DataProvider Error

In page object with cucumber

1: I have to fill up form which has some mandatory fields and some non mandatory.

2: In scenario i have data

|FName|LName|DOB|Mobile|Email|Address|Hobbies|Subjects|

3: I filled up all fields first and create data provider for this step

4: It works fine and filled up all fields and submit form at the end by clicking on submit button

My question is if we have to do positive scenario just only filling up Mandatory fields and leve empty non mandatory fields to check the form submit successfully or not? Is this possible with same dataprovider

Second if we have to do negative testing to leave one or more than one mandatory fields empty and click on submit button, will it work with same dataprovider

Can we use same dataprovider for testing to run it multiple times by leaving any field mandatory or non mandatory to check our scenarios?

Please update on this