Allowing data to be centrally stored and accessed by multiple devices on an isolated subnet is BEST understood as:
A.
NAS B.
iSCSI C.
SAN D.
FCoE.
C.
Allowing data to be centrally stored and accessed by multiple devices on an isolated subnet is BEST understood as:
A.
NAS
B.
iSCSI
C.
SAN
D.
FCoE.
C.
The term "centrally stored and accessed" refers to a storage system that provides a centralized location for data storage and access, rather than having individual devices store their own data. The question mentions an "isolated subnet," which implies a network configuration where devices are separated from the main network to improve security and performance.
The options given in the question refer to different storage technologies:
A) NAS (Network-Attached Storage): This is a storage device that is connected directly to a network, and provides file-level access to clients over the network. NAS devices typically use standard network protocols such as SMB or NFS to share files, and can be accessed by multiple devices simultaneously.
B) iSCSI (Internet Small Computer System Interface): This is a storage protocol that allows clients to access block-level storage over a network, using the same protocol as traditional SCSI storage devices. iSCSI requires a dedicated network connection, and is commonly used for high-performance storage applications.
C) SAN (Storage Area Network): This is a specialized network that provides block-level access to storage devices, usually using Fibre Channel or iSCSI protocols. SANs are typically used in enterprise environments where high-performance and high-availability storage is required.
D) FCoE (Fibre Channel over Ethernet): This is a protocol that allows Fibre Channel traffic to be carried over Ethernet networks, allowing Fibre Channel storage devices to be connected to Ethernet-based networks.
Based on the description in the question, the option that BEST fits the scenario is C) SAN. This is because a SAN provides a centralized location for storage that can be accessed by multiple devices, and is typically used in isolated subnets to provide high-performance storage to servers and other critical infrastructure. NAS and iSCSI could also be used in this scenario, but SAN is the most commonly used technology for this purpose. FCoE is not a storage technology itself, but a protocol used to carry Fibre Channel traffic over Ethernet networks.
In summary, allowing data to be centrally stored and accessed by multiple devices on an isolated subnet is BEST understood as a SAN.