Exam Platform-App-Builder Topic 5 Question 69 Discussion

Actual exam question for Salesforce's Platform-App-Builder exam
Question #: 69
Topic #: 5
Northern Trail Outfitters (NTO) has created the custom objects Trail and Park in Salesforce to track parks and trails respectively. NTO wants to track the total number of trails a park has on the park record without writing any code. Which two actions should an app builder take to accomplish this requirement? Choose 2 answers

Suggested Answer: A,C Vote an answer

The correct answers are A. Use a master-detail relationship between the Park and Trail objects and C.
Use a roll-up summary field on the Park record to show the total number of trails .
To show the total number of child Trail records on the parent Park record without code, the app builder should use a roll-up summary field . Salesforce documentation states that roll-up summary fields display values on a master record based on related detail records.
That means Park should be the master object and Trail should be the detail object. Then a roll-up summary field on Park can count the related Trail records.
B is incorrect because standard lookup relationships do not support roll-up summary fields.
D is incorrect because a formula field cannot count multiple child records.

by Kelly at Oct 04, 2026, 11:06 PM

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