Free Access Oracle.1Z0-908.v2022-04-08.q45 Practice Test (Page 7)

Question 26

You have an InnoDB Cluster configured with three servers.
Examine this command, which executes successfully:
mysqldump -uroot -p -d mydatabase > mydatabase_backup.sql
Due to data loss, the cluster is initialized and a restore is attempted resulting in this error:
ERROR 13176 (HY000) at line 23: Cannot update GTID_PURGED with the Group Replication plugin running Which two actions, either one of which, can fix this error and allow a successful restore of the cluster? (Choose two.)

A.Remove the @@GLOBAL.gtid_purged statement from the dump file.

B.Restore using the --set-gtid-purged=OFF option.

C.Create the backup by using the --set-gtid-purged=OFF option.

D.Remove the group replication plugin from each instance before restoring.

E.Stop all instances except the primary read/write master instance and run the restore.

F.Remove the @@GLOBAL.gtid_executed statement from the dump file.

Question 27

Examine this command, which executes successfully:
shell> mysqldump --master-data=2 --single-transaction --result-file=dump.sql mydb Which two statements are true? (Choose two.)

A.The backup created is a consistent data dump.

B.It executes flush tables with read lock.

C.This option uses the READ COMMITTED transaction isolation mode.

D.It enforces consistent backups for all storage engines.

E.It is a cold backup.

Question 28

You reconfigure and start a slave that was not replicating for several days.
The configuration file and CHANGE MASTERcommand are correct.
Examine the GTID information from both master and slave:

Which statement is true?

A.Replication will fail because the slave has purged more aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa transactions than the master.

B.Replication will fail because the master does not have the required transaction with bbbbbbbb-bbbb- bbbb-bbbb-bbbbbbbbbbbbGTIDs in its binary logs.

C.Replication will fail because the master has already purged transactions with cccccccc-cccc-cccc- cccc-ccccccccccccGTIDs.

D.Replication will fail because of inconsistent numbers in cccccccc-cccc-cccc-cccc-cccccccccccc GTIDs.

E.Replication will work.

Question 29

Which two storage engines provide a view of the data consistent with the storage system at any moment?
(Choose two.)

A.MyISAM

B.NDB

C.MEMORY

D.ARCHIVE

E.InnoDB

Question 30

Which two queries are examples of successful SQL injection attacks? (Choose two.)

A.SELECT email,passwd FROM members
WHERE email = 'INSERT INTO members('email','passwd') VALUES ('[email protected]',
'secret');--';

B.SELECT id, name FROM user WHERE id=23 OR id=32 OR 1=1;

C.SELECT id, name FROM user WHERE id=23 OR id=32 AND 1=1;

D.SELECT id, name FROM user WHERE user.id=(SELECT members.id FROM members);

E.SELECT user,passwd FROM members
WHERE user = '?';INSERT INTO members('user','passwd') VALUES
('[email protected]','secret');--';

F.SELECT user, phone FROM customers WHERE name = '\; DROP TABLE users; --';

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Question 26

Question 27

Question 28

Question 29

Question 30

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