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Q. Explain about Error Detection?
Data can be corrupted during transmission because of accidents, Storms, sudden increase in electricity and voltage / decrease in signal power over distance
For reliable communication errors should be detected and corrected
Problem 1. Explain the term Switching. Describe the following Switching Mechanisms a) Circuit Switching b) Packet Switching c) Message Switching Defining Switching
Application Layer The application layer provides an interface between application entities and the users computer. This layer offers services to a variety of aspects of d
What are advantages of having e-commerce over extranets
How Does a Firewall Protect Firewalls work by controlling the information that comes in and out of the network. By using the Application Proxy service, the flow of information
Hybrid Networks Allows an organization to have its own private networks and at the same time access to the global internet. the organization may share its information w
Q. Define V - 32 modem? - ITU-T's V.32 standard was issued in 1989 for asynchronous and full-duplex operation at 9600 bps. - Even though designed for asynchronous DTEs two
Explain about the Gopher The ghoper is a protocol designed to search, retrieve and display documents from remote sites on the Internet. The Ghoper was formed as a piece of sof
What everyday object is the same as The RAM function to the computer?
To model a WAN, we need a graph in which the nodes model switches and the edges model direct join between switches. The modeling saves essence of network, and it ignores attached d
Q. Explain the Public-Key Cryptography? Public-Key Cryptography - Each user has the same encryption algorithm and key - Decryption algorithm also key are kept secret
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