Software Quality Assurance Practice Exam

What issue arises from calculations that involve inconsistent data?

1. Input/Output error

2. Data reference issue

3. Computation error

4. Interface mismatch

The correct answer is: Computation error

Calculations that involve inconsistent data can lead to a computation error, which occurs when the data inputs do not align or conflict with one another. Inconsistent data can manifest in various forms, such as out-of-bounds values, formats that do not match, or different units of measurement that complicate the calculations. When incorrect or incompatible inputs are used in mathematical or logical operations, the output can become invalid, leading to results that are misleading or entirely wrong. This undermines the reliability of any analysis or decision-making based on such computations. The context of the other options provides insight into why they are less relevant to the issue of inconsistent data. Input/Output errors pertain more to problems with data entry or retrieval rather than the integrity of the data itself during calculations. Data reference issues usually involve problems locating or accessing data rather than inconsistencies within the data being calculated. Interface mismatches relate to communication or compatibility failures between systems or components, not necessarily to the internal logic and data handling during computations. Therefore, computation error is the most direct and accurate consequence of using inconsistent data in calculations.