SSCP · Question #237
External consistency ensures that the data stored in the database is:
The correct answer is D. consistent with the real world. In the Clark-Wilson model, external consistency means that data stored in the system accurately reflects the real-world entities or state it is intended to represent. For example, a bank balance in a database should match the actual money held. This is contrasted with internal…
Question
External consistency ensures that the data stored in the database is:
Options
- Ain-consistent with the real world.
- Bremains consistant when sent from one system to another.
- Cconsistent with the logical world.
- Dconsistent with the real world.
How the community answered
(22 responses)- A5% (1)
- B9% (2)
- D86% (19)
Explanation
In the Clark-Wilson model, external consistency means that data stored in the system accurately reflects the real-world entities or state it is intended to represent. For example, a bank balance in a database should match the actual money held. This is contrasted with internal consistency (data within the system has no internal contradictions). Answer A (inconsistent with the real world) is the opposite, B describes data transmission integrity, and C ('logical world') is a vague/incorrect term not used in this context.
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