Answer:
D
Explanation:
because you use all of those
The only sure way to prevent SQL Injection attacks is input validation and parametrized queries including prepared statements. The application code should never use the input directly. ... Database errors can be used with SQL Injection to gain information about your database.
Answer: A. Validation rule
Explanation:
Validation rules can be used to ensure that fields are populated because they can verify if the data being inputted meet the requirements of the administrators by returning a 'True' or 'False' response after testing. If the result is false, the user will be unable to move on until they adjust the field.
For example, Field length checks on websites are a Validation rule where you are only allowed to input a set number of characters and anything less or more will be denied, such as in the case of inputting phone numbers.
By including a Validation Rule that the LeadSource field of the Lead record be populated when a Lead is converted, the developer will be able to make sure that a user populates the Lead Source field prior to converting a Lead.
