Successful validation is composed of three parts. Which part is not required?

The correct answer highlights that the label describing the type of data is not a required part of successful validation. In the context of validation, which often involves verifying the integrity and format of data, certain elements play a more direct role in determining whether the validation is successful.

The pattern match itself is essential because it defines the specific criteria that data must meet to be validated. Without this element, there is no basis for comparison against which the incoming data can be assessed. The number of characters between the validation selection and the pattern match is also a critical detail, as it governs how close or far the selected characters must be to the defined pattern, influencing the overall accuracy of the validation process. Additionally, the selected validation characters in a snippet are necessary because they are the specific segments of data being examined against the pattern, making them integral to the evaluation.

In contrast, while the label provides useful context and helps in identifying the type of data being validated, it does not influence the actual validation process. Therefore, it is not strictly required for successful validation, distinguishing it from the other elements that are crucial to achieving validation success.