Concurrency Control in Database Management Systems Quiz

• To coordinate the simultaneous execution of transactions while preserving data integrity (correct)
• To optimize database performance
• To eliminate data redundancy
• To reduce database storage space

• A data update is lost during the concurrent execution of transactions (correct)
• An update that increases data consistency
• An update that is applied twice to the same data
• An update that is rolled back automatically

• Data that is permanently stored in the database
• A transaction accesses uncommitted data from another transaction (correct)
• Data that is isolated from other transactions
• Data that is consistent across all transactions

<p>To prevent users from accessing incomplete or incorrect data (B)</p> Signup and view all the answers

<p>One transaction updating data while another is reading it (D)</p> Signup and view all the answers