Which of the following describes a characteristic of Blob Storage?

Blob Storage is indeed suitable for backup and recovery, as it is designed to store large amounts of unstructured data, including documents, images, videos, and backups. This storage solution is highly durable and easily scalable, making it ideal for storing data that needs to be retained and retrieved later, such as backups of critical systems or application data. It supports various redundancy options to ensure data durability, which further enhances its use for backup and disaster recovery scenarios.

In contrast to the other responses, Blob Storage does not exclusively handle structured data; it is specifically built for unstructured data, making it versatile for a wide range of data types. Additionally, it does not require access through SQL queries, as it supports REST APIs and client libraries, enabling access through various programming languages instead of just structured query language. Lastly, while Azure Portal provides one way to access Blob Storage, it can also be accessed programmatically through SDKs, tools like Azure Storage Explorer, and other interfaces, making it more flexible than being limited to the Azure Portal alone.