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NEW QUESTION 14
You want to log only the changes made to the database objects and data on the MySQL system.
Which log will do this by default?
- A. binary log
- B. slow query log
- C. error log
- D. general query log
- E. audit log
Answer: A
NEW QUESTION 15
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. Create the backup by using the --set-gtid-purged=OFF option.
- B. Remove the @@GLOBAL.gtid_purged statement from the dump file.
- C. Stop all instances except the primary read/write master instance and run the restore.
- D. Remove the group replication plugin from each instance before restoring.
- E. Remove the @@GLOBAL.gtid_executed statement from the dump file.
- F. Restore using the --set-gtid-purged=OFF option.
Answer: A,B
NEW QUESTION 16
Examine this query and output:
Which two statements are true? (Choose two.)
- A. It takes more than 8 milliseconds to sort the rows.
- B. 35 rows from the city table are included in the result.
- C. The query returns exactly 125 rows.
- D. The country table is accessed as the first table, and then joined to the city table.
- E. The optimizer estimates that 51 rows in the country table have Continent = 'Asia'.
Answer: B,E
NEW QUESTION 17
Which four are types of information stored in the MySQL data dictionary? (Choose four.)
- A. stored procedure definitions
- B. table definitions
- C. server runtime configuration
- D. server configuration rollback
- E. access control lists
- F. InnoDB buffer pool LRU management data
- G. performance metrics
- H. view definitions
Answer: A,B,D,H
NEW QUESTION 18
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
Explanation:
Explanation/Reference: https://docs.oracle.com/cd/E17952_01/mysql-8.0-en/mysql-installer-workflow.html
NEW QUESTION 19
Examine this command, which executes successfull
mysqlbackup --defaults-file=/backups/server-my.cnf --backup-dir=/backups/full copy-back Which statement is true about the copy-back process?
- A. It restores files from the backup directory to their original MySQL server locations.
- B. The copy-back process makes inconsistent backups.
- C. The copy-back process is used to overwrite a new backup over an existing backup.
- D. It restores files from the data directory to their original MySQL server locations.
Answer: A,C
NEW QUESTION 20
Where is the default data directory located after installing MySQL using RPM on Oracle Linux 7?
- A. /etc/my.cnf
- B. /usr/bin
- C. /usr/mysql
- D. /usr
- E. /var/lib/mysql
Answer: B
NEW QUESTION 21
Examine this command, which executes successfully:
mysqlpump --user=root --password > full_backup.sql
Which two databases will be excluded from this dump? (Choose two.)
- A. information_schema
- B. mysql
- C. employee
- D. world
- E. sys
Answer: A,E
NEW QUESTION 22
You have a MySQL system with 500 GB of data that needs frequent backups.
You use a mix of MyISAM and InnoDB storage engines for your dat
a. Examine your backup requirement:
The MySQL system being backed up can never be unavailable or locked to the client applications.
The recovery from the backup must work on any system.
Only 1 hour of data can be lost on recovery of the backup.
Which option fulfills all backup requirements?
- A. Take a physical backup of the MySQL system.
- B. Take a logical backup of the MySQL system.
- C. Use the Clone Plugin to copy the data to another MySQL system.
- D. Take your backup from a slave of the MySQL system.
Answer: B
NEW QUESTION 23
Which three settings control global buffers shared by all threads on a MySQL server? (Choose three.)
- A. tmp_table_size
- B. table_open_cache
- C. innodb_buffer_pool_size
- D. key_buffer_size
- E. sort_buffer_size
- F. read_buffer_size
Answer: A,D,E
NEW QUESTION 24
Consider this shell output and executed commands:
[root@oel7 ~]# ps aux | grep mysqld
mysql 2076 3.5 24.6 1386852 372572 ? Ssl 12:01 0:01 /usr/sbin/mysqid
[root@oel7 ~]# kill -15 2076
Which statement is true about MySQL server shutdown?
- A. kill -15 and kill -9 are effectively the same forced shutdown that risk committed transactions not written to disk.
- B. kill -15 should be avoided. Use other methods such as mysqladmin shutdown or systemctl stop mysqld.
- C. mysqld_safe prohibits commands that would harm the operation of the server. An error would be returned by the kill command.
- D. kill -15 carries out a normal shutdown process, such as mysqladmin shutdown.
Answer: D
NEW QUESTION 25
Examine these entries from the general query log:
All UPDATE statements reference existing rows.
Which describes the outcome of the sequence of statements?
- A. Connection 25 experiences a lock wait timeout.
- B. A deadlock occurs after innodb_lock_wait_timeout seconds.
- C. Connection 24 experiences a lock wait timeout.
- D. All statements execute without error.
- E. A deadlock occurs immediately.
Answer: B
NEW QUESTION 26
Examine this command and output:
Which two options will improve the security of the MySQL instance? (Choose two.)
- A. Remove the world read/execute privilege from the accounting directory.
- B. Change the group ownership of the mysql directory to the mysql user group.
- C. Remove group read/write privileges from the private_key.pem file.
- D. Remove world read privileges from the server-cert.pem certificate file.
- E. Change the parent directory owner and group to mysql.
- F. Remove world read privileges from the public_key.pem file.
Answer: B,E
NEW QUESTION 27
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
NEW QUESTION 28
User account baduser@hostname on your MySQL instance has been compromised.
Which two commands stop any new connections using the compromised account? (Choose two.)
- A. ALTER USER baduser@hostname IDENTIFIED WITH mysql_no_login;
- B. ALTER USER baduser@hostname MAX_USER_CONNECTIONS 0;
- C. ALTER USER baduser@hostname DEFAULT ROLE NONE;
- D. ALTER USER baduser@hostname PASSWORD DISABLED;
- E. ALTER USER baduser@hostname ACCOUNT LOCK;
Answer: A,E
NEW QUESTION 29
Which step or set of steps can be used to rotate the error log?
- A. Execute SET GLOBAL expire_logs_days=0to enforce a log rotation.
- B. Execute SET GLOBAL max_error_count = <number of messages at point to rotate>.
- C. Rename the error log file on disk, and then execute FLUSH ERROR LOGS.
- D. Execute SET GLOBAL log_error = ‘<new error log file>’.
Answer: C
Explanation:
Explanation/Reference: https://blog.pythian.com/mysql-log-rotation/
NEW QUESTION 30
You have just installed MySQL on Oracle Linux and adjusted your /etc/my.cnf parameters to suit your installation.
Examine the output:
What statement is true about the start attempt?
- A. MySQL server continued to start up even though another process existed.
- B. systemd waited for 30 seconds before timing out and start up failed.
- C. systemd attempted to start mysqld, found another systemd mysqld process running, and shut it down.
- D. systemd found the mysqld service disabled and failed to start it.
- E. MySQL server was not started due to a problem while executing process 2732.
Answer: C
NEW QUESTION 31
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What is the duration, language, and format of Oracle 1Z0-908: MySQL 8.0 Database Exam
- The type of questions is Multiple Choice Questions.
- Passing score:
- Section 2: 45%
- This exam is offered in only English.
- This exam consists of 90 questions.
- Certification Validity period: 3 years.
- Section 3: 33%
- There is a time limit of 140 minutes for the exam.
- Section 1: 60%
Oracle database certifications require periodic recertification. To hold your certification inactive condition, you must update to the new edition within 1 year of Oracle’s credential withdrawal.
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