Exam DP-900 topic 1 question 270 discussion

Actual exam question from Microsoft's DP-900

Question #: 270
Topic #: 1

A bank needs to ensure that a transaction involving debiting funds from a source account and crediting the same funds to a destination account must complete both actions. If either action falls to complete, the other action must fail.

Of which ACID semantic is this an example?

A. consistency
B. durability
C. atomicity
D. isolation

Show Suggested Answer

Suggested Answer: C 🗳️

by FeRuch at Nov. 17, 2023, 10:55 p.m.

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Kebedegn

2 months, 1 week ago

Selected Answer: C

c is right answer

upvoted 1 times

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Kapello10

8 months, 1 week ago

Atomicity guarantees that each transaction is treated as a single "unit", which either succeeds completely or fails completely: if any of the statements constituting a transaction fails to complete, the entire transaction fails and the database is left unchanged Consistency ensures that a transaction can only bring the database from one consistent state to another, preserving database invariants: any data written to the database must be valid according to all defined rules Isolation ensures that concurrent execution of transactions leaves the database in the same state that would have been obtained if the transactions were executed sequentially Durability guarantees that once a transaction has been committed, it will remain committed even in the case of a system failure (e.g., power outage or crash).

upvoted 4 times

Kapello10

8 months, 1 week ago

Ans is C Atomicty

upvoted 3 times

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