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PROFESSIONAL-DATA-ENGINEER · Question #33

Your software uses a simple JSON format for all messages. These messages are published to Google Cloud Pub/Sub, then processed with Google Cloud Dataflow to create a real-time dashboard for the CFO. D

The correct answer is C. Use Google Stackdriver Monitoring on Cloud Pub/Sub to find the missing messages.. Explanation/Reference: Stackdriver can be used to check the error like number of unack messages, publisher pushing messages faster.

Submitted by alyssa_d· Mar 30, 2026Ensuring solution quality

Question

Your software uses a simple JSON format for all messages. These messages are published to Google Cloud Pub/Sub, then processed with Google Cloud Dataflow to create a real-time dashboard for the CFO. During testing, you notice that some messages are missing in the dashboard. You check the logs, and all messages are being published to Cloud Pub/Sub successfully. What should you do next?

Options

  • ACheck the dashboard application to see if it is not displaying correctly.
  • BRun a fixed dataset through the Cloud Dataflow pipeline and analyze the output.
  • CUse Google Stackdriver Monitoring on Cloud Pub/Sub to find the missing messages.
  • DSwitch Cloud Dataflow to pull messages from Cloud Pub/Sub instead of Cloud Pub/Sub pushing messages to Cloud Dataflow.

How the community answered

(57 responses)
  • A
    11% (6)
  • B
    5% (3)
  • C
    82% (47)
  • D
    2% (1)

Explanation

Explanation/Reference: Stackdriver can be used to check the error like number of unack messages, publisher pushing messages faster.

Topics

#Pub/Sub#Dataflow debugging#Cloud Monitoring#message loss

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