the binary log and look at the statements again.
Which statement is true? (Choose two.)

A.Nothing is logged because you are executing an UPDATE statement that will cause changes to more than one row, and you do not have the --binlog-format value set to STATEMENT.

B.The changes caused by the UPDATE statement are logged to the binary log because the instance is using --binlog-format = ROW

C.You would receive an error on the statement because you cannot update a different database that what is specified with the USE statement.

D.Nothing was written to the binary log because you cannot perform a calculation in a query without enclosing the statement in single quotation marks.

E.The statement would fail because you cannot update more than one row at a time when using --binlog-format = ROW.

Question 2

When you examine a new MySQL installation with default configuration, you find a file called ibdata1 in the database directory. Which two statements are true about this file?

A.it contains the binary log.

B.it contains a general tablespace.

C.it is the default location for all new tables that you create.

D.it contains the undo log.

E.it contains the system tablespace.

F.it contains the redo log.

Question 3

Which three are key advantages of standard MySQL replication? (Choose three.)

A.supports native automatic failover

B.is easy to configure and has low performance overhead

C.provides arbitrary geographic redundancy with minimal overhead to master

D.synchronously guarantees identical slave copy

E.enables automatic resync of databases when discrepancies are detected

F.can easily add slaves for read scaling

Question 4

You have just created a replication slave from a backup of the master made with mysqldump:

You try to log in to the slave with the application user, but fail as follows:

The login works on the master.
Which two changes to the process can fix the issue?

A.Add a second dump for the `mysql' database; --all-databases does not include it.

B.Use the -flush-privileges with mysqldump.

C.Use the -grants option to include GRANT statements in the dump.

D.After the restore, log in to the database and execute FLUSH PRIVILEGES.

Question 5

While attempting to set up a new replication slave on host `192.168.0.25' with the user `replication', you encounter this error:

What should you do to resolve this error?

A.Add the user [email protected] with the correct password to the master.

B.Edit the DNS table on the master to include the domain name for the IP address of 192.168.0.25.

C.Add the user [email protected] with the correct password to the slave.

D.Edit the my.ini file on the slave so that the master-host variable is equal to the IP address of the master, and restart the slave.

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