Databricks Certified Data Analyst Associate Exam - Topic 4 Question 12 Discussion

Actual exam question for Databricks's Databricks Certified Data Analyst Associate exam

Question #: 12
Topic #: 4

[All Databricks Certified Data Analyst Associate Questions]

An analyst writes a query that contains a query parameter. They then add an area chart visualization to the query. While adding the area chart visualization to a dashboard, the analyst chooses "Dashboard Parameter" for the query parameter associated with the area chart.

Which of the following statements is true?

AThe area chart will use whatever is selected in the Dashboard Parameter while all or the other visualizations will remain changed regardless of their parameter use.

BThe area chart will use whatever is selected in the Dashboard Parameter along with all of the other visualizations in the dashboard that use the same parameter.

CThe area chart will use whatever value is chosen on the dashboard at the time the area chart is added to the dashboard.

DThe area chart will use whatever value is input by the analyst when the visualization is added to the dashboard. The parameter cannot be changed by the user afterwards.

EThe area chart will convert to a Dashboard Parameter.
A Dashboard Parameter is a parameter that is configured for one or more visualizations within a dashboard and appears at the top of the dashboard.The parameter values specified for a Dashboard Parameter apply to all visualizations reusing that particular Dashboard Parameter1. Therefore, if the analyst chooses ''Dashboard Parameter'' for the query parameter associated with the area chart, the area chart will use whatever is selected in the Dashboard Parameter along with all of the other visualizations in the dashboard that use the same parameter.This allows the user to filter the data across multiple visualizations using a single parameter widget2.Reference:Databricks SQL dashboards,Query parameters

Show Suggested Answer

Suggested Answer: E

A user-defined function (UDF) is a function defined by a user, allowing custom logic to be reused in the user environment1.To apply a UDF to a table, the syntax isSELECT udf_name(column_name) AS alias FROM table_name2. Therefore, option E is the correct way to use the UDFpriceto create a new columncustomer_pricebased on the existing columnscustomer_spendandcustomer_unitsfrom the tablecustomer_summary.Reference:

What are user-defined functions (UDFs)?

User-defined scalar functions - SQL

by Cristina at Apr 30, 2024, 12:56 AM

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Franchesca

6 months ago

D is definitely wrong; parameters can be changed after adding!

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Reta

6 months ago

I’m leaning towards A, but it seems a bit off.

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Paola

6 months ago

Wait, how does option E even work? Sounds confusing.

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Erick

7 months ago

Totally agree, B makes the most sense!

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Ernest

7 months ago

I think option B is correct. All visualizations should sync with the Dashboard Parameter.

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Leonora

7 months ago

I recall that if a visualization uses a dashboard parameter, it should apply to all visualizations using that parameter, which makes option B sound correct.

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Franklyn

7 months ago

I feel like the area chart would only use the value at the time it was added, but that seems too limiting.

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Joseph

7 months ago

I think I practiced a similar question where the parameter affected multiple visualizations, so I might lean towards option B.

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Lindy

8 months ago

I remember something about how dashboard parameters work, but I'm not entirely sure if they affect all visualizations or just the one.

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Noel

8 months ago

I'm pretty confident that the correct answer is B. The area chart will use the Dashboard Parameter, and all the other visualizations that use the same parameter will be affected as well. Gotta love those dashboard-level parameters that make filtering so much easier.

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Staci

8 months ago

Okay, I think I've got it now. The area chart will use the Dashboard Parameter, and that parameter will apply to all the other visualizations on the dashboard that use the same parameter. So the user can filter the data across the whole dashboard using a single parameter widget. Nice!

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Jacquelyne

8 months ago

Hmm, I'm a bit confused. Does the area chart use the Dashboard Parameter, or does it just use whatever value is input when the visualization is added to the dashboard? I'll need to re-read this a few times to make sure I understand.

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Eliseo

8 months ago

This seems pretty straightforward. The key is that the analyst chose "Dashboard Parameter" for the query parameter, so the area chart will use whatever is selected in that parameter, along with all the other visualizations that use the same parameter.

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Ivan

8 months ago

Wait, I thought the triple constraints were time, quality, and scope. Or was it scope, time, and cost? I'm getting a bit mixed up here. Gotta review my notes on this.

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Kathrine

8 months ago

I have a feeling it's option D because price discounts typically aren't tied to provider behavior, but I'm not completely confident.

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Reuben

8 months ago

The contract details are important here. I'll make sure to read through that part of the question closely.

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Latrice

1 year ago

This question is giving me flashbacks to that time I accidentally deleted the entire dashboard during a client presentation. Good times, good times. But I think the right answer is B.

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Simona

11 months ago

No problem! Always good to brush up on dashboard configurations.

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Loreta

11 months ago

That's good to know for future reference. Thanks for clarifying!

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Alease

11 months ago

Yeah, I agree. The area chart will use whatever is selected in the Dashboard Parameter along with all the other visualizations.

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Alline

12 months ago

I think you're right, answer B seems to be the correct one.

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Sena

1 year ago

Hmm, this one's got me stumped. I'm going to go with E, just because I've heard that dashboard parameters can be pretty magical. Maybe it'll turn the area chart into a portal or something!

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Buck

12 months ago

Oh, I see! Thanks for clarifying. Dashboard parameters do sound pretty cool.

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Refugia

12 months ago

Actually, the correct answer is B. The area chart will use whatever is selected in the Dashboard Parameter along with all of the other visualizations in the dashboard that use the same parameter.

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Amie

12 months ago

I think E is a good choice, dashboard parameters are indeed magical!

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Brandee

1 year ago

Ha, this question is a real head-scratcher! I'm going to have to go with D, just to see what happens. Who knows, maybe the analyst was feeling mischievous and locked the parameter.

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Rosalyn

12 months ago

I agree, B seems like the safest option to maintain consistency across the dashboard.

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Rosann

12 months ago

I would go with B, just to play it safe and ensure all visualizations are linked.

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Quentin

1 year ago

I think D is a risky choice, but it could lead to some interesting results.

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Shawn

1 year ago

I'm not sure, but I think answer B is the most logical choice based on the explanation provided.

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Coral

1 year ago

I agree with Reuben, answer B makes sense because all visualizations in the dashboard will use the same parameter.

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Lorean

1 year ago

Whoa, hold up! I thought dashboard parameters were only for filtering, not for the actual data in the visualizations. This is tricky, but I think the answer is C.

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Golda

1 year ago

Yeah, it's interesting how they can actually affect the data in the visualizations. Answer C does make sense now.

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Iesha

1 year ago

I always thought dashboard parameters were just for filtering too. This is new information.

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Reuben

1 year ago

I think the correct answer is B.

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Fletcher

1 year ago

I'm not sure, but I think answer B is the most logical choice based on the explanation provided.

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Frankie

1 year ago

Ah, finally a question that tests my understanding of dashboard parameters! I'm pretty sure the answer is B, since the area chart should use the same parameter as the other visualizations on the dashboard.

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