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NEW QUESTION 23
Which command enables rule-based MySQL Auditing capabilities?
- A. shell> mysql < audit_log_filter_linux_install.sql
- B. shell> mysqld --initialize --log-raw=audit.log
- C. mysql> INSTALL COMPONENT audit_log;
- D. mysql> INSTALL PLUGIN audit_log;
Answer: A
Explanation:
Explanation/Reference: https://dev.mysql.com/doc/mysql-security-excerpt/5.7/en/audit-log-filtering.html
NEW QUESTION 24
Which two statements are true about the mysql_config_editor program? (Choose two.)
- A. It manages the configuration of user privileges for accessing the server.
- B. It can be used to create and edit SSL certificates and log locations.
- C. It manages the configuration of client programs.
- D. It provides an interface to change my.cnf files.
- E. It can move datadir to a new location.
- F. It will use [client] options by default unless you provide --login-path.
- G. It manages the configuration of the MySQL Firewall feature.
Answer: C,F
NEW QUESTION 25
You are backing up raw InnoDB files by using mysqlbackup.
Which two groups of files will be backed up during a full backup? (Choose two.)
- A. ibbackup files
- B. *.sdi files
- C. *.ibd files
- D. ib_logfile* files
- E. *.CSM files
Answer: C,D
NEW QUESTION 26
You made some table definition changes to a schema in your MySQL Server.
Which two statements reflect how MySQL Server handles the table definition changes? (Choose two.)
- A. MySQL Server stores a copy of the serialized data in the InnoDB user tablespace.
- B. MySQL implicitly executes FLUSH TABLES and stores a snapshot backup of the metadata.
- C. The metadata is serialized in JSON format in Serialized Dictionary Information (SDI).
- D. MySQL keeps InnoDB metadata changes in .sdi files in datadir.
- E. MySQL writes SDI to the binary log for distributed backups.
Answer: A,C
NEW QUESTION 27
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 work.
- B. Replication will fail because the master has already purged transactions with cccccccc-cccc-cccc- cccc-ccccccccccccGTIDs.
- C. Replication will fail because the slave has purged more aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa transactions than the master.
- D. Replication will fail because of inconsistent numbers in cccccccc-cccc-cccc-cccc-cccccccccccc GTIDs.
- E. Replication will fail because the master does not have the required transaction with bbbbbbbb-bbbb- bbbb-bbbb-bbbbbbbbbbbbGTIDs in its binary logs.
Answer: C
Explanation:
Explanation/Reference: https://bugs.mysql.com/bug.php?id=86643
NEW QUESTION 28
You want to check the values of the sort_buffer_size session variables of all existing connections.
Which performance_schema table can you query?
- A. variables_by_thread
- B. global_variables
- C. session_variables
- D. user_variables_by_thread
Answer: C
NEW QUESTION 29
Examine these commands and output:
Which connection ID is holding the metadata lock?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
- F. 5
Answer: D
NEW QUESTION 30
Which three actions are effective in capacity planning? (Choose three.)
- A. buying more RAM
- B. buying more CPU
- C. basing expected growth on an average of the last 3 years
- D. buying more disk
- E. adding circular replication nodes for increased DML capability
- F. monitoring OS resources for patterns
- G. consulting the application team about any future projects and use
- H. upgrading to the latest application version
Answer: C,F,G
NEW QUESTION 31
Which two are true about binary logs used in asynchronous replication? (Choose two.)
- A. They contain events that describe only administrative commands run on the master.
- B. They are pulled from the master to the slave.
- C. They contain events that describe database changes on the master.
- D. They contain events that describe all queries run on the master.
- E. They are pushed from the master to the slave.
Answer: C,E
Explanation:
Explanation/Reference: https://www.oracle.com/technetwork/community/developer-day/mysql-replication-presentation-
485890.pdf (14)
NEW QUESTION 32
Examine this list of MySQL data directory binary logs:
binlog.000001 binlog.000002
.....
binlog.000289
binlog.000300
binlog.000301
binlog.index
Now examine this command, which executes successfully:
mysqldump --delete-master-logs --all-databases > /backup/db_backup.sql
Which two are true? (Choose two.)
- A. All databases are backed up to the output file.
- B. All non-active binary logs are removed from the master.
- C. All details regarding deleted logs and master metadata are captured in the output file.
- D. All binary logs are deleted from the master.
- E. All databases, excluding master metadata, are backed up to the output file.
- F. All binary logs are backed up and then deleted.
Answer: D,E
NEW QUESTION 33
An existing asynchronous replication setup is running MySQL 8.
Which two steps are a part of implementing GTID replication? (Choose two.)
- A. Restart MySQL (master and slave) with these options enabled:
--gtid_mode=ON
--log-bin
--log-slave-updates
--enforce-gtid-consistency - B. On the slave, alter the MySQL master connection setting with:
ALTER channel CHANGE MASTER TO MASTER_AUTO_POSITION = 1; - C. Enable GTID by executing this on the master and the slave:
SET GLOBAL GTID_ENABLED=on; - D. On the slave, alter the MySQL master connection setting with:
CHANGE MASTER TO MASTER_AUTO_POSITION = 1; - E. Execute this on the slave to enable GTID:
RESET SLAVE; START SLAVE GTID_NEXT=AUTOMATIC; - F. Execute this on the slave to enable GTID:
START SLAVE IO_THREAD WITH GTID;
Answer: A,D
NEW QUESTION 34
Examine these statements and output:
Which statement is true?
