CompTIA Cloud+ Practice Test

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What type of storage typically uses iSCSI as its protocol?

The correct answer is: SAN

The correct choice is SAN, which stands for Storage Area Network. iSCSI, which stands for Internet Small Computer Systems Interface, is a protocol that allows for the transport of SCSI commands over IP networks. This technology is commonly used in SAN environments, where storage devices are network-attached and need to communicate with servers via a high-speed connection. In a SAN setup, storage devices are typically consolidated into a single network that servers can access, allowing for enhanced performance, scalability, and management. iSCSI is favored in SANs because it allows for the use of existing network infrastructure, leading to cost efficiency and easier management of storage resources over the network. The other options, while all pertaining to different types of storage systems, do not typically use iSCSI as their protocol. For instance, NFS (Network File System) is a protocol used primarily for UNIX/Linux file sharing, and NAS (Network Attached Storage) systems often utilize protocols like NFS or SMB for access rather than iSCSI. DAS (Direct Attached Storage), on the other hand, refers to storage that is directly attached to a single computer, where protocols like iSCSI are unnecessary as the storage is not networked in the same way.