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UPDATED Oracle 1Z0-922 Exam Questions & Answer

NEW QUESTION # 13
Which MySQL Enterprise Edition feature allows you to recover a database to a specific point in time?

• A. MySQL Enterprise Backup
• B. MySQL Enterprise Audit
• C. MySQL Enterprise Monitor
• D. MySQL Dump

Answer: A

Explanation:
MySQL Enterprise Backup allows for point-in-time recovery, which is essential for disaster recovery. This feature enables you to restore the database to a specific point before an incident occurred.

NEW QUESTION # 14
What does MySQL InnoDB Cluster's use of Group Replication ensure?

• A. Backup files are compressed
• B. High performance for read-heavy workloads
• C. Transactions are asynchronously replicated
• D. Automatic fault tolerance and failover

Answer: D

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 # 15
Which MySQL datatype should be used to store true or false values?

• A. BOOLEAN
• B. ENUM
• C. VARCHAR
• D. TINYINT

Answer: A

Explanation:
The BOOLEAN datatype is used to store true or false values in MySQL. Internally, it is stored as a TINYINT, with 0 representing false and 1 representing true.

NEW QUESTION # 16
Which component is responsible for managing data movement between MySQL and HeatWave?

• A. MySQL Router
• B. HeatWave Data Manager
• C. MySQL Enterprise Monitor
• D. MySQL Query Optimizer

Answer: B

Explanation:
The HeatWave Data Manager manages the movement of data between MySQL and HeatWave to ensure that analytic queries run on the in-memory nodes in the HeatWave Cluster, improving performance.

NEW QUESTION # 17
Which command is used to configure MySQL Enterprise Audit to start logging database events?

• A. SET audit_log_enable = ON;
• B. GRANT AUDIT ON *.* TO 'audit_user';
• C. CREATE AUDIT TRAIL FOR 'audit_user';
• D. INSTALL PLUGIN audit_log;

Answer: D

Explanation:
To enable MySQL Enterprise Audit, the audit log plugin must first be installed with the INSTALL PLUGIN audit_log; command. This plugin logs various database events, such as user logins and queries.

NEW QUESTION # 18
Which feature of MySQL Enterprise Firewall helps in detecting malicious queries over time?

• A. Logging failed user logins
• B. Replication monitoring
• C. Real-time encryption of data
• D. Learning and building a list of trusted query patterns

Answer: D

Explanation:
MySQL Enterprise Firewall learns legitimate SQL query patterns over time and builds an allowlist. Queries that deviate from these learned patterns are flagged as suspicious, helping to detect malicious activity.

NEW QUESTION # 19
Which of the following does MySQL Enterprise Firewall provide?

• A. Automatic database failover
• B. Database backup scheduling
• C. Real-time database query blocking
• D. High availability and load balancing

Answer: C

Explanation:
MySQL Enterprise Firewall works by analyzing incoming queries in real time and blocking unauthorized or potentially harmful queries, such as those that might be part of a SQL injection attack.

NEW QUESTION # 20
What is the key benefit of using compressed backups with MySQL Enterprise Backup?

• A. Faster backup times
• B. Improved database performance during backups
• C. Reduced storage requirements for the backup files
• D. Increased encryption levels for the backup

Answer: C

Explanation:
Compressed backups reduce the size of the backup files, which in turn minimizes storage requirements. This is especially useful for large databases or when storing backups on external or cloud storage.

NEW QUESTION # 21
Which of the following SQL commands is blocked by default in MySQL Enterprise Firewall if it detects it as suspicious or unauthorized?

• A. SELECT
• B. DESCRIBE
• C. DROP DATABASE
• D. INSERT

Answer: C

Explanation:
MySQL Enterprise Firewall can block destructive SQL commands, such as DROP DATABASE, if these commands are not part of the normal query patterns learned by the firewall, preventing unauthorized database modification or deletion.

NEW QUESTION # 22
Which of the following reduces disk I/O operations in MySQL?

• A. Disabling binary logging
• B. Enabling the general log
• C. Enabling the query cache
• D. Increasing the InnoDB buffer pool size

Answer: D

Explanation:
Increasing the size of the InnoDB buffer pool allows more data and index pages to be cached in memory, reducing the need for disk I/O operations.

NEW QUESTION # 23
In MySQL Group Replication, how is data consistency maintained across all members?

• A. quorum before committing transactions By allowing all
• B. By using asynchronous replication By requiring a
• C. nodes to apply changes independently By copying all
• D. binary logs to every member

Answer: A

Explanation:
MySQL Group Replication ensures data consistency by requiring a quorum (a majority of nodes) to agree before committing transactions. This prevents conflicting changes and ensures consistency across all members.

NEW QUESTION # 24
In MySQL replication, which component ensures the replica is synchronized with the primary?

• A. The binary log
• B. The performance schema
• C. The query cache
• D. The relay log

Answer: D

Explanation:
The relay log stores the updates from the primary server and applies them to the replica server, ensuring the replica is synchronized with the primary.

NEW QUESTION # 25
What type of tool is MySQL Enterprise Audit?

• A. Monitoring tool for performance
• B. Security tool for tracking user actions
• C. Replication tool for master-slave databases
• D. Backup tool for managing database dumps

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 # 26
Which statement is used to create a new table in MySQL?

• A. NEW TABLE
• B. CREATE TABLE
• C. CREATE NEW TABLE
• D. CREATE DB_TABLE

Answer: B

Explanation:
In MySQL, the CREATE TABLE statement is used to create a new table in a database.

NEW QUESTION # 27
Which MySQL command is used to back up binary logs?

• A. mysqlbackup --binlog-backup
• B. mysqldump --log-backup
• C. mysqlbinlog
• D. mysqlbinlog --backup

Answer: C

Explanation:
The mysqlbinlog utility is used to back up and analyze the contents of binary logs in MySQL. It allows you to view or extract the SQL statements contained within the logs.

NEW QUESTION # 28
What does the SHOW PROCESSLIST command display?

• A. The query execution plan
• B. The list of current database users
• C. The list of database tables
• D. The list of active threads and queries

Answer: D

Explanation:
The SHOW PROCESSLIST; command displays a list of active threads and queries currently running on the MySQL server. It is useful for identifying slow or problematic queries.

NEW QUESTION # 29
Which option allows for incremental backups with mysqlbackup?

• A. --full
• B. --log-backup
• C. --apply-log
• D. --incremental

Answer: D

Explanation:
The --incremental option in mysqlbackup allows for incremental backups, where only the changes made since the last backup are saved. This reduces backup time and storage requirements.

NEW QUESTION # 30
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