Which type of device converts digital binary signals from a computer interface into analog patterns to transmit them over older public telephone lines? MCQ with Answer and Explanation
Which type of device converts digital binary signals from a computer interface into analog patterns to transmit them over older public telephone lines?
A. Switch
B. Bridge
C. Modem
D. Router
Answer: Option C
Solution (By JKSSB Mock Tests)
A modem modulates digital data into analog waves for transmission over telephone copper lines, and demodulates them back upon reception.
Explanation:
NAT maps private IP addresses to a public IP address, allowing multiple internal LAN devices to access the internet via a single public connection.
Which device functions exclusively at the physical layer of the OSI model to amplify or regenerate weak electrical or optical network signals over extended distances?
Which type of network environment covers a corporate office spanning multiple high-rise buildings across an entire urban district or metropolitan area?
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