Which statement would identify the primary difference between a NAS and a DAS?
A. A NAS cannot be shared and accessed by multiple computers.
B. A DAS provides fault tolerance.
C. A DAS does not connect to networked storage devices.
D. A NAS uses an HBA and a DAS does not.
Answer: C
A NAS device contains a slimmed-down operating system and file system and processes only I/O requests by supporting the popular file sharing protocols, primarily CIFS for Windows and NFS for Unix.
Direct-attached storage (DAS) refers to a digital storage system directly attached to a server or workstation, without a storage network in between. Devices may be attached via USB, eSATA, etc.
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