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2026 Realistic Verified Free Oracle 1Z0-922 Exam Questions
NEW QUESTION # 192
Which two tools are available for monitoring InnoDB performance in MySQL?
- A. Performance Schema
- B. MySQL Enterprise Monitor
- C. MySQL Query Cache
- D. InnoDB Monitor
Answer: A,B
Explanation:
MySQL Enterprise Monitor and Performance Schema are powerful tools that provide insights into InnoDB performance, helping to track queries, wait events, and resource usage in detail.
NEW QUESTION # 193
Which column in the mysql.user table defines where a user can connect from?
- A. Password
- B. Host User
- C. Role D.
Answer: B
Explanation:
The Host column in the mysql.user table defines the host or IP address from which the user is allowed to connect to the MySQL server.
NEW QUESTION # 194
What does MySQL Enterprise Backup provide that is not available with the Community Edition?
- A. Backup scheduling
- B. Integration with LDAP
- C. Point-in-time recovery
- D. Real-time query analysis
Answer: C
Explanation:
MySQL Enterprise Backup offers advanced features such as point-in-time recovery, which allows you to restore the database to a specific time. This feature is critical for disaster recovery and is not available in the Community Edition.
NEW QUESTION # 195
How does HeatWave improve the performance of MySQL Database Service for analytical queries?
- A. By caching queries on disk
- B. By compressing data before processing
- C. By parallelizing query execution across multiple nodes
- D. By reducing the replication overhead
Answer: C
Explanation:
HeatWave improves the performance of analytical queries by parallelizing query execution across multiple HeatWave nodes. This allows complex queries to be processed faster by dividing the workload across several in-memory nodes.
NEW QUESTION # 196
Which command is used to start the MySQL server on a Linux system after installation?
- A. mysql start
- B. service mysqld start
- C. systemctl start mysql-server
- D. systemctl start mysqld
Answer: D
Explanation:
On modern Linux systems, the systemctl start mysqld command is used to start the MySQL server. The mysqld is the daemon responsible for running the MySQL server.
NEW QUESTION # 197
Which MySQL Enterprise Edition tool is used to monitor and track the performance of MySQL databases?
- A. Enterprise Firewall MySQL Role-
- B. Enterprise Monitor MySQL
- C. MySQL Enterprise Backup MySQL
- D. Based Access Control
Answer: B
Explanation:
MySQL Enterprise Monitor helps database administrators monitor the health, performance, and availability of MySQL databases through real-time alerts and graphical reports.
NEW QUESTION # 198
Which MySQL parameter is responsible for disabling the query cache?
- A. query_cache_size
- B. innodb_flush_method
- C. query_cache_type
- D. query_cache_limit
Answer: C
Explanation:
The query_cache_type parameter controls whether the query cache is enabled or disabled. Setting this parameter to OFF disables query caching entirely.
NEW QUESTION # 199
Which of the following cannot be revoked from a MySQL user?
- A. SELECT
- B. CREATE USER
- C. GRANT OPTION
- D. EXECUTE
Answer: B
Explanation:
The CREATE USER privilege grants the ability to create new users. Once a user is created, their privileges can be revoked, but the user cannot be revoked in the same way.
NEW QUESTION # 200
Which MySQL component is responsible for handling transactions and ensuring ACID compliance?
- A. MySQL Buffer Pool
- B. MySQL Replication
- C. Query Optimizer
- D. InnoDB Storage Engine
Answer: D
Explanation:
The InnoDB Storage Engine is responsible for handling transactions and ensuring ACID (Atomicity, Consistency, Isolation, Durability) compliance in MySQL. It provides features like row-level locking, transaction isolation levels, and crash recovery, making it the preferred storage engine for transactional workloads.
NEW QUESTION # 201
Which backup method should you use to capture both the database structure and data for disaster recovery in MySQL?
- A. Logical backup using mysqldump
- B. Incremental backup
- C. Full backup
- D. Binary log backup
Answer: C
Explanation:
A full backup captures both the database structure and all data, providing a complete snapshot of the database at the time of the backup. This is essential for disaster recovery, as it ensures that you can restore the entire database from a single backup.
NEW QUESTION # 202
Which privilege is required to grant privileges to other users?
- A. SELECT
- B. GRANT OPTION
- C. UPDATE
- D. INSERT
Answer: B
Explanation:
The GRANT OPTION privilege allows a user to grant the privileges they have to other users.
NEW QUESTION # 203
Which MySQL Enterprise Edition feature helps to enforce user privileges?
- A. MySQL Role-Based Access Control
- B. MySQL Enterprise Monitor MySQL
- C. Enterprise Backup MySQL Query
- D. Cache
Answer: A
Explanation:
MySQL Role-Based Access Control (RBAC) allows for fine-grained control over user privileges, making it easier to manage database security and restrict access to specific actions within the database.
NEW QUESTION # 204
What is the function of MySQL Enterprise Firewall?
- A. To schedule regular database backups
- B. To analyze and block unauthorized queries
- C. To monitor query performance
- D. To manage database replication
Answer: B
Explanation:
MySQL Enterprise Firewall protects the database from unauthorized access and SQL injection attacks by analyzing and blocking malicious queries in real time.
NEW QUESTION # 205
What is the primary goal of using MySQL InnoDB Cluster?
- A. To backup MySQL databases automatically
- B. To create read replicas for performance
- C. To enable high availability and scalability in MySQL
- D. To optimize query performance
Answer: C
Explanation:
MySQL InnoDB Cluster provides high availability and scalability by enabling automatic failover and replication across multiple MySQL servers. It ensures that the system can recover from failures and distribute the workload across multiple nodes.
NEW QUESTION # 206
When setting up a MySQL Enterprise Server, which parameter in the my.cnf file controls the size of the InnoDB buffer pool?
- A. innodb_buffer_pool_size
- B. innodb_log_buffer_size
- C. query_cache_size
- D. max_buffer_size
Answer: A
Explanation:
The innodb_buffer_pool_size parameter in the my.cnf file specifies the size of the buffer pool in MySQL. A larger buffer pool size can improve performance by reducing disk I/O.
NEW QUESTION # 207
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