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Which of the following property defines a transaction as something that cannot be subdivided and must be completed or abandoned as a unit?

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Which of the following property defines a transaction as something that cannot be subdivided and must be completed or abandoned as a unit?

(a) Atomicity

(b) Consistency

(c) Isolation

(d) Durability

I got this question during a job interview.

My enquiry is from Applications in the Clouds topic in portion Moving Applications to the Cloud of Cloud Computing

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Right answer is (a) Atomicity

For explanation: The isolation property states that the system cannot have other transactions operate on data that is currently being processed by a transaction.

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