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Microsoft

DP-100 · Question #482

You create an Azure Machine Learning workspace. The workspace contains a dataset named sample_dataset, a compute instance, and a compute cluster. You must create a two-stage pipeline that will…

The correct answer is A. workspaceblobstore datastore. In Azure Machine Learning pipelines, the default datastore for storing pipeline step outputs is the workspaceblobstore, which is backed by the Azure Blob Storage account associated with the Azure ML workspace. When the first pipeline stage writes output data (for example…

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Question

You create an Azure Machine Learning workspace. The workspace contains a dataset named sample_dataset, a compute instance, and a compute cluster. You must create a two-stage pipeline that will prepare data in the dataset and then train and register a model based on the prepared data. The first stage of the pipeline contains the following code: You need to identify the location containing the output of the first stage of the script that you can use as input for the second stage. Which storage location should you use?

Exhibit

DP-100 question #482 exhibit

Options

  • Aworkspaceblobstore datastore
  • Bworkspacefilestore datastore
  • Ccompute instance
  • Dcompute_cluster

How the community answered

(35 responses)
  • A
    86% (30)
  • B
    9% (3)
  • C
    3% (1)
  • D
    3% (1)

Explanation

In Azure Machine Learning pipelines, the default datastore for storing pipeline step outputs is the workspaceblobstore, which is backed by the Azure Blob Storage account associated with the Azure ML workspace. When the first pipeline stage writes output data (for example, prepared data stored via OutputDatasetConfig or a similar mechanism), that data is automatically persisted to the workspaceblobstore datastore. The second stage can then read from this location as its input. The workspacefilestore is backed by Azure Files and is typically used for compute instance home directories. Compute instances and compute clusters are ephemeral compute resources-their local storage is not reliably shared between pipeline steps or runs and is not the designated output location.

Topics

#Azure Machine Learning Pipelines#Datastores#Pipeline Data Transfer#Intermediate Outputs

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