Which two statements about both FCIP and iSCSI are correct? (Choose two.)
A.
They support file-level storage for remote devices.
B.
They require high throughput with low latency and low jitter
C.
Their purpose is to provide connectivity between host and storage
D.
They support block-level storage for remote devices
E.
Their purpose is to provide connectivity between separate wide-area SANs
Explanation:
Fibre Channel over IP (FCIP or FC/IP, also known as Fibre Channel tunneling or storage tunneling) is an Internet Protocol (IP) created by the Internet Engineering
Task Force (IETF) for storage technology.
An FCIP entity functions to encapsulate Fibre Channel frames and forward them over an IP network. FCIP entities are peers that communicate using TCP/IP.
FCIP technology overcomes the distance limitations of native Fibre Channel, enabling geographically distributed storage area networks to be connected using
existing IP infrastructure, while keeping fabric services intact. The Fibre Channel Fabric and its devices remain unaware of the presence of the IP Network.
iSCSI, which stands for Internet Small Computer System Interface, works on top of the Transport Control Protocol (TCP) and allows the SCSI command to be sent
end-to-end over local-area networks (LANs), wide-area networks (WANs) or the Internet.
iSCSI works by transporting block-level data between an iSCSI initiator on a server and an iSCSI target on a storage device. The iSCSI protocol encapsulates SCSI
commands and assembles the data in packets for the TCP/IP layer. Packets are sent over the network using a point-to-point connection. Upon arrival, the iSCSI
protocol disassembles the packets, separating the SCSI commands so the operating system (OS) will see the storage as a local SCSI device that can be formatted
as usual. Today, some of iSCSI’s popularity in small to midsize businesses (SMBs) has to do with the way server virtualization makes use of storage pools. In a
virtualized environment, the storage pool is accessible to all the hosts within the cluster and the cluster nodes nodes communicate with the storage pool over the
network through the use of the iSCSI protocol.