SK0-004 · Question #676
Which of the following storage technologies provides block-level data access to storage volumes and arrays? (Choose two.)
The correct answer is B. DAS D. SAN. Block-level storage exposes raw storage volumes directly to hosts, which is the model used by both Direct-Attached Storage (DAS) and Storage Area Networks (SAN).
Question
Which of the following storage technologies provides block-level data access to storage volumes and arrays? (Choose two.)
Options
- AOptical drive
- BDAS
- CNAS
- DSAN
- ECIFS
- FNFS
How the community answered
(30 responses)- A7% (2)
- B90% (27)
- C3% (1)
Why each option
Block-level storage exposes raw storage volumes directly to hosts, which is the model used by both Direct-Attached Storage (DAS) and Storage Area Networks (SAN).
Optical drives are local media devices and do not represent a networked or shared storage technology category.
DAS connects storage directly to a host via interfaces such as SAS or SATA, presenting block-level devices (e.g., disk drives or SSDs) with no network abstraction.
NAS provides file-level access using protocols such as SMB or NFS, not block-level access.
SAN delivers block-level access to shared storage arrays over a dedicated network using protocols such as Fibre Channel or iSCSI, allowing hosts to treat remote volumes as locally attached block devices.
CIFS (Common Internet File System) is a file-sharing protocol that operates at the file level, not the block level.
NFS (Network File System) is a file-level protocol used with NAS, not a block-level storage technology.
Concept tested: Block-level vs. file-level storage technologies
Source: https://learn.microsoft.com/en-us/azure/storage/common/storage-introduction
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