- A. The user failed to define a username and the connecting username defaulted to ''@'%'.
- B. The user is authorized as the accounting@localhost user.
- C. The user is logged in with --user=accounting as an option.
- D. The user is authorized as the rsmith@localhost user.
- E. The user is authenticated as the anonymous proxy user ''@'%'.
Answer: D
NEW QUESTION 35
Which two queries are examples of successful SQL injection attacks? (Choose two.) SELECT user,passwd FROM members
- A. SELECT id, name FROM user WHERE id=23 OR id=32 OR 1=1;
- B. WHERE user = ‘?’;INSERT INTO members(‘user’,’passwd’) VALUES
(‘[email protected]’,‘secret’);--‘; - C. SELECT email,passwd FROM members
- D. SELECT id, name FROM user WHERE id=23 OR id=32 AND 1=1;
- E. SELECT id, name FROM user WHERE user.id=(SELECT members.id FROM members);
- F. WHERE email = ‘INSERT INTO members(‘email’,’passwd’) VALUES
(‘[email protected]’, ‘secret’);--‘;
SELECT user, phone FROM customers WHERE name = ‘\; DROP TABLE users; --‘;
Answer: C,D
NEW QUESTION 36
Examine this statement and output:
You must try to reduce query execution time.
Which two queries should you focus on? (Choose two.)
- A. QN = 1
- B. QN = 5
- C. QN = 3
- D. QN = 4
- E. QN = 2
Answer: A,E
NEW QUESTION 37
Your MySQL server is running on the Microsoft Windows platform.
Which three local connection protocols are available to you? (Choose three.)
- A. UDP
- B. X Protocol
- C. shared memory
- D. SOCKET
- E. named pipes
- F. TCP/IP
Answer: C,E,F
NEW QUESTION 38
Examine this statement and output:
You must try to reduce query execution time.
Which two queries should you focus on? (Choose two.)
- A. QN = 1
- B. QN = 5
- C. QN = 3
- D. QN = 4
- E. QN = 2
Answer: A,E
NEW QUESTION 39
Your MySQL server was upgraded from an earlier major version.
The sales database contains three tables, one of which is the transactions table, which has 4 million rows.
You are running low on disk space on the datadir partition and begin to investigate.
Examine these commands and output:
Which two statements are true? (Choose two.)
- A. Truncating the transactions table will free up the most disk space.
- B. Executing ALTER TABLE transactions will enable you to free up disk space.
- C. The transactions table was created with innodb_file_per_table=OFF.
- D. Executing SET GLOBAL innodb_row_format=COMPRESSED and then ALTER TABLE transactions will free up disk space.
- E. Truncating the sales and leads table will free up disk space.
Answer: C,D
NEW QUESTION 40
Which two are contained in the InnoDB system tablespace (ibdata1) by default? (Chose two.)
- A. primary indexes
- B. user privileges
- C. InnoDB Data Dictionary
- D. table data
- E. change buffer
- F. doublewrite buffer
Answer: C,F
Explanation:
Explanation/Reference: https://docs.oracle.com/cd/E17952_01/mysql-5.7-en/innodb-system-tablespace.html
NEW QUESTION 41
Examine this command, which executes successfully:
cluster.addInstance('<user>@<host>:<port>', {recoveryMethod: 'clone'})
Which three statements are true? (Choose three.)
- A. It is always slower than {recoveryMethod: 'incremental'}.
- B. The account used to perform this recovery needs the BACKUP_ADMIN privilege.
- C. A target instance must exist, then it will be provisioned with data from an instance already in the cluster and joined to the cluster.
- D. A new instance is installed, initialized, and provisioned with data from an instance already in the cluster and joined to the cluster.
- E. InnoDB tablespaces outside the datadir are able to be cloned.
- F. InnoDB redo logs must not rotate for the duration of the execution; otherwise, the recovery will fail.
Answer: A,B,F
NEW QUESTION 42
Which three are characteristics of a newly created role? (Choose three.)
- A. It can be granted to user accounts.
- B. It can be renamed using the RENAME ROLEstatement.
- C. It can be protected with a password.
- D. It is created as a locked account.
- E. It is stored in the mysql.roletable.
- F. It can be dropped using the DROP ROLEstatement.
Answer: A,C,F
Explanation:
Explanation/Reference:
NEW QUESTION 43
Examine this query:
What information does this query provide?
- A. total memory used by thread number 10
- B. total memory used across all connections associated with the user on connection number 10
- C. total memory used by connection number 10
- D. total memory used across all connections associated with the user on thread number 10
- E. total memory used by the first 10 connections
- F. total memory used by the first 10 threads
Answer: C
NEW QUESTION 44
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