Which of the following statements is true about the installation of Universal Serial Bus (USB) devices?

Question

Options

• AA USB device can be plugged to a computer without restarting it.
• BA computer has to be restarted to install a USB device.
• CUSB devices are non-Plug and Play.
• DSoftware drivers are not required for USB devices.

• A
  78% (21)
• B
  11% (3)
• C
  7% (2)
• D
  4% (1)

Explanation

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. Answer option D is incorrect. Software drivers are required for USB devices. It is possible, though, that the drivers for your USB devices are already available on the computer. In this case, you do not need to provide a device driver separately. Answer option B is incorrect. It is not required to restart the computer to install USB devices.

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