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Unit 5

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This document provides an overview of key concepts in data communication and networking including: 1. It defines analog and digital signaling methods, with analog varying continuously in voltage and digital jumping between discrete voltage levels. 2. It describes how modems modulate digital signals to analog for transmission and demodulate analog signals back to digital. 3. It outlines simplex, half-duplex, and full-duplex transmission directions and defines common network types like LAN, MAN, and WAN.

EducationTechnologyBusiness
1 of 18
[object Object],[object Object],[object Object]
Transmission Basics ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
Analog Signaling ,[object Object],[object Object]
Analog Signaling
Digital Signaling Unlike analog signals where there is a smooth curve, digital signals jump directly to the next value. When digital signals can exist in only one of two values, they go directly to the next value, typically changing between 0 and 1. The jump from one value to another is known as a transition .
Data Modulation ,[object Object],[object Object],[object Object],[object Object]
Transmission Direction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Compression
Types of Networks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
N etworks topology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hub ,[object Object],[object Object]
switch ,[object Object],[object Object]
Router ,[object Object]
Gateway ,[object Object],[object Object]
Bridge On the other hand Bridge is a device that connects two networks based on similar topology
C able ,[object Object]
Types of cable ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Unit 5

  • 1.
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  • 6. Digital Signaling Unlike analog signals where there is a smooth curve, digital signals jump directly to the next value. When digital signals can exist in only one of two values, they go directly to the next value, typically changing between 0 and 1. The jump from one value to another is known as a transition .
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  • 16. Bridge On the other hand Bridge is a device that connects two networks based on similar topology
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