Which device helps to transfer information over telephone line?

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AModem

BSwitch

CRepeater

DGateway

Answer:

Modem (Modulator / Demodulator)

It is a device that works as a digital to analog and digital to analog signal converter.
It helps to transmit signals over telephone lines.

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താഴെ തന്നിരിക്കുന്നവയിൽ തെറ്റായ പ്രസ്താവന തെരഞ്ഞെടുക്കുക.

Which of the following statements are true?

1.In a ring network, every device has exactly two neighbors for communication purposes.

2.All messages travel through a ring in the same direction i.e either “Clockwise” or “Counter clockwise”.

3.Failure in any cable or device breaks the loop and can take down the entire network