In a banking system, a transaction T1 transfers ₹300 from Account A to Account…

BEL Probationary Engineer · 2025 · Computer Science · Technical

In a banking system, a transaction T1 transfers ₹300 from Account A to Account B. Balances are stored in a table Accounts(AccNo, Balance) with the constraint:

CHECK (Balance >= 0)

Suppose the following sequence occurs:

1. T1 deducts ₹300 from Account A.

2. System crashes before adding ₹300 to Account B.

3. The system restarts without recovery.

Which component of ACID has been compromised to the greatest extent in this case?

  1. A.

    Consistency

  2. B.

    Durability

  3. C.

    Atomicity

  4. D.

    Isolation

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