Which field is required to achieve this declaratively? A platform developer needs to implement a declarative solution that will display the most recent closed won date for all opportunity records associated with an account.

Options::
A. Roll-up summary field on the opportunity object
B. Cross-object formula field on the account object
C. Roll-up summary field on the account object
D. Cross-object formula field on the opportunity object




For this question,most of the blogs say, " Roll up Summary feild on  acc object" is tha answer


But as per my knowledge on salesforce so far, we will not be able to use Standard object on Detailed side.Please correct if I am wrong and explain me in detailed.

 I say ,this is the answer " Cross-object formula field on the opportunity object"


 

Hi I am preparing for Saleforce Developer certification (PD-01) , I came acroos the below question.

A developer wants multiple test classes to use the same set of test data?

As per my kowledge , answer should be 'create set up method for each test class'

But in dump paper, it says,  "use seealldata==true annotaton in the test class"

i am not getting how it works, please explain.

Also please share dumps if u have

Which field is required to achieve this declaratively? A platform developer needs to implement a declarative solution that will display the most recent closed won date for all opportunity records associated with an account.

Options::
A. Roll-up summary field on the opportunity object
B. Cross-object formula field on the account object
C. Roll-up summary field on the account object
D. Cross-object formula field on the opportunity object




For this question,most of the blogs say, " Roll up Summary feild on  acc object" is tha answer


But as per my knowledge on salesforce so far, we will not be able to use Standard object on Detailed side.Please correct if I am wrong and explain me in detailed.

 I say ,this is the answer " Cross-object formula field on the opportunity object"