Pass Oracle 1Z0-922 Actual Free Exam Q&As Updated Dump Mar 26, 2026
Latest 1Z0-922 Actual Free Exam Updated 360 Questions
NEW QUESTION # 202
What does the SELECT privilege allow a user to do in MySQL?
- A. Insert new records
- B. Create new databases
- C. Read data from tables
- D. Update existing records
Answer: C
Explanation:
The SELECT privilege allows users to retrieve or read data from tables. Users can run queries that fetch data, but they cannot modify, insert, or delete data unless they have the appropriate privileges.
NEW QUESTION # 203
What is the key benefit of using compressed backups with MySQL Enterprise Backup?
- A. Faster backup times
- B. Reduced storage requirements for the backup files
- C. Increased encryption levels for the backup
- D. Improved database performance during backups
Answer: B
Explanation:
Compressed backups reduce the size of the backup files, which in turn minimizes storage requirements. This is especially useful for large databases or when storing backups on external or cloud storage.
NEW QUESTION # 204
What is the purpose of the REVOKE statement in MySQL?
- A. To delete a user from the system
- B. To grant all privileges to a user
- C. To remove specific privileges from a user
- D. To rename a user
Answer: C
Explanation:
The REVOKE statement is used to remove privileges that have previously been granted to a MySQL user.
NEW QUESTION # 205
What is the primary purpose of MySQL Enterprise Backup?
- A. To perform non-blocking backups of MySQL databases
- B. To monitor database security
- C. To enhance database performance
- D. To improve query optimization
Answer: A
Explanation:
MySQL Enterprise Backup allows for non-blocking, hot backups of MySQL databases. This means backups can be performed while the database is still in use, without interrupting database operations.
NEW QUESTION # 206
What type of queries benefit the most from HeatWave Cluster in MySQL Database Service?
- A. Simple SELECT queries
- B. Backup and restore operations
- C. OLTP transaction-based queries
- D. Complex analytical queries
Answer: D
Explanation:
HeatWave Cluster is specifically designed to optimize complex analytical queries. It accelerates query performance by executing these queries in memory and in parallel, making it ideal for real-time analytics on large datasets.
NEW QUESTION # 207
Which MySQL command is used to delete a table from a database?
- A. REMOVE TABLE
- B. DELETE TABLE
- C. TRUNCATE TABLE
- D. DROP TABLE
Answer: D
Explanation:
The DROP TABLE command is used to permanently delete a table and its data from the database.
NEW QUESTION # 208
Which two advantages does the HeatWave Cluster provide in MySQL Database Service?
- A. Real-time analytics with in-memory execution
- B. Increased consistency for transactional workloads
- C. Faster backups for large databases
- D. Parallel processing of analytic queries
Answer: A,D
Explanation:
The HeatWave Cluster accelerates query performance by using parallel processing of analytical queries across distributed nodes, and it allows for real-time analytics by executing queries in-memory.
NEW QUESTION # 209
How can you disable binary logging for a MySQL session?
- A. SET SQL_LOG_BIN = 0
- B. SET BINLOG_LOGGING = 0
- C. SET BIN_LOG = OFF
- D. SET BINLOG_DISABLE = 1
Answer: A
Explanation:
To disable binary logging for a session, you can use the SET SQL_LOG_BIN = 0 command. This prevents the logging of queries executed during the session to the binary log.
NEW QUESTION # 210
What is a key limitation of using mysqldump for backups in large databases?
- A. It does not include user privileges in the backup
- B. It is slower and less efficient for large datasets compared to physical backups
- C. It does not support logical backups
- D. It cannot be used for point-in-time recovery
Answer: B
Explanation:
mysqldump is slower and less efficient for large databases because it performs logical backups by exporting the data as SQL statements. For large datasets, physical backups are generally faster and more efficient.
NEW QUESTION # 211
Which two settings can be configured in my.cnf to optimize the performance of MySQL?
- A. query_cache_size
- B. binlog_format
- C. innodb_buffer_pool_size
- D. max_connections
Answer: C,D
Explanation:
innodb_buffer_pool_size optimizes data caching, and max_connections helps handle concurrent connections, both critical for performance tuning. binlog_format is related to replication, not performance.
NEW QUESTION # 212
Which datatype should be used to store date and time information in MySQL?
