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The science and art of manipulating messages in order to create them secure is known as cryptography.....
Two types are:-
Symmetric key cryptography and Asymmetric key cryptography
1) symmetric key cryptography similar key is used for encryption and decryption eg :DES IDEA AES
2) Asymmetric key: public key is used for both encryption and decryption eg: RSA Difere Hellman
SONET STS SONET defines a hierarchy of signalling levels called as STSs (Synchronous Transport Signals). Every STS level supports a certain data rate specified in megabits p
What is a computer network? Computer Network is a collection of distributed intelligent devices that are connected with each other with transmission media for the purpose of da
Q. Show the Application Layer Responsibilities? - Make possible user access to the network - User interfaces as well as support for services such as E-Mail File
Q. Show the Congestion control in TCP? Congestion control in TCP TCP assumