Which of the following storage technologies provides block-level data access to storage volumes and arrays?

The choice of SAN (Storage Area Network) is the correct answer because SANs specifically provide block-level data access, allowing servers to access storage devices as if they were local disks. This functionality enables high performance and efficient data transfer, which is particularly beneficial in enterprise environments where large volumes of data need to be accessed quickly and reliably.

Block-level storage means that data is stored in volumes that can be divided into blocks, giving systems the ability to read and write directly to these blocks. This is ideal for database applications and workloads that require low latency and high throughput since it allows for more efficient data manipulation compared to file-level storage.

While other technologies like Direct Attached Storage (DAS) and Network Attached Storage (NAS) also serve important roles in data storage, they operate differently. DAS involves storage devices directly connected to one computer, providing block-level access but not shared across a network. NAS, on the other hand, operates at the file level and is intended for shared storage access over a network, which does not offer the same capabilities as block-level access found in SAN solutions.