AZ-900 - Microsoft Azure Fundamentals Azure Storage Services Questions and Answers 1 — Questions and Answers
Question 1: A company needs to store several terabytes of unstructured data, such as videos, images, and documents, in Azure. The data must be accessible from anywhere in the world via HTTP or HTTPS. Which Azure Storage service is the most suitable for this requirement?
- Azure Files
- Azure Blob Storage (Correct answer)
- Azure Table Storage
- Azure Queue Storage
Correct answer: Azure Blob Storage
Azure Blob Storage is the correct choice because it is an object storage solution optimized for storing massive amounts of unstructured data like text or binary data. It's ideal for scenarios such as serving images or documents directly to a browser, streaming video and audio, and storing data for backup and restore.
Question 2: An organization wants to migrate its on-premises file server to Azure to provide a cloud-based file share for its employees. The solution must support access via the standard Server Message Block (SMB) protocol so that users can map it as a network drive. Which Azure Storage service should they use?
- Azure Disk Storage
- Azure Blob Storage
- Azure Files (Correct answer)
- Azure Table Storage
Correct answer: Azure Files
Azure Files is the appropriate service as it offers fully managed file shares in the cloud that are accessible via the industry-standard Server Message Block (SMB) protocol. This allows for a seamless 'lift-and-shift' of applications and user shares that rely on traditional file server protocols.
Question 3: A developer is building a distributed application where components need to communicate asynchronously. The application requires a reliable messaging solution to create a backlog of work to be processed, helping to decouple the components. Which Azure Storage service is designed for this purpose?
- Azure Queue Storage (Correct answer)
- Azure Table Storage
- Azure Files
- Azure Blob Storage
Correct answer: Azure Queue Storage
Azure Queue Storage is designed for storing large numbers of messages that can be accessed from anywhere. It is commonly used to create a backlog of work to process asynchronously, which effectively decouples application components and improves scalability and fault tolerance.
Question 4: A company needs to store a large dataset of customer information as a NoSQL key/value store. The data is semi-structured, and queries will be performed using a partition key and a row key for fast access. Which Azure Storage service provides a cost-effective solution for this scenario?
- Azure SQL Database
- Azure Blob Storage
- Azure Files
- Azure Table Storage (Correct answer)
Correct answer: Azure Table Storage
Azure Table Storage is a NoSQL service that stores large amounts of structured, non-relational data. It is a key-value store with a schemaless design, making it ideal for semi-structured data. Data is accessed via a partition key and row key, which allows for fast retrieval.
Question 5: An organization needs to store long-term backup and archival data for compliance purposes at the lowest possible cost. The data will be accessed very rarely, and a retrieval time of several hours is acceptable. Which Azure Blob Storage access tier is the most cost-effective choice?
- Hot
- Cool
- Archive (Correct answer)
- Premium
Correct answer: Archive
The Archive tier is an offline tier optimized for storing data that is rarely accessed and has flexible latency requirements (on the order of hours). It offers the lowest storage cost but has higher data retrieval costs compared to other tiers, making it perfect for long-term archival.
Question 6: Which Azure Storage redundancy option copies data synchronously across three Azure availability zones within the primary region, providing protection against datacenter-level failures?
- Locally-redundant storage (LRS)
- Geo-redundant storage (GRS)
- Zone-redundant storage (ZRS) (Correct answer)
- Read-access geo-redundant storage (RA-GRS)
Correct answer: Zone-redundant storage (ZRS)
Zone-redundant storage (ZRS) copies your data synchronously across three Azure availability zones in the primary region. This ensures that if one datacenter (availability zone) fails, your data remains available from the other zones within the same region.
AZ-900 - Microsoft Azure Fundamentals Azure Storage Services Questions and Answers 1
A company needs to store several terabytes of unstructured data, such as videos, images, and documents, in Azure.
The data must be accessible from anywhere in the world via HTTP or HTTPS.
Which Azure Storage service is the most suitable for this requirement?