Achive your Success with Latest Oracle 1Z1-922 Exam [Dec 01, 2025]
The 1Z1-922 Exam Test For Brief Preparation
NEW QUESTION # 118
What is the purpose of the InnoDB Lock Monitor?
- A. To track query execution times
- B. To log database backups
- C. To manage query cache usage
- D. To monitor table and row-level locks within InnoDB
Answer: D
Explanation:
The InnoDB Lock Monitor helps track table and row-level locks within InnoDB, providing valuable information about lock contention and helping to optimize performance in multi-user environments.
NEW QUESTION # 119
Which feature of MySQL InnoDB Cluster helps maintain high availability in case of primary server failure?
- A. Group Replication with automatic failover
- B. Query caching
- C. Synchronous replication with manual failover
- D. Semi-synchronous replication
Answer: A
Explanation:
MySQL InnoDB Cluster uses Group Replication with automatic failover to promote a new primary server automatically in the event of primary server failure, ensuring continued availability.
NEW QUESTION # 120
Which MySQL system database stores information about users and their privileges?
- A. performance_schema
- B. sys
- C. information_schema
- D. mysql
Answer: D
Explanation:
The mysql system database contains tables that store information about MySQL users, privileges, and roles. The mysql.user table specifically holds user account details.
NEW QUESTION # 121
Which command is used to shut down the MySQL server on a Linux system?
- A. mysqladmin --stop
- B. service mysql-server shutdown
- C. mysql shutdown
- D. systemctl stop mysqld
Answer: D
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 # 122
What type of tool is MySQL Enterprise Audit?
- A. Backup tool for managing database dumps
- B. Security tool for tracking user actions
- C. Monitoring tool for performance
- D. Replication tool for master-slave databases
Answer: B
Explanation:
MySQL Enterprise Audit is designed to track and log database activities, making it easier to detect unauthorized actions and comply with regulatory requirements for data access and modifications.
NEW QUESTION # 123
Which MySQL privilege is required for a user to manage user accounts (create, alter, or drop users)?
- A. INSERT
- B. CREATE USER
- C. SUPER
- D. EXECUTE
Answer: B
Explanation:
The CREATE USER privilege allows users to manage other user accounts, including creating, modifying, and dropping users. This privilege is typically granted to administrators.
NEW QUESTION # 124
What is the purpose of the binary log in MySQL?
- A. To optimize queries by caching execution plans
- B. To monitor database performance metrics
- C. To log user activities and queries
- D. To store all changes made to the database for recovery and replication
Answer: D
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 # 125
What does the innodb_log_file_size parameter in MySQL control?
- A. The size of redo logs
- B. The size of individual InnoDB tables
- C. The maximum number of concurrent connections
- D. The size of the buffer pool
Answer: A
Explanation:
The innodb_log_file_size parameter controls the size of the InnoDB redo log files. These logs help in transaction management and recovery. Increasing the size can reduce the frequency of log flushes, improving performance during write-heavy operations.
NEW QUESTION # 126
What is a key limitation of using mysqldump for backups in large databases?
- A. It is slower and less efficient for large datasets compared to physical backups
- B. It cannot be used for point-in-time recovery
- C. It does not support logical backups
- D. It does not include user privileges in the backup
Answer: A
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 # 127
Which replication topology is best suited for consolidating data from multiple sources into a single replica?
- A. Group replication
- B. Multi-primary replication
- C. Multi-source replication
- D. Circular replication
Answer: C
Explanation:
Multi-source replication allows a single replica to receive data from multiple primary servers. This is ideal for consolidating data from various sources into a single, unified replica.
NEW QUESTION # 128
What does the FOREIGN KEY constraint do in MySQL?
- A. Ensures that all values in a column are unique
- B. Prevents NULL values in a column
- C. Creates an index for a column
- D. Enforces a relationship between two tables
Answer: D
Explanation:
A FOREIGN KEY enforces a relationship between two tables, ensuring that values in the foreign key column correspond to values in the primary key of the related table.
NEW QUESTION # 129
Which MySQL tool helps organizations enforce access control policies by integrating with external authentication systems like LDAP?
