You Are Analyzing the Price of a Company's Stock

question 216

Multiple Choice

You are analyzing the price of a company's stock. Every 5 seconds, you need to compute a moving average of the past 30 seconds' worth of data. You are reading data from Pub/Sub and using DataFlow to conduct the analysis. How should you set up your windowed pipeline?

• A) Use a fixed window with a duration of 5 seconds. Emit results by setting the following trigger: AfterProcessingTime.pastFirstElementInPane().plusDelayOf(Duration.standardSeconds(30))
• B) Use a fixed window with a duration of 30 seconds. Emit results by setting the following trigger: AfterWatermark.pastEndOfWindow().plusDelayOf(Duration.standardSeconds(5))
• C) Use a sliding window with a duration of 5 seconds. Emit results by setting the following trigger: AfterProcessingTime.pastFirstElementInPane().plusDelayOf(Duration.standardSeconds(30))
• D) Use a sliding window with a duration of 30 seconds and a period of 5 seconds. Emit results by setting the following trigger: AfterWatermark.pastEndOfWindow()

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Definitions:

Marginalized People

Individuals or groups that are pushed to the fringe of society, experiencing limited opportunities, discrimination, and exclusion due to various factors such as race, class, gender, or sexual orientation.

Natural Disasters

Catastrophic events occurring as a result of natural processes of the Earth, such as earthquakes, hurricanes, and floods.

Species Survival

The continuation of a species’ existence, influenced by factors like environmental conditions, genetic diversity, and adaptability to changing ecosystems.

Darwin

Charles Darwin, a British naturalist known for his theory of evolution and natural selection.