Online GK Series

This site is dedicated to the aspirants of competitive exams SSC, UPSC, Railways, Postal Assistants, Bank, GATE and NET

Q.

For carrying digital data over long distance using either analog signal or digital signal at approximately spaced points, we must have

A amplifiers
B repeater
C switch
D either amplifier or repeater
Answer & Explanation
Option: [D]

In case of long distance transmission we use amplifier or repeater. An amplifier enhances the strength of input signal. On the otherhand repeaters receives a signal and retransmits the same signal after increasing the power.

Computer Science Books

Your Valuable Comments Please...

Please Like Us
Brand