- A. All of the above
- B. DATE
- C. TIMESTAMP
- D. DATETIME
Answer: A
Explanation:
MySQL provides several datatypes for handling date and time information, including DATE (for date only), DATETIME (for both date and time), and TIMESTAMP (for automatic timezone adjustments).
NEW QUESTION # 213
Which of the following systems can be integrated with MySQL Enterprise Authentication for external user authentication?
- A. GitHub
- B. Google Cloud Identity
- C. Kerberos
- D. Facebook OAuth
Answer: C
Explanation:
MySQL Enterprise Authentication can integrate with external authentication systems such as Kerberos, LDAP, and Active Directory, allowing for centralized management of user credentials.
NEW QUESTION # 214
What is the role of the --apply-log option when restoring a backup with mysqlbackup?
- A. It restores a backup by creating the necessary indexes
- B. It prepares a backup for restoration by applying the transaction logs
- C. It performs a binary log recovery
- D. It creates a new database from the backup file
Answer: B
Explanation:
The --apply-log option in mysqlbackup applies the changes stored in the transaction logs to the backed- up data files, ensuring the data is consistent and ready for restoration.
NEW QUESTION # 215
Which parameter controls the size of the redo log files used by the InnoDB storage engine?
- A. query_cache_size
- B. innodb_data_file_size
- C. innodb_log_file_size
- D. innodb_buffer_pool_size
Answer: C
Explanation:
The innodb_log_file_size parameter controls the size of the redo log files, which are essential for recovering transactions in the event of a crash. The larger the log file, the more data can be stored before it is flushed to disk.
NEW QUESTION # 216
Which feature provides visual analysis of MySQL database performance and health?
- A. MySQL Query Cache
- B. MySQL Enterprise Firewall
- C. MySQL Enterprise Audit
- D. MySQL Enterprise Monitor
Answer: D
Explanation:
MySQL Enterprise Monitor provides a visual dashboard that helps administrators track the health and performance of MySQL databases, offering real-time monitoring and optimization suggestions.
NEW QUESTION # 217
Which type of replication topology would you use to enable read scaling by distributing read queries across multiple replicas?
- A. Primary-replica replication
- B. Star replication
- C. Multi-primary replication
- D. Circular replication
Answer: A
Explanation:
In a Primary-Replica replication topology, read queries can be distributed across multiple replicas to enable read scaling, while all write operations are directed to the primary server.
NEW QUESTION # 218
Which MySQL privilege allows a user to view running queries and session details?
- A. SELECT
- B. PROCESS
- C. SHOW GRANTS
- D. EXECUTE
Answer: B
Explanation:
The PROCESS privilege allows a user to view running queries and active sessions by using commands like SHOW PROCESSLIST. It is useful for monitoring database activity.
NEW QUESTION # 219
What is the purpose of normalization in database design?
- A. To improve query performance
- B. To create more complex table structures
- C. To increase storage capacity
- D. To eliminate data redundancy and improve integrity
Answer: D
Explanation:
Normalization reduces data redundancy and ensures data integrity by organizing data into related tables. This leads to better data consistency across the database.
NEW QUESTION # 220
Which command is used to shut down the MySQL server on a Linux system?
- A. mysqladmin --stop
- B. mysql shutdown
- C. systemctl stop mysqld
- D. service mysql-server shutdown
Answer: C
Explanation:
On most Linux distributions, you can stop the MySQL server using the systemctl stop mysqld command, which sends a shutdown signal to the MySQL service.
NEW QUESTION # 221
Which replication topology allows each server to act as both a primary and a replica, enabling updates on any server?
- A. Multi-primary replication
- B. Synchronous replication
- C. Primary-replica replication
- D. Circular replication
Answer: A
Explanation:
Multi-primary replication (also known as multi-master replication) allows updates on any server in the topology, with changes being replicated to all other servers.
NEW QUESTION # 222
What is the primary function of MySQL Enterprise Monitor?
- A. To analyze and optimize database performance
- B. To facilitate database backups
- C. To prevent SQL injection
- D. To manage MySQL roles and permissions
Answer: A
Explanation:
MySQL Enterprise Monitor provides a graphical interface that helps administrators track the health and performance of MySQL databases. It includes real-time monitoring and alerting to identify potential bottlenecks or issues before they affect performance.
NEW QUESTION # 223
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