Question

Point out the wrong statement.

(a) Taken as a unit, “Request => Process => Response” is not an atomic transaction

(b) A coherent transaction either succeeds and is enacted, or fails and is rolled back

(c) When rollback is not possible due to optimistic transaction commitment in a multiuser application, durability requires correcting the condition

(d) None of the mentioned

I had been asked this question during a job interview.

Question is taken from Applications in the Clouds topic in section Moving Applications to the Cloud of Cloud Computing

Answer 1

Correct option is (a) Taken as a unit, “Request => Process => Response” is not an atomic transaction

The explanation: Taken as a unit, “Request => Process => Response” is an atomic transaction.