1. E-LEARNING SOURCES IN COMPUTER NETWORKS SECURITY
Dr. K. Ravikumar
Assistant Professor
Department of Computer Science
Tamil University, Thanjavur-10

2. Networks Interconnect collection of all autonomous computers.
Resource sharing
Information sharing
Computer network is a digital telecommunications network 
Computing devices exchange data with each other using connections.

3. Internet Connection Components
MODEM-Modulation Demodulation
Analog signal into Digital Signal
Digital Signal Into Analog Signal
Telephone-Backbone of the internet
Personal Computer

4. Machine IP Address Your Machine IP Address - :14.139.181.209
To find the server Location
To identify the Database
IP Address is false ,Do not identifying the website address

5. Password Strength Password contains minimum 8 characters
Upper case letter
Lower case letter
Numbers
Symbols
Special Characters and brackets
Example