Exam CRT-450 topic 1 question 11 discussion

Actual exam question from Salesforce's CRT-450

Question #: 11
Topic #: 1

A developer working on a time management application wants to make total hours for each timecard available to application users. A timecard entry has a Master-
Detail relationship to a timecard.
Which approach should the developer use to accomplish this declaratively?

A. A Visualforce page that calculates the total number of hours for a timecard and displays it on the page
B. A Roll-Up Summary field on the Timecard Object that calculates the total hours from timecard entries for that timecard
C. A Process Builder process that updates a field on the timecard when a timecard entry is created
D. An Apex trigger that uses an Aggregate Query to calculate the hours for a given timecard and stores it in a custom field

Show Suggested Answer

Suggested Answer: B 🗳️

by CSYU at June 17, 2023, 4:20 p.m.

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SS1121

1 year ago

Selected Answer: B

B is correct, as option A is not declarative.

upvoted 3 times

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PriyankN

1 year, 4 months ago

B is correct

upvoted 2 times

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HRVMMRVH

1 year, 10 months ago

Certainly not A, since a declarative solution is needed. It should be B. Hours can be stored as number field on Timesheet entry records.

upvoted 3 times

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CSYU

2 years ago

Selected Answer: A

The answer is def A Although it's a Master-detail relationship, we can't use a roll-up summary field on date/time field when using SUM type. It's available only when using MAX/MIN as described in the Help page. When the developer wants to know total hours, he can use an Apex code and as the total hours doesn't have to be saved in DB in this case, so the answer is A.

upvoted 1 times

9868452

9 months, 2 weeks ago

Yes, that's true, but in the scenario it doesn't mention that the field is a date/time type field either. And someone has also pointed out that the answer needs to be a declarative one according to the question given - visualforce pages are programmatic solutions.

upvoted 1 times

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CSYU

2 years ago

When it comes to the field type is Number, the answer can be B. The question is too abstract...

upvoted 2 times

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mariamarlenepereira9

1 year, 6 months ago

Total (number of) hours = SUM, so this can be achieved using a roll up summary field

upvoted 1 times

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