- A. MySQL Enterprise Audit
- B. MySQL Enterprise Firewall
- C. MySQL Enterprise Authentication
- D. MySQL Enterprise Backup
Answer: C
Explanation:
MySQL Enterprise Authentication allows organizations to integrate MySQL with external authentication systems like LDAP or Active Directory, providing centralized control over user authentication and access policies.
NEW QUESTION # 130
Which storage engine should you use if you need transactional support and foreign key constraints?
- A. InnoDB
- B. MyISAM
- C. ARCHIVE
- D. MEMORY
Answer: A
Explanation:
InnoDB is the only storage engine in MySQL that provides full support for transactions and foreign key constraints, making it ideal for applications that require data consistency and integrity.
NEW QUESTION # 131
Which MySQL Enterprise Edition feature helps to enforce user privileges?
- A. Cache
- B. MySQL Role-Based Access Control
- C. Enterprise Backup MySQL Query
- D. MySQL Enterprise Monitor MySQL
Answer: B
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 # 132
Which two types of locks does the InnoDB storage engine use?
- A. Page-level locking
- B. Table-level locking
- C. Row-level locking
- D. Clustered index locking
Answer: B,C
Explanation:
InnoDB uses row-level locking to allow greater concurrency, but it can also use table-level locking in certain situations to maintain consistency during DDL operations.
NEW QUESTION # 133
How does MySQL InnoDB Cluster achieve scalability?
- A. By sharding data across multiple nodes
- B. By improving query performance with indexing
- C. By distributing write queries across all nodes
- D. By adding read replicas to handle increased read traffic
Answer: D
Explanation:
MySQL InnoDB Cluster can achieve scalability by adding read replicas that handle read queries, distributing the workload and reducing the pressure on the primary server. Write operations are still handled by a single primary server.
NEW QUESTION # 134
What does the WITH GRANT OPTION clause in a MySQL GRANT statement enable a user to do?
- A. Grant their privileges to other users
- B. Create and modify new databases
- C. Execute queries with elevated privileges
- D. Automatically revoke privileges when a user disconnects
Answer: A
Explanation:
The WITH GRANT OPTION clause allows users to pass on their granted privileges to other users. It essentially enables users with certain privileges to share those privileges without the need for direct intervention by an administrator.
NEW QUESTION # 135
Which datatype would be most appropriate for storing a phone number in MySQL?
- A. INT
- B. TINYINT
- C. VARCHAR
- D. DECIMAL
Answer: C
Explanation:
VARCHAR is the best choice for storing phone numbers because they often contain non-numeric characters like "+" or dashes, and are not used for calculations. INT or DECIMAL would not be suitable since they would strip these characters.
NEW QUESTION # 136
Which column in the mysql.user table defines where a user can connect from?
- A. Role D.
- B. Password
- C. Host User
Answer: C
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 # 137
What is the main benefit of using the HeatWave Cluster in MySQL Database Service?
- A. Improved transaction consistency
- B. Simplified database backups
- C. Enhanced query performance for OLTP workloads
- D. Real-time analytics on large datasets
Answer: D
Explanation:
The main benefit of the HeatWave Cluster is its ability to provide real-time analytics on large datasets by processing queries in-memory, leading to faster query performance for analytical workloads.
NEW QUESTION # 138
Which MySQL Enterprise Edition feature allows you to control database access and permissions at a granular level?
- A. MySQL Workbench
- B. MySQL Replication
- C. MySQL Enterprise Audit
- D. MySQL Role-based Access Control (RBAC)
Answer: D
Explanation:
MySQL Role-based Access Control (RBAC) allows for granular control of user permissions, making it easier to manage database security. It is an important feature of the Enterprise Edition for managing large-scale user access.
NEW QUESTION # 139
......
Revolutionary Guide To Exam Oracle Dumps: https://www.trainingdump.com/Oracle/1Z1-922-practice-exam-dumps.html
Pass 1Z1-922 Exam Latest Practice Questions: https://drive.google.com/open?id=1u8wn80HoFH9tfECJBOS1NpAUPaToO8gO