Google Cloud Professional Data Engineer PDE — Topic 1 Question 183

Question

You are using 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 simplest query?

Accepted Answer

Correct answer: D. The correct answer is D. Option D: For each index, have a separate table and use a reverse timestamp as the row key design. This option meets the real-time / low-latency performance requirement.

Google Cloud Professional Data Engineer PDE — Question 183