DP-900 - Describe Considerations for Working with Non-Relational Data on Azure (18% of the exam) - Section 3.1

Describe capabilities of Azure Storage including blob, file, table, and queue storage.

Describe the purpose of Azure Blob Storage, Azure Files, Azure Table Storage, and Azure Queue Storage as the four core storage services. Recognise how storage access tiers (hot, cool, cold, archive) balance cost against retrieval latency for blob data.

Azure Blob StorageAzure FilesAzure Table StorageAzure Queue Storagestorage access tiers

Practice question for this objective

Free sampleDescribe Considerations for Working with Non-Relational Data on Azuremedium

An organization wants to build an enterprise data lake for big data analytics on top of Azure Storage. Which capability of Azure Blob storage supports this?

  • AIt provides managed file shares accessible over the SMB and NFS protocols
  • BIt includes support for big data analytics through Azure Data Lake Storage Correct
  • CIt offers a key/attribute NoSQL store with a flexible schemaless design
  • DIt supplies block-level virtual hard disk volumes attached to a virtual machine
Azure Blob storage supports big data analytics through Azure Data Lake Storage, enabling an enterprise data lake. Azure Blobs also include support for big data analytics through Data Lake Storage, letting organizations build an enterprise data lake on the object store.

Why A is wrong: Managed file shares over SMB and NFS describe Azure Files, not the big-data analytics capability of Blob storage.

Why B is correct: Correct. Azure Blobs also include support for big data analytics through Data Lake Storage, letting organizations build an enterprise data lake on the object store.

Why C is wrong: A schemaless key/attribute NoSQL store describes Azure Table storage, not Blob storage's analytics support.

Why D is wrong: Block-level virtual hard disk volumes describe Azure managed disks, which are not used to build a data lake.

See more DP-900 practice questions, answers explained.

Exam traps in Describe Considerations for Working with Non-Relational Data on Azure

Answers that look right on this material and are not. Each one is a distractor from a different question in the DP-900 bank for this domain.

  • Cold tier

    Why it is wrong: The Cold tier is for rarely accessed data that still needs fast retrieval, so it costs more to store than Archive.

  • AzCopy

    Why it is wrong: AzCopy is a utility for uploading and copying files to storage, not a service that keeps local caches continuously synchronised with the share.

  • Highly structured relational tables enforced by a fixed schema and column types

    Why it is wrong: Blob Storage does not enforce a relational schema; structured relational data belongs in a database service, not an object store.

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