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A presentation on

Data communications and networks

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Page 1: Data communications and networks

A presentation on

Page 2: Data communications and networks
Page 3: Data communications and networks

Protocol

Page 4: Data communications and networks

Computer network is a system of

interconnected computers that

enables the computers to

communicate with each other and

share there resources, data and

applications.

Page 5: Data communications and networks
Page 6: Data communications and networks

It refers to the physical media used to connect the computers together.

Types of transmission media:-A.) Guided media…….

1.) Cables2.) Optical Fiber

3.) Microwave4.) Satellite

B.) Unguided media……….1.) Infrared2.) Laser3.) Bluetooth

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Implement proper security policy for your

organization.

Use proper file access permissions when

sharing files on the internet.

Look at the following set of permissions:-

MyThesis.exe r w x r w - r - -

(First set – owner’s (Second set – group’s (Third set – other’spermissions) permissions) permissions)

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Positively this is not the actual end because, knowledge is

the only one which has no boundaries…. Thank you.

We hope you have been influenced by our simple presentation.