Exam TDA-C01 topic 1 question 42 discussion

U need to set a referenced calculated field to the parameter and then bring the calculated field to the fiter zone. Afterwards you need to set to True the calculated filter then you're done.so the answer is B

B is correct. You must add a filter to trigger the parameter in your sheet.

Question is clearly mentioned "Parameter" SO we use the calculation filed. B Is correct

I did the various examples and B is the correct answer. You can either create create a calculated field or you can add the same code in the condition tab of the Filter to tie the filtering to the parameter. Hence, the answer is B.

I think B is the correct answer because we created a parameter name choose regio. So we need to add it into a filter card

I think the selected answer, B is correct

No, answer C is wrong. Of course, you can add Region to filters card but the question was about the parameter Choose Region and how to use it as a filter to interact with a chart. If we just add Region to filters card it has nothing to do with parameter and we can use this filter without parameter at all. That is why answer C is not the case. So we already have a parameter. Next we need to create a calculated field with formula [Region] = [Choose Region]. After that we put calculated field to filters card and set it to True. After we click show parameter and use it as a filter. This is how it works. So the right answer is B.

https://kb.tableau.com/articles/howto/filtering-data-with-a-parameter?lang=fr-fr

c-Add region to the filters card