PDE Question 11

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose C4

  The answer is C because session window is specifically designed to handle use cases where activity is grouped by gaps. A. Fixed-time window divides data into non-overlapping, equally-size intervals but do not track gaps in user activity. B. Sliding-time window process overlapping intervals and are better suited for periodic aggregation. D. Global windows process all data over the pipeline's lifetime and rely on custom triggers to handle time-based logic. It is technically possible but unnecessarily complex so no.

• Chose C3

  C. Use a session window with a gap time duration of 60 minutes. A session window with a gap time duration of 60 minutes is appropriate for capturing user sessions where there has been no interaction on the site for 1 hour. It allows you to group user activity within a session, and when the session becomes inactive for the defined gap time, you can evaluate whether the user added more than $30 worth of products to the basket and has not completed a transaction. Options A and B (fixed-time window and sliding time window) might not capture the specific session-based criteria of inactivity and user interaction effectively. Option D (global window with a time-based trigger) is not suitable for capturing user sessions and checking inactivity based on a specific time duration. It's more appropriate for cases where you need a single global view of the data.

• Chose C1

  Session window since the question specifically talks about a specific user for a fixed duration.