Free Access Oracle.1Z0-888.v2022-04-28.q136 Practice Test (Page 4)

Question 11

Consider the index information for the dept_emptable in the employee's schema:

Which two conclusions can be made based on the output of the query?

A.There is a redundant index on the dept_nocolumn.

B.There are three indexes on the table.

C.There is a redundant index on the emp_nocolumn.

D.The values on the emp_nocolumn must be unique.

E.The selectivity of the dept_nocolumn is the best of the indexed columns.

F.The secondary indexes are optimized for unique key look-ups.

Question 12

You have installed MySQL Server for the first time on your system. However, the data directory along with the tables in the mysql system database are missing. Which step do you perform to create the contents of the data directory?

A.Run the create_system_tables.sql file

B.Run the mysql_unpack.sql file

C.Invoke mysqld with the --initialize option.

D.Invoke mysql with the --initialize option.

Question 13

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?

A.Backup State = Raw BackupOperation = apply-log

B.Backup State = Raw BackupOperation = backupdir-to-image

C.Backup State = Prepared BackupOperation = validate

D.Backup State = Prepared BackupOperation = apply-log

E.Backup State = Compressed BackupOperation = copy-back

Question 14

These details are shown when logged in to an account:

Which set of statements would match the accounts shown?

A.mysql> CREATE USER 'robert'@'localhost' IDENTIFIED BY 'secret_password';mysql>CREATE USER 'employee'@'localhost' IDENTIFIED BY 'more_secrets';

B.mysql> CREATE USER 'employee'@'localhost' IDENTIFIED BY 'more_secrets';mysql> CREATE USER ''@'' IDENTIFIED BY 'valid_password' WITH PROXY 'employee'@'localhost';

C.mysql> CREATE_USER ''@'' IDENTIFIED WITH authentication_pam ACCOUNT LOCK;mysql> CREATE USER 'employee'@'localhost' IDENTIFIED BY 'more_secrets';mysql> GRANT PROXY ON 'employee'@'localhost' TO ''@'';

D.mysql> CREATE USER 'employee'@'localhost' IDENTIFIED BY 'more_secrets';mysql> GRANT PROXY ON 'employee'@'localhost' TO 'robert'@'localhost';

Question 15

You are looking at these details:

Why does the message "Waiting for an event from Coordinator" show up on the slave_worker threads?

A.The Event Schedular is not enabled on the slave host.

B.The slave is waiting for an event to come into the relay log.

C.The slave thread is waiting for another event to finish in another slave thread.

D.The binary log on the master is not being updated.

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