1Z1-922 Questions PDF [2026] Use Valid New dump to Clear Exam
Passing Oracle 1Z1-922 Exam Using 2026 Practice Tests
NEW QUESTION # 11
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 does not include user privileges in the backup
- C. It cannot be used for point-in-time recovery
- D. It does not support logical backups
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 # 12
What is a logical backup in MySQL?
- A. A backup of the binary logs
- B. A backup of the data directory
- C. A backup of the database structure and data as SQL statements
- D. A backup of the user privileges
Answer: C
Explanation:
A logical backup involves exporting the database structure and data as SQL statements using tools like mysqldump. These backups are portable but can be slower and larger than physical backups.
NEW QUESTION # 13
What is the purpose of the binary log in MySQL?
- A. To store all changes made to the database for recovery and replication
- B. To log user activities and queries
- C. To monitor database performance metrics
- D. To optimize queries by caching execution plans
Answer: A
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 # 14
What does the WITH GRANT OPTION clause do in a GRANT statement?
- A. It removes all privileges from the user
- B. It grants all privileges to a user
- C. It grants a user the ability to pass on their privileges to others
- D. It allows a user to modify their own privileges
Answer: C
Explanation:
The WITH GRANT OPTION clause allows a user to pass on any privileges they have been granted to other users.
NEW QUESTION # 15
Which MySQL feature provides graphical dashboards for real-time performance monitoring?
- A. MySQL Enterprise Monitor
- B. MySQL Enterprise Backup
- C. Performance Schema
- D. MySQL Query Cache
Answer: A
Explanation:
MySQL Enterprise Monitor provides graphical dashboards for real-time performance monitoring, including metrics on CPU, memory, I/O, and query performance, helping administrators to visualize and manage MySQL performance.
NEW QUESTION # 16
What is the purpose of the InnoDB Lock Monitor?
- A. To track query execution times
- B. To manage query cache usage
- C. To log database backups
- 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 # 17
What is the role of MySQL Enterprise Firewall in preventing SQL injection attacks?
- A. Encrypts SQL queries before execution
- B. Provides an audit trail of all queries executed in the database
- C. Monitors and blocks queries that do not match a predefined safe pattern
- D. Optimizes query performance to avoid slow queries
Answer: C
Explanation:
MySQL Enterprise Firewall prevents SQL injection attacks by monitoring and blocking any queries that do not match known, legitimate SQL patterns. It learns from allowed queries and builds an allowlist for future query validation.
NEW QUESTION # 18
Which feature in MySQL Enterprise Edition ensures that backups can be created without locking tables?
- A. MySQL Enterprise Firewall
- B. MySQL Enterprise Backup
- C. MySQL Shell
- D. MySQL Dump
Answer: B
Explanation:
MySQL Enterprise Backup allows for online backups without locking tables, ensuring that the database remains available for transactions during the backup process, which is a significant advantage over traditional mysqldump.
NEW QUESTION # 19
What is the default transaction isolation level in MySQL's InnoDB storage engine?
- A. READ UNCOMMITTED
- B. SERIALIZABLE
- C. READ COMMITTED
- D. REPEATABLE READ
Answer: D
Explanation:
The default transaction isolation level in InnoDB is REPEATABLE READ, which ensures that transactions cannot see changes made by other transactions until they are committed. This level helps to prevent non-repeatable reads and phantom reads.
NEW QUESTION # 20
What is the role of binary logs in MySQL backups?
- A. They contain performance statistics
- B. They record changes made to the database
- C. They store user activity logs
- D. They store copies of MySQL configuration files
Answer: B
Explanation:
Binary logs in MySQL record all changes to the database, including updates, inserts, and deletes. They are critical for point-in-time recovery and replication.
NEW QUESTION # 21
Which of the following is a valid MySQL replication topology?
- A. replication Cross-server
- B. replication Multi-primary
- C. Star replication Circular
- D. replication
Answer: A
Explanation:
Multi-primary replication (also known as multi-master replication) allows multiple servers to act as both a source and a replica, meaning they can accept updates and replicate changes to each other.
NEW QUESTION # 22
Which two settings can be configured in my.cnf to optimize the performance of MySQL?
- A. binlog_format
- B. max_connections
- C. query_cache_size
- D. innodb_buffer_pool_size
Answer: B,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 # 23
Which MySQL replication topology is best suited for geographically distributed databases?
- A. Group replication
- B. Multi-source replication
- C. Primary-replica replication
- D. Circular replication
Answer: B
Explanation:
Multi-source replication allows a single replica to receive updates from multiple primary servers, which can be located in different geographic regions. This topology is useful for geographically distributed databases.
NEW QUESTION # 24
Which two commands can be used to restore a MySQL database from a backup?
- A. mysql < backup.sql
- B. mysql --restore
- C. mysql --start-replication
- D. mysqlbackup --apply-log
Answer: A,D
Explanation:
The mysql < backup.sql command is used to restore a database from a logical backup created by mysqldump. The mysqlbackup command with the --apply-log option is used to prepare a physical backup for restoration.
