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:

Emotional Response

A reaction to stimuli that involves feelings, such as happiness, anger, sadness, or fear, which can influence behavior and perceptions.

Cannon-Bard Theory

An idea positing that emotional sensations and bodily responses occur concurrently but are distinct processes.

Bodily Arousal

A physiological reaction to stimuli that involves increased physical activity, such as elevated heart rate, blood pressure, and energy level, often in response to excitement, stress, or fear.

Emotion

A complex psychological state involving three distinct components: a subjective experience, a physiological response, and a behavioral or expressive response.