1Z0-922 Practice Exam and Study Guides - Verified By VCE4Plus Updated 360 Questions
2026 Updated Verified Pass 1Z0-922 Study Guides & Best Courses
NEW QUESTION # 76
What is the main advantage of MySQL InnoDB Cluster over traditional asynchronous replication for high availability?
- A. It is more suitable for read-heavy workloads
- B. It guarantees that all replicas have the same data before committing transactions
- C. It offers better performance in query execution
- D. It reduces the cost of storage
Answer: B
Explanation:
MySQL InnoDB Cluster ensures that all replicas are in sync before committing transactions, offering better data consistency than traditional asynchronous replication, where replicas might lag behind the primary server.
NEW QUESTION # 77
How does the HeatWave Cluster scale to handle increasing workloads?
- A. By automatically replicating data across regions
- B. By enabling asynchronous replication
- C. By adding more HeatWave nodes to process queries in parallel
- D. By creating additional binary logs
Answer: C
Explanation:
The HeatWave Cluster scales by adding more HeatWave nodes. This allows the system to process queries in parallel, distributing the workload across multiple nodes and improving the performance as data sizes and query complexity increase.
NEW QUESTION # 78
Which command would you use to remove a user account in MySQL?
- A. REVOKE ALL PRIVILEGES ON *.* FROM 'user';
- B. DROP USER 'user'@'host';
- C. DELETE USER 'user'@'host';
- D. REMOVE USER 'user'@'host';
Answer: B
Explanation:
The DROP USER command is used to remove a user account from MySQL entirely. It removes the user and their privileges from the system.
NEW QUESTION # 79
Which MySQL backup utility is commonly used for logical backups of databases?
- A. mysqlbackup
- B. mysqladmin
- C. mysqldump
- D. mysqlbinlog
Answer: C
Explanation:
mysqldump is a utility used for logical backups, exporting the data and schema of databases as SQL statements. It is useful for smaller databases or when portability is required.
NEW QUESTION # 80
Which MySQL keyword is used to ensure that a column's value is unique across all rows?
- A. INDEX
- B. DISTINCT
- C. NOT NULL
- D. UNIQUE
Answer: D
Explanation:
The UNIQUE constraint ensures that all values in a column are unique across all rows in a table, preventing duplicates.
NEW QUESTION # 81
In a MySQL InnoDB Cluster, what happens when a node becomes unreachable?
- A. The cluster stops all transactions until the node recovers
- B. The remaining nodes continue to operate, and the cluster self-heals when the node recovers
- C. The node is automatically demoted to a replica
- D. All write operations are blocked
Answer: B
Explanation:
If a node in a MySQL InnoDB Cluster becomes unreachable, the remaining nodes continue to operate, and the cluster adjusts by removing the failed node from the group. When the node recovers, it rejoins the cluster and synchronizes its data.
NEW QUESTION # 82
MySQL Enterprise Edition is designed to meet the needs of businesses by providing which of the following?
- A. Free updates and support
- B. Complete access to source code
- C. Built-in user interface for database management
- D. Advanced monitoring, backup, and security tools
Answer: D
Explanation:
MySQL Enterprise Edition provides advanced tools such as MySQL Enterprise Monitor, Backup, and Firewall, which are essential for business operations requiring high levels of security and performance monitoring.
NEW QUESTION # 83
What is the purpose of the binary log in MySQL?
- A. To monitor database performance metrics
- B. To store all changes made to the database for recovery and replication
- C. To optimize queries by caching execution plans
- D. To log user activities and queries
Answer: B
Explanation:
The binary log in MySQL records all changes made to the database, including inserts, updates, and deletes. It is primarily used for replication and recovery.
NEW QUESTION # 84
What is the purpose of normalization in database design?
- A. To eliminate data redundancy and improve integrity
- B. To increase storage capacity
- C. To create more complex table structures
- D. To improve query performance
Answer: A
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 # 85
Which of the following is a valid numeric datatype in MySQL?
- A. TEXT
- B. DECIMAL
- C. CHAR
- D. ENUM
Answer: B
Explanation:
MySQL supports several numeric datatypes, including DECIMAL, which is used for exact numeric values such as financial data. CHAR, ENUM, and TEXT are string or enumerated datatypes.
NEW QUESTION # 86
Which command would you use to remove all privileges from a specific MySQL user?
- A. ALTER USER 'user'@'host' ACCOUNT LOCK;
- B. REVOKE ALL PRIVILEGES FROM 'user'@'host';
- C. DELETE FROM mysql.user WHERE user='user';
- D. SHOW GRANTS FOR 'user'@'host';
Answer: B
Explanation:
The REVOKE ALL PRIVILEGES command removes all granted privileges from a user without deleting the user account itself. This ensures the user has no permissions in the system.
NEW QUESTION # 87
How does MySQL Enterprise Edition improve security compared to the Community Edition?
- A. It offers more frequent software updates
- B. It includes advanced security tools like data masking and firewall
- C. It provides better support for distributed databases
- D. It does not require any special security configuration
Answer: B
Explanation:
MySQL Enterprise Edition comes with advanced security tools like data masking, encryption, and MySQL Enterprise Firewall, which protect sensitive data and prevent unauthorized access. These features are not available in the Community Edition.
NEW QUESTION # 88
What is the primary function of MySQL Enterprise Monitor?
- A. To prevent SQL injection
- B. To analyze and optimize database performance
- C. To manage MySQL roles and permissions
- D. To facilitate database backups
Answer: B
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 # 89
Which MySQL command is used to perform a logical backup using the mysqldump utility?
- A. mysqldump --backup-databases
- B. mysqlbackup --dump
- C. mysqlbackup --backup-log
- D. mysqldump --all-databases > backup.sql
Answer: D
Explanation:
The mysqldump utility is used to perform logical backups by exporting databases into SQL files. The command mysqldump --all-databases > backup.sql dumps all databases to the specified backup file.
NEW QUESTION # 90
What is the main limitation of asynchronous replication in MySQL?
- A. It has a higher latency than synchronous replication
- B. It can result in data loss if the primary server crashes before the replicas receive the changes
- C. It requires all replicas to acknowledge each transaction
- D. It only works with InnoDB tables
Answer: B
Explanation:
The primary limitation of asynchronous replication is the potential for data loss. If the primary server crashes before the replicas have received the changes, those changes may be lost.
NEW QUESTION # 91
Which feature provides visual analysis of MySQL database performance and health?
- A. MySQL Query Cache
- B. MySQL Enterprise Audit
- C. MySQL Enterprise Monitor
- D. MySQL Enterprise Firewall
Answer: C
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 # 92
Which of the following will remove all privileges for a MySQL user?
- A. GRANT ALL ON *.* TO 'user'@'host';
- B. DELETE FROM mysql.user WHERE User='user' AND Host='host';
- C. REVOKE ALL ON *.* FROM 'user'@'host';
- D. DROP USER 'user'@'host';
Answer: C
Explanation:
The REVOKE ALL ON *.* command removes all privileges for the specified user on all databases and tables.
NEW QUESTION # 93
......
Ultimate Guide to the 1Z0-922 - Latest Edition Available Now: https://www.vce4plus.com/Oracle/1Z0-922-valid-vce-dumps.html
2026 Updated Verified Pass 1Z0-922 Exam - Real Questions and Answers: https://drive.google.com/open?id=1k7eQLoObhUr5TR4DStQGcfxjRFz0-wZO