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GIAC GSNA Exam - Topic 6 Question 14 Discussion
Topic #: 6
ACID (atomicity, consistency, isolation, and durability) is an acronym and mnemonic device for learning and remembering the four primary attributes ensured to any transaction by a transaction manager. Which of the following attributes of ACID confirms that the committed data will be saved by the system such that, even in the event of a failure or system restart, the data will be available in its correct state?
Durability is the attribute of ACID which confirms that the committed data will be saved by the system such that, even in the event of a failure or system restart, the data will be available in its correct state.
Answer B is incorrect. Atomicity is the attribute of ACID which confirms that, in a transaction involving two or more discrete pieces of
information, either all of the pieces are committed or none are.
Answer D is incorrect. Consistency is the attribute of ACID which confirms that a transaction either creates a new and valid state of
data, or, if any failure occurs, returns all data to its state before the transaction was started.
Answer C is incorrect. Isolation is the attribute of ACID which confirms that a transaction in process and not yet committed must remain isolated from any other transaction.
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