professional-machine-learning-engineer question 50 discussion

Question 50

Your team is building an application for a global bank that will be used by millions of customers. You built a forecasting
model that predicts customers account balances 3 days in the future. Your team will use the results in a new feature that will
notify users when their account balance is likely to drop below $25. How should you serve your predictions?

• A. 1. Create a Pub/Sub topic for each user. 2. Deploy a Cloud Function that sends a notification when your model predicts that a users account balance will drop below the $25 threshold.
• B. 1. Create a Pub/Sub topic for each user. 2. Deploy an application on the App Engine standard environment that sends a notification when your model predicts that a users account balance will drop below the $25 threshold.
• C. 1. Build a notification system on Firebase. 2. Register each user with a user ID on the Firebase Cloud Messaging server, which sends a notification when the average of all account balance predictions drops below the $25 threshold.
• D. 1. Build a notification system on Firebase. 2. Register each user with a user ID on the Firebase Cloud Messaging server, which sends a notification when your model predicts that a users account balance will drop below the $25 threshold.