Free Access Oracle.1Z0-888.v2022-04-28.q136 Practice Test (Page 11)

Question 46

This output is from a SHOW SLAVE STATUS:

What would cause the SQL_Delay variable to have a value of 360?

A.The master has performed a large transaction, which will take 360 seconds to complete on the slave.

B.The network latency between the master and the slave is 360 milliseconds.

C.The slave was configured for delayed replication with a delay of six minutes.

D.The slave will need an estimated 360 seconds to update the remaining contents from the relay log.

Question 47

After rebooting the host, you attempt to start the mysqldservice. You get the following error:
Can't start the server: Bind on TCP/IP port: Address already in use
What is the most likely cause of this error?

A.The /etc/hostsfile does not have a valid IP entry for mysqld localhost, so it is binding to
127.0.0.1, which is already in use.

B.The mysqlservice has already been started on the same port.

C.The mysql.sockfile in the MySQL /tmpdirectory was not removed after the reboot, so mysqldstill thinks there is an active server running.

D.You failed to specify the port number 3306to the command to start the server, so it is defaulting to port
80, which is in use by the built-in web server.

E.The network service process in the server is frozen, so all TCP/IPconnections are paused and cannot be reused.

Question 48

A MySQL replication slave is set up as follows:
Uses all InnoDB tables

Receives ROW-based binary logs

Has the read-only option

The replication slave has been found in an error state.
You check the MySQL error log file and find these entries:

What are two possible causes for this error to occur? (Choose two.)

A.The root user on the slave has executed FLUSH LOGS, causing the relay-log to doublewrite.

B.The slave user does not have INSERT, UPDATE, or DELETEpermission and cannot execute the Write_rowsfunction.

C.For tables with UNIQUE keys, statement-based replication must be used to maintain integrity.

D.The applications have the SUPERprivilege, which allows them to update rows.

E.The slave was created with mysqldump -u root -p --skip-lock-tables -all-databases
> /data/data.sql

Question 49

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.)

A.Add a functional index for YEAR(Birthday).

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

C.Add FORCE INDEX (Birthday) to the query.

D.Execute ANALYZE TABLE to update the index statistics.

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

Question 50

A particular government's security policy is to have very strict data encryption and safety settings. This is done by restricting access based on their own CA authority and limiting access to particular users within a department. Which method could be used to restrict access as required?

A.using GRANT USAGE, SSL, .....ON *.* TO user@remotehost IDENTIFIED BY
'secret_password'

B.using GRANT ... REQUIRE SSL for a secure connection

C.using GRANT USAGE, X509, .......ON *.* TO user@remotehost IDENTIFIED BY
'secret_password'

D.using GRANT ... REQUIRE X509 AND REQUIRE ISSUER '/C=.....' AND REQUIRE SUBJECT '/C=...
..'

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Question 46

Question 47

Question 48

Question 49

Question 50

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