NEW QUESTION # 25
Which MySQL command is used to monitor the health of InnoDB by displaying transaction information, lock details, and buffer pool statistics?
- A. SHOW STATUS;
- B. SHOW PROCESSLIST;
- C. SHOW VARIABLES;
- D. SHOW ENGINE INNODB STATUS;
Answer: D
Explanation:
The SHOW ENGINE INNODB STATUS; command provides detailed information about InnoDB transactions, locks, buffer pool statistics, and performance metrics, helping administrators to monitor InnoDB health and optimize performance.
NEW QUESTION # 26
Which tool can be used to visualize MySQL metrics, such as CPU usage, memory usage, and disk activity?
- A. MySQL Replication Dashboard
- B. MySQL Workbench
- C. MySQL Enterprise Monitor
- D. MySQL Query Optimizer
Answer: C
Explanation:
MySQL Enterprise Monitor provides a graphical interface to visualize MySQL performance metrics, including CPU usage, memory usage, and disk activity, helping administrators proactively manage their database environment.
NEW QUESTION # 27
What is the purpose of the --compress option in the mysqlbackup command?
- A. To perform an incremental backup
- B. To enable parallel processing of backups
- C. To encrypt the backup
- D. To reduce the size of the backup by compressing data files
Answer: D
Explanation:
The --compress option in mysqlbackup reduces the size of the backup by compressing the data files. This helps save storage space and reduces the time required to transfer the backup over the network.
NEW QUESTION # 28
Which MySQL feature enables multi-factor authentication (MFA) for enhanced security?
- A. MySQL Enterprise Firewall
- B. MySQL Enterprise Backup
- C. MySQL Enterprise Monitor
- D. MySQL Enterprise Authentication
Answer: D
Explanation:
MySQL Enterprise Authentication supports multi-factor authentication (MFA), which enhances security by requiring multiple forms of verification before granting access to the database.
NEW QUESTION # 29
Which of the following is a key benefit of MySQL Group Replication?
- A. It requires no configuration changes
- B. It allows multi-source replication
- C. It provides automatic failover and high availability
- D. It uses binary logs for faster backups
Answer: C
Explanation:
MySQL Group Replication provides high availability by enabling automatic failover. If a primary node fails, another node in the group can take over without manual intervention.
NEW QUESTION # 30
What does the --incremental option in mysqlbackup do?
- A. Restores the database from a previous backup
- B. Backs up only the changes since the last backup
- C. Backs up only the database structure
- D. Backs up only the binary logs
Answer: B
Explanation:
The --incremental option in mysqlbackup backs up only the changes made since the last full or incremental backup, allowing for more efficient backup operations.
NEW QUESTION # 31
Which MySQL feature allows an organization to track user activities for regulatory compliance, such as GDPR or HIPAA?
- A. MySQL InnoDB Cluster
- B. MySQL Enterprise Backup
- C. MySQL Enterprise Audit
- D. MySQL Query Optimizer
Answer: C
Explanation:
MySQL Enterprise Audit logs user activities and access to ensure that organizations can track database operations and meet regulatory compliance standards, such as GDPR or HIPAA.
NEW QUESTION # 32
Which type of replication is typically used in a MySQL InnoDB Cluster for high availability and fault tolerance?
- A. Group replication
- B. Semi-synchronous replication
- C. Multi-source replication
- D. Asynchronous replication
Answer: A
Explanation:
Group replication is the default replication method used in a MySQL InnoDB Cluster. It provides fault tolerance and high availability by replicating transactions to all nodes and handling automatic failover in case of node failure.
NEW QUESTION # 33
Which of the following is a core requirement for setting up a MySQL InnoDB Cluster?
- A. Query caching must be turned off
- B. Full-text indexing must be active
- C. Binary log and GTID must be enabled
- D. Only one node can act as a primary
Answer: C
Explanation:
A core requirement for setting up a MySQL InnoDB Cluster is that binary logs and Global Transaction Identifiers (GTIDs) must be enabled. These are necessary for tracking and applying transactions consistently across all nodes in the cluster.
NEW QUESTION # 34
Which MySQL datatype would you use to store binary data such as images, videos, or files?
- A. CHAR
- B. TEXT
- C. VARCHAR
- D. BLOB
Answer: D
Explanation:
The BLOB (Binary Large Object) datatype is used to store large binary data such as images, videos, or other multimedia files. TEXT is used for large text fields, and CHAR/VARCHAR are for strings.
NEW QUESTION # 35
......
1Z1-922 Study Guide Brilliant 1Z1-922 Exam Dumps PDF: https://www.actual4test.com/1Z1-922_examcollection.html
View 1Z1-922 Exam Question Dumps With Latest Demo: https://drive.google.com/open?id=1zqFQNY0SEl2JukKJnKzcVYb1asVn44fI