Which storage type provides block-level access via iSCSI or Fibre Channel?

Study for the NetApp Certified Technology Associate NS0-002 Exam. With detailed flashcards and multiple choice questions, including hints and explanations, you'll be well-prepared to ace your exam!

Multiple Choice

Which storage type provides block-level access via iSCSI or Fibre Channel?

Explanation:
Block-level storage accessed over a dedicated network fabric is provided by a Storage Area Network. In a SAN, storage is presented to servers as raw blocks (LUNs) rather than as files, which lets the host’s own file systems or databases manage data directly and achieve fast, low-latency I/O. iSCSI uses IP networks to carry these block commands, while Fibre Channel uses a dedicated fast fabric. This distinction is what makes SAN the right answer for block-level access via iSCSI or Fibre Channel. NAS, object storage, and tape storage, by contrast, offer file-level access, object-based access, and archival storage respectively, not block-level storage over iSCSI/FC.

Block-level storage accessed over a dedicated network fabric is provided by a Storage Area Network. In a SAN, storage is presented to servers as raw blocks (LUNs) rather than as files, which lets the host’s own file systems or databases manage data directly and achieve fast, low-latency I/O. iSCSI uses IP networks to carry these block commands, while Fibre Channel uses a dedicated fast fabric. This distinction is what makes SAN the right answer for block-level access via iSCSI or Fibre Channel. NAS, object storage, and tape storage, by contrast, offer file-level access, object-based access, and archival storage respectively, not block-level storage over iSCSI/FC.

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