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Explain the term- Encryption
Because all of the user traffic, as well as control traffic, is digitized in second generation systems, it is a relatively simple matter to encrypt all of the traffic to prevent eavesdropping. All second generation systems provide this capability, whereas first generation systems send user traffic in the clear, providing no security.
Normally, we think of communications science as dealing with the contemporaneous exchange of information among distant parties. Though, many of the same techniques employed in data
simple introduction,defination and with example & digram
How do you account for higher scalability and reliability of computer network? Ans: Computer network will have a large number of computers, which can share database, software
Distance covered, Based on size, ownership and physical architecture - LAN (Local Area Network) - Suitable for smaller geographical area - MAN (Metropolitan Area Network) - S
What is anonymous FTP and why would you use it Anonymous FTP enables users to join to a host without using a valid login and password. Generally, anonymous FTP uses a login kno
Ethernet Frame Fields Preamble - seven bytes of alternating 0s also 1s to notify receiver of incoming frame and to provide synchronization SFD (Start frame delimiter)
TCP/IP is a name provided to the collection (or suite) of networking protocols that have been used to construct the global Internet. The protocols are also referred to as the DoD (
Q. Explain Session Layer in osi model? - The session layer defines how to control, start and end conversations (called sessions) between applications. - This includes the c
1. What advantages and disadvantages does TCP have for live video teleconferencing applications
Groupware addresses the management of semi-structured information like text, image, mail, bulletin boards and the flow of work. These Client/Server systems have people in direct co
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