Which interface is mainly used for high-speed communications and isochronous real-time data transfer?
A. eSATA
B. USB
C. IEEE 1394
D. iSCSI
Correct Answer: C
Explanation/Reference:
Explanation:
The IEEE 1394 interface is a serial bus interface. This interface is mainly used for high-speed communications and isochronous real-time data transfer. It is frequently used by personal computers and in digital audio, digital video, automotive, and aeronautics applications. The interface is also known by the brand names of FireWire (Apple), i.LINK (Sony), and Lynx (Texas Instruments). IEEE 1394 has replaced parallel SCSI because of lower implementation costs and a simplified, more adaptable cabling system.
Answer: A is incorrect. External Serial Advanced Technology Attachment (eSATA) is an external Interface and provides hot swappable hard disk drive solution. It is an external interface for Serial Advanced Technology Attachment (SATA) technology. It is designed to support hot-plugging. Hence, it allows users to connect a hard disk drive while the computer is running. eSATA has data transfer rates three times more than USB 2. 0 and FireWire 400. Unlike USB and FireWire interfaces, eSATA requires its own power connector. eSATA supports a maximum data cable length of two meters.
Answer: B is incorrect. A USB (universal serial bus) connection is an external interface that is used to plug devices, such as mice, keyboards, scanners, printers, webcams, digital cameras, mobile phones, and external hard disks into a computer. A user can recognize a USB connection by the symbol usually displayed on the connector.
Explanation/Reference:
Explanation:
The IEEE 1394 interface is a serial bus interface. This interface is mainly used for high-speed communications and isochronous real-time data transfer. It is frequently used by personal computers and in digital audio, digital video, automotive, and aeronautics applications. The interface is also known by the brand names of FireWire (Apple), i.LINK (Sony), and Lynx (Texas Instruments). IEEE 1394 has replaced parallel SCSI because of lower implementation costs and a simplified, more adaptable cabling system.
Answer: A is incorrect. External Serial Advanced Technology Attachment (eSATA) is an external Interface and provides hot swappable hard disk drive solution. It is an external interface for Serial Advanced Technology Attachment (SATA) technology. It is designed to support hot-plugging. Hence, it allows users to connect a hard disk drive while the computer is running. eSATA has data transfer rates three times more than USB 2. 0 and FireWire 400. Unlike USB and FireWire interfaces, eSATA requires its own power connector. eSATA supports a maximum data cable length of two meters.
Answer: B is incorrect. A USB (universal serial bus) connection is an external interface that is used to plug devices, such as mice, keyboards, scanners, printers, webcams, digital cameras, mobile phones, and external hard disks into a computer. A user can recognize a USB connection by the symbol usually displayed on the connector.
Answer: D is incorrect. Microsoft Internet iSCSI Initiator enables a user to connect a host computer that is running Windows 7 or Windows Server 2008 R2 to an external iSCSI-based storage array through an Ethernet network adapter. The user can use Microsoft iSCSI Initiator in his existing network infrastructure to enable block-based storage area networks (SANs). SANs provide iSCSI target functionality without investing in additional hardware. SANs also enable the use of iSCSI storage devices in home and small offices.
