Google Cloud Professional Machine Learning Engineer — Question 272

You need to train an XGBoost model on a small dataset. Your training code requires custom dependencies. You want to minimize the startup time of your training job. How should you set up your Vertex AI custom training job?

Answer options

• A. Store the data in a Cloud Storage bucket, and create a custom container with your training application. In your training application, read the data from Cloud Storage and train the model.
• B. Use the XGBoost prebuilt custom container. Create a Python source distribution that includes the data and installs the dependencies at runtime. In your training application, load the data into a pandas DataFrame and train the model.
• C. Create a custom container that includes the data. In your training application, load the data into a pandas DataFrame and train the model.
• D. Store the data in a Cloud Storage bucket, and use the XGBoost prebuilt custom container to run your training application. Create a Python source distribution that installs the dependencies at runtime. In your training application, read the data from Cloud Storage and train the model.

Correct answer: A

Explanation

The correct answer, A, minimizes startup time by using a custom container that directly accesses data stored in Cloud Storage, avoiding unnecessary overhead. Options B and D involve additional steps for installing dependencies, which can increase startup time, while option C does not utilize Cloud Storage, potentially limiting flexibility and efficiency in data access.