Which of the following buses has a maximum data transfer rate of 2400 Mbps?
A.
USB 1.1
B.
FireWire 800
C.
USB 2.0
D.
eSATA
Explanation:
External Serial Advanced Technology Attachment (eSATA) is an external Interface and provides hot
swappable hard disk drive solution. It is anexternal 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. It
has a maximum data transfer rate of 2400 Mbps.
Answer B is incorrect. FireWire 800 bus has a maximum data transfer rate of 786.432 Mbps.
Answer C and A are incorrect. Universal Serial Bus (USB) is a high speed bus standard developed by
Compaq, IBM, DEC, Intel,
Microsoft, NEC, and Northern Telecom. It provides the Plug and Play capability of Windows to
external hardware devices. USB supports hot
plugging, which means that a USB device can be installed or removed while the computer is running.
A single USB port can be used to connect
up to 127 peripheral devices, such as CD-ROM drives, tape drives, keyboards, scanners etc. USB 1.1
has a maximum data transfer rate of 12
Mbps and USB 2.0 has a maximum data transfer rate of 480 Mbps.