CompTIA Cloud+ Practice Test

Which storage type provides block-level storage?

1. SAN

2. NAS

3. DAS

4. SATA

The correct answer is: SAN

The correct answer is SAN, which stands for Storage Area Network. SAN provides block-level storage, which means that storage is managed in terms of blocks rather than files. Block-level storage offers the ability to allocate and manage storage space on a more granular level, making it suitable for applications requiring high performance and low latency, such as databases and transaction processing systems. In a SAN setup, storage devices are connected to servers over a high-speed network, allowing for efficient data transfer and the capability to easily scale storage as needed. It provides the flexibility to present storage volumes to servers without being constrained by the limitations of file-level systems. Other options represent different storage architectures: - NAS stands for Network Attached Storage, which provides file-level storage and is designed primarily for serving files over a network. - DAS refers to Direct Attached Storage, which connects directly to a computer without a network and is not shared with other devices in the manner that SANs are. - SATA stands for Serial Advanced Technology Attachment, which is an interface for connecting storage devices like hard drives and SSDs. It is not a type of storage in itself but refers to how storage devices are connected. Understanding these distinctions clarifies why SAN is the correct choice for block-level storage.