Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Computer Networks Network Security
Which of the following statements is true about modems?
1
Modems use the telephone lines
2
Modem stands for modulator and demodulator
3
Modem are no longer used in secure network
4
More than one of the above
5
None of the above