Data Validation | MCQs

Explanation

In databases, semantic description defines what kind of data an attribute should store.

Storing "Physics" as an employee name violates the expected semantic meaning of a name (e.g., "John", "Ali").

Explanation

When a computer detects invalid data, it often displays a red triangle or an error indicator to alert the user.

This symbol is commonly used in spreadsheets, databases, and other software applications to indicate that the data is incorrect, inconsistent, or outside of the expected range.

Explanation

Complete Questions

Explanation

The source and method of data collection significantly impact the accuracy of the data.

Different sources might have varying levels of reliability and accuracy.

The method used to collect data, whether through surveys, interviews, experiments,

Or other means can also introduce biases or errors.

For example, a survey with leading questions might yield biased results. 

Explanation

Data integrity is a concept and process that ensures the accuracy, completeness, consistency, and validity of an organization's data