Railways PYQCBT 1 2016

RRB NTPC · Question 44

A serial port can

  1. Only transfer information from a hard drive.

  2. Only transfer information to a hard drive.

  3. Transfer information both to and from a hard drive.

  4. Neither transfer information from not to a hard drive.

Show answer & explanation

Answer: (C) Transfer information both to and from a hard drive.

Explanation

A serial port sends and receives data one bit at a time in both directions, so information can travel both to and from the computer's storage through it.