Updated Dec-2025 Test Engine to Practice 1Z0-922 Test Questions
1Z0-922 Real Exam Questions Test Engine Dumps Training With 360 Questions
NEW QUESTION # 133
Which datatype in MySQL would you use to store a single character?
- A. ENUM
- B. VARCHAR(1)
- C. TEXT
- D. CHAR(1)
Answer: D
Explanation:
CHAR(1) is the ideal datatype for storing a single character. It is a fixed-length datatype, which is more efficient for storing a known number of characters.
NEW QUESTION # 134
Which two types of logs are essential for MySQL replication to function?
- A. Relay log
- B. General log
- C. Binary log
- D. Error log
Answer: A,C
Explanation:
The binary log records all changes made on the primary server, while the relay log on the replica stores the changes that need to be applied to the replica server. Both logs are essential for replication to function properly.
NEW QUESTION # 135
What is the primary benefit of using incremental backups over full backups in MySQL?
- A. Incremental backups restore faster than full backups Incremental
- B. only useful for binary log recovery
- C. backups do not require any full backups Incremental backups are
- D. Incremental backups are faster and consume less storage space
Answer: D
Explanation:
The primary benefit of incremental backups is that they are faster to perform and consume less storage space compared to full backups. This is because they only back up the changes made since the last backup, reducing the amount of data stored and the time required for each backup operation.
NEW QUESTION # 136
How can you schedule automated backups of a MySQL database in a Linux environment?
- A. By running the mysqlbinlog command regularly
- B. By using cron to schedule backup commands
- C. Using the mysqlbackup --schedule command
- D. By configuring the my.cnf file for automated backups
Answer: B
Explanation:
Automated backups in a Linux environment are typically scheduled using cron jobs, which allow you to run MySQL backup commands (such as mysqldump or mysqlbackup) at predefined intervals.
NEW QUESTION # 137
What does the SELECT privilege allow a user to do in MySQL?
- A. Create new databases
- B. Insert new records
- 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 # 138
Which of the following backup methods does MySQL Enterprise Backup use to back up InnoDB tables?
- A. Logical backup
- B. Physical backup
- C. Binary log backup
- D. Full-text indexing
Answer: B
Explanation:
MySQL Enterprise Backup performs physical backups of InnoDB tables by copying the actual data files and log files. This method is faster and more efficient than logical backups for large datasets.
NEW QUESTION # 139
Which two features are offered by MySQL Enterprise Authentication?
- A. Monitoring database performance
- B. Support for multi-factor authentication (MFA)
- C. Automatic database backups
- D. Integration with LDAP for external authentication
Answer: B,D
Explanation:
MySQL Enterprise Authentication integrates with external authentication systems such as LDAP and Active Directory and also supports multi-factor authentication (MFA) for enhanced security, ensuring users are authenticated through multiple verification methods.
NEW QUESTION # 140
What is the default transaction isolation level in MySQL's InnoDB storage engine?
- A. REPEATABLE READ
- B. READ COMMITTED
- C. SERIALIZABLE
- D. READ UNCOMMITTED
Answer: A
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 # 141
What does MySQL InnoDB Cluster's use of Group Replication ensure?
- A. Transactions are asynchronously replicated
- B. High performance for read-heavy workloads
- C. Automatic fault tolerance and failover
- D. Backup files are compressed
Answer: C
Explanation:
Group Replication in MySQL InnoDB Cluster ensures automatic fault tolerance and failover, allowing the cluster to continue operating if one node fails by automatically promoting another node to take over as the primary server.
NEW QUESTION # 142
Which MySQL privilege is required for a user to manage user accounts (create, alter, or drop users)?
- A. SUPER
- B. EXECUTE
- C. INSERT
- D. CREATE USER
Answer: D
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 # 143
Which statement best describes asynchronous replication in MySQL?
- A. The primary server does not wait for the replica to confirm changes before committing
- B. The primary server waits for all replicas to apply changes before committing
- C. Changes are applied to the replica in real time
- D. The replica is always up to date with the primary
Answer: A
Explanation:
In asynchronous replication, the primary server does not wait for the replica to confirm that changes have been applied. This can result in the replica lagging behind the primary in real time.
NEW QUESTION # 144
Which MySQL component is responsible for handling transactions and ensuring ACID compliance?
- A. InnoDB Storage Engine
- B. MySQL Buffer Pool
- C. Query Optimizer
- D. MySQL Replication
Answer: A
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 # 145
Which of the following configurations does MySQL Enterprise Authentication provide for password security?
- A. Enforcing password expiration
- B. Disabling password complexity
- C. Allowing plain-text password storage
- D. Disabling password history
Answer: A
Explanation:
MySQL Enterprise Authentication can enforce security policies such as password expiration, ensuring that passwords are regularly updated to maintain strong authentication.
NEW QUESTION # 146
Which option allows MySQL Enterprise Backup to encrypt backup data for security purposes?
- A. --encrypt
- B. --backup-secure
- C. --backup-encryption
- D. --apply-log
Answer: A
Explanation:
The --encrypt option in MySQL Enterprise Backup is used to encrypt backup data, ensuring that sensitive data is protected during the backup process. Encryption is critical when storing backups in insecure environments or transmitting them over the network.
NEW QUESTION # 147
Which of the following is a primary goal of using the Performance Schema in MySQL?
- A. To enable real-time backups
- B. To monitor resource consumption and track performance bottlenecks
- C. To monitor replication lag
- D. To manage user access control
Answer: B
Explanation:
The Performance Schema is used to monitor resource consumption (CPU, memory, I/O) and track performance bottlenecks in MySQL. It provides detailed insights into the server's operational aspects, which help in performance tuning and optimization.
NEW QUESTION # 148
What key advantage does MySQL Enterprise Edition offer over the Community Edition?
- A. No need for a license
- B. Advanced security features like encryption
- C. Completely free for commercial use
- D. Faster query processing
Answer: B
Explanation:
MySQL Enterprise Edition offers advanced security features such as data encryption, audit logging, and a firewall. These features help ensure compliance with industry regulations and protect sensitive data, which are not available in the Community Edition. The Community Edition is also free but lacks these advanced tools.
NEW QUESTION # 149
Which of the following describes a key feature of MySQL Enterprise Firewall?
- A. Real-time query encryption
- B. Learning and blocking unauthorized SQL statements
- C. Improving query execution time
- D. Performing database backups
Answer: B
Explanation:
MySQL Enterprise Firewall learns legitimate SQL query patterns by analyzing traffic and then blocks unauthorized or suspicious queries in real time, thus providing protection against threats like SQL injection attacks.
NEW QUESTION # 150
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