Question

What in an Access database can help prevent GIGO?

A. Correct data types for fields.
B. Appropriately defined validation rules.
C. Input masks.
D. Properly established field sizes.
E. All of the above.

Answer 1

The Access database features that can help prevent GIGO are correct data types, validation rules, input masks, and properly established field sizes.

Step-by-step explanation:

The correct answer is E. All of the above.

In an Access database, several features can help prevent GIGO (Garbage In, Garbage Out).

1. Correct data types for fields: Setting the appropriate data type for each field in the database ensures that only valid and accurate data is entered. For example, using the 'Number' data type for a field that should only contain numerical values.
2. Appropriately defined validation rules: Validation rules allow for the implementation of specific criteria for data entry. For instance, a validation rule can be set to only allow values between a certain range or format, such as a date or email address.
3. Input masks: Input masks define the format in which data should be entered. They can help ensure that data is entered correctly by guiding the user through a predetermined pattern. An example is entering phone numbers in a specific format.
4. Properly established field sizes: Field sizes limit the number of characters that can be entered in a field. By setting appropriate field sizes, errors caused by data exceeding the allowed length can be prevented.