What is Electronic Data Interchange in E-Commerce? EDI stands for electronic data interchange refers to the computer exchange of structural business information in a standard electronic format. Using EDI, the various trading partners can establish links between their computers to exchange information electronically. EDI may also be defined as the transfer of structured data between […]
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What is Virtual Private Network ? And Why Do Organization Need Them ? A virtual private network(VPN) is a network of virtual circuits that carries private traffic through public or shared networks such as the internet or those provided by network service providers. VPNs allow a trusted network to communicate with another trusted network over
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What is Digital Signature and how it works? It is a mathematical stream for demonstrating the authenticity of Digital Signature or documents. A valid signature gives a receipt reason to believe that the message was created by a known sender such that the sender cannot deny having sent the message and the message was not
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What is a Firewall ? It is a barrier to keep destructive forces away from your property/assets. Its job is similar to a physical firewall that protects the fire from spreading from one area to another. It protects the network from unauthorized use by attackers. Basically, any device that can control network traffic for security
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In cryptography, substitution is a technique in which plaintext letters are replaced with other letters, numbers, or symbols. Substitution includes substituting plaintext bit patterns with ciphertext bit patterns if the plaintext is considered as a sequence of bits. Caesar Cipher is one of the substitution techniques first used by Julius Caesar. Caesar Cipher The Caesar
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