What is the purpose of the InnoDB undo log?

• A.To store data modifications made by SELECT statements
• B.To track uncommitted changes and allow rollback if needed
• C.To store query results for future reference
• D.To ensure data replication between master and slave servers

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Which MySQL backup type requires less storage space and is faster because it backs up only the changed data since the last backup?

• A.Full backup
• B.Logical backup
• C.Incremental backup
• D.Cold backup

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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

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What makes HeatWave particularly suitable for real-time analytics?

• A.It reduces the size of the binary logs
• B.It stores query results on disk for future use
• C.It executes queries directly in memory, avoiding disk I/O
• D.It optimizes transactional queries for consistency

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What is the default transaction isolation level in MySQL's InnoDB storage engine?

• A.READ UNCOMMITTED
• B.READ COMMITTED
• C.REPEATABLE READ
• D.SERIALIZABLE

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