A transaction manager is which of the following? Options: A . &nbspMaintains a log of transactions B . &nbspMaintains before and after database images C . &nbspMaintains appropriate concurrency control D . &nbspAll of the above

A transaction manager is which of the following?

Question

A transaction manager is which of the following?

Options:

A . Maintains a log of transactions

B . Maintains before and after database images

C . Maintains appropriate concurrency control

D . All of the above

Answer: Option D

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