What is the difference between the USB 2.0 and IEEE 1394 bus standards?

A.
IEEE 1394 is faster than USB 2.0.

B.
IEEE 1394 supports hot swapping.

C.
IEEE 1394 is slower than USB 2.0.

D.
USB 2.0 supports Plug and Play feature.

Explanation:

IEEE is a standard that defines the specifications for high speed serial bus. IEEE 1394 is also known as
Firewire. Like USB, IEEE 1394 also supports hot swapping and Plug and Play feature. However, an
IEEE 1394 bus runs at a speed of 400 Mbps, which is slower than that of a USB 2.0 bus. The IEEE
1394 standard defines two types of connectors, 4-pin and 6-pin. 6-pin connectors are commonly
used on PC adapters. 4-pin connectors are used on Macintosh systems.
What is USB?
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, whereas USB 2.0 has a maximum data transfer rate of
480 Mbps. USB 2.0 is fully backward compatible with USB 1.1.