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Data & Storage Architecture Flashcards

6 cards from real AZ-301 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Data & Storage Architecture flashcards as text
  1. A company needs to store petabytes of unstructured data (images, videos, backups) in Azure with the lowest possible storage cost for data accessed less than once per month. Which storage tier should be used?

    Answer: Archive tier

    Azure Blob Storage Archive tier offers the lowest storage cost but with highest access latency and costs, designed for data rarely accessed over months or years.

  2. An architect needs to design a data lake solution on Azure that supports structured, semi-structured, and unstructured data with hierarchical namespaces for efficient analytics. Which service should be used?

    Answer: Azure Data Lake Storage Gen2

    Azure Data Lake Storage Gen2 combines Azure Blob Storage with hierarchical namespace support, optimized for big data analytics with POSIX-like permissions.

  3. A company requires a managed relational database service on Azure with 99.99% SLA, built-in high availability across availability zones, and automatic backups without managing infrastructure. Which service is most appropriate?

    Answer: Azure SQL Database (Business Critical)

    Azure SQL Database Business Critical tier provides 99.99% SLA with local SSD storage and automatic failover across availability zones for highest availability.

  4. When designing a multi-model database solution that needs to store and query data as documents, graphs, key-value pairs, and wide-column tables in a single globally distributed service, which Azure service should be used?

    Answer: Azure Cosmos DB

    Azure Cosmos DB is a globally distributed multi-model database supporting document, graph, key-value, table, and column-family APIs in a single service.

  5. An architect needs to migrate a SQL Server database to Azure with minimal code changes, while needing features like SQL Agent, cross-database queries, and linked servers not supported in Azure SQL Database. Which service should be recommended?

    Answer: Azure SQL Managed Instance

    Azure SQL Managed Instance provides near 100% SQL Server compatibility including SQL Agent, cross-database queries, and linked servers in a fully managed PaaS service.

  6. A company needs to implement change data capture (CDC) for their Azure SQL Database to stream real-time changes to downstream analytics systems. Which Azure service provides this capability natively?

    Answer: Azure SQL Database with CDC enabled feeding Azure Event Hubs

    Azure SQL Database supports CDC that captures row-level changes which can be fed to Azure Event Hubs for real-time streaming to downstream consumers.