Question

Being serializable implies that the schedule is a correct schedule: The interleaving is appropriate and will result in a state as if the transactions were serially executed, yet will achieve efficiency due to _____?

1) concurrency control
2) data consistency
3) transaction isolation
4) deadlock prevention

Answer 1

A serializable schedule ensures transactions yield a state equivalent to their serial execution, with efficiency derived from concurrency control mechanisms.

Step-by-step explanation:

Being serializable implies that the schedule is a correct schedule. The interleaving is appropriate and will result in a state as if the transactions were serially executed. The efficiency gained in a serializable schedule comes from concurrency control.

While data consistency and transaction isolation are indeed goals of concurrency control, and deadlock prevention is a related concern, it is the mechanisms of concurrency control that directly enable systems to efficiently manage the execution of multiple transactions in a way that preserves consistency as if the transactions were executed serially.