View All 1z1-908 Actual Free Exam Questions Nov 12, 2023 Updated
Pass Authentic Oracle 1z1-908 with Free Practice Tests and Exam Dumps
Oracle 1z1-908 certification exam is a multiple-choice exam that consists of 70 questions. 1z1-908 exam is divided into four sections, and each section covers different aspects of MySQL database administration. The sections are Database Architecture and Design, Security, Performance Optimization and Tuning, and Backup and Recovery. 1z1-908 exam duration is 105 minutes, and the passing score is 63%.
NEW QUESTION # 18
You are using an existing server with a new configuration. MySQL Server fails to start.
Examine this snapshot of the error log:
Which action would allow the server to start?
- A. Remove ib_logfile0 and ib_logfile1 files from the file system.
- B. First run mysqld --initialize to refresh the Size of ib_logfile.
- C. Execute mysqladmin flush-logs.
- D. Create a new ib_logfile0 file of size 26214400.
Answer: B
NEW QUESTION # 19
MySQL programs look for option files in standard locations.
Which method will show the option files and the order in which they are read?
- A. shell> mysqld --help --verbose
- B. mysql> SHOW GLOBAL VARIABLES;
- C. shell> mysqladmin --debug
- D. shell> mysql --print-defaults
Answer: C
NEW QUESTION # 20
Which three sets of item information are visible in the mysql system database? (Choose three.)
- A. audit log events
- B. help topics
- C. information about table structures
- D. rollback segments
- E. performance monitoring information
- F. plugins
- G. time zone information and definitions
Answer: B,D,F
NEW QUESTION # 21
Examine this query and output:
Which two statements are true? (Choose two.)
- A. The query returns exactly 125 rows.
- B. The countrytable is accessed as the first table, and then joined to the city table.
- C. The optimizer estimates that 51 rows in the countrytable have Continent = ‘Asia’.
- D. 35 rows from the city table are included in the result.
- E. It takes more than 8 milliseconds to sort the rows.
Answer: C,D
NEW QUESTION # 22
You want to check the values of the sort_buffer_sizesession variables of all existing connections.
Which performance_schematable can you query?
- A. variables_by_thread
- B. global_variables
- C. user_variables_by_thread
- D. session_variables
Answer: D
Explanation:
Explanation/Reference: https://dev.mysql.com/worklog/task/?id=6629
NEW QUESTION # 23
Examine this query and output:
Which two statements are true? (Choose two.)
- A. The query returns exactly 125 rows.
- B. The optimizer estimates that 51 rows in the country table have Continent = 'Asia'.
- C. 35 rows from the city table are included in the result.
- D. The country table is accessed as the first table, and then joined to the city table.
- E. It takes more than 8 milliseconds to sort the rows.
Answer: B,C
NEW QUESTION # 24
A colleague complains about slow response time on your website.
Examine this query and output:
What is the most likely cause for the high number of lock waits?
- A. Your table accesses wait for the operating system level flush.
- B. The Innodb Buffer pool is full.
- C. You use the MyISAM storage engine for most common tables.
- D. You use the InnoDB storage engine and statements wait while data is inserted.
Answer: D
NEW QUESTION # 25
On examination, your MySQL installation datadir has become recursively world read/write/executable.
What are two major concerns of running an installation with incorrect file privileges? (Choose two.)
- A. MySQL binaries could be damaged, deleted, or altered.
- B. Extra startup time would be required for the MySQL server to reset the privileges.
- C. Users could overwrite configuration files.
- D. SQL injections could be used to insert bad data into the database.
- E. Data files could be deleted.
Answer: B,E
NEW QUESTION # 26
You have configured MySQL Enterprise Monitor to monitor your MySQL server.
Which four features are available? (Choose four.)
- A. analyzing executed MySQL queries
- B. monitoring of NDB Cluster API nodes
- C. monitoring the availability of the MySQL instance
- D. deploying the MySQL agent on supported target operating system
- E. tracing import and export with mysqidump
- F. starting and stopping the MySQL instance
- G. creating e-mail alerts and SNMP traps for MySQL warnings
Answer: A,C,E,G
NEW QUESTION # 27
How can mysql_multi be configured to allow MySQL instances to use the same port number?
- A. The instances use different socket names.
- B. The instances use different user accounts unique to each instance.
- C. The instances have appropriate net masks set.
- D. The instances listen on different IP addresses.
Answer: D
NEW QUESTION # 28
Which three are characteristics of a newly created role? (Choose three.)
- A. It is created as a locked account.
- B. It can be dropped using the DROP ROLEstatement.
- C. It is stored in the mysql.roletable.
- D. It can be granted to user accounts.
- E. It can be protected with a password.
- F. It can be renamed using the RENAME ROLEstatement.
Answer: B,D,E
Explanation:
Explanation/Reference:
NEW QUESTION # 29
Examine these statements, which execute successfully:
CREATE ROLE r_world_rd;
GRANT SELECT ON world.* TO r_world_rd;
CREATE USER john IDENTIFIED BY 'P@ssw0rd';
GRANT r_world_rd TO john;
Examine these statements issued by user John:
What is the reason for the error?
- A. John has not activated the role.
- B. John needs to reconnect to the database.
- C. The statement was blocked by MySQL Firewall.
- D. The DBA needs to execute FLUSH PRIVILEGES.
Answer: A
NEW QUESTION # 30
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. Execute SET GLOBAL log_error = ‘<new error log file>’.
- D. Rename the error log file on disk, and then execute FLUSH ERROR LOGS.
Answer: D
Explanation:
Explanation/Reference: https://blog.pythian.com/mysql-log-rotation/
NEW QUESTION # 31
You are upgrading a MySQL instance to the latest 8.0 version.
Examine this output:
You plan to add this parameter to the configuration: innodb_directories='/innodb_extras' Which statement is true?
- A. It defines all innodb tablespace options relative to a starting parent directory.
- B. It adds more temporary workspace in addition to the innodb_tmpdir location.
- C. It moves all innodb tablespaces to the /innodb_extras directory to enable a new innodb_data_home_dir to be defined.
- D. It is not necessary because innodb_data_home_dir is already defined.
- E. It allows scanning of other locations to discover more innodb tablespaces.
Answer: D
NEW QUESTION # 32
You execute this command:
shell> mysqlpump --exclude-databases=% --users
Which statement is true?
- A. It creates a logical backup of all metadata, but contains no table data.
- B. It creates a logical backup of only the users database.
- C. It returns an error because the mysqldump command should have been used.
- D. It creates a logical backup of all MySQL user accounts.
Answer: A
NEW QUESTION # 33
......
Oracle 1z1-908: MySQL 8.0 Database Administrator exam is a valuable certification for database administrators who want to demonstrate their expertise in MySQL database administration. 1z1-908 exam covers a broad range of topics and requires a good understanding of MySQL 8.0 features and functionalities. Passing 1z1-908 exam will enhance your career prospects and validate your skills as a MySQL database administrator.
New 1z1-908 Exam Questions Real Oracle Dumps: https://gcgapremium.pass4leader.com/Oracle/1z1-908-exam.html