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Question

The interface between a computer and a modem usually employs.

A
Synchronous connection
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B
Asynchronous connection
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C
Direct wire connection
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D
None of the above
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Solution

The correct option is B Synchronous connection

The interface between a computer and a modem usually employs is a Synchronous connection.

Synchronous vs. Asynchronous Data Transfer. ... When the clocks of each modem are in synchronization, the data stream is sent. Hayes OPTIMA modems are capable of synchronous data transmission. In asynchronous transmission, data is coded into a series of pulses, including a start bit and a stop bit.

The term asynchronous is usually used to describe communications in which data can be transmitted intermittently rather than in a steady stream. For example, a telephone conversation is asynchronous because both parties can talk whenever they like.

Synchronous connections use independent clocking signals to synchronize the data transmission. They provide a permanent connection between two endpoints, and are typically established over dedicated leased-lines.

A Modem or Broadband Modem is a hardware device that connects a computer or router to a broadband network. For example, a Cable Modem and DSL Modem are two examples of these types of Modems.


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