Free Google Professional Data Engineer Actual Exam Questions - Question 10 Discussion

Question No. 10
You are using Cloud Bigtable to persist and serve stock market data for each of the major indices. To
serve the trading application, you need to access only the most recent stock prices that are streaming
in How should you design your row key and tables to ensure that you can access the data with the
most simple query?
Select one option, then reveal solution.
US
AK
Ahmed K.
2026-02-12

This one feels like B for me too. Creating a small set of charts with filters makes sense since you can avoid the explosion of visuals in A or C and skip the heavy lifting of building a custom app in D. Plus, filters let users drill down on geography or date range without needing new visuals each month. As long as the data source supports quick queries, this should keep load times manageable and reports fresh without extra maintenance.

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TU
Tom U.
2026-01-24

Not C, spreadsheets won’t scale well with 50,000 installations and frequent updates. B sounds better since filters keep it dynamic without overwhelming the system.

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PR
Paul R.
2026-01-18

B imo, it’s way easier to manage filters than creating tons of static charts like A or C. Plus, it keeps the report dynamic and fast without extra coding like D.

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PR
Paul R.
2026-01-17

Probably B makes the most sense here since it lets users filter and drill down without needing tons of separate charts. A and C sound way too manual and hard to maintain.

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RT
Ryan T.
2026-01-15

Sounds like option B would be more flexible without overcomplicating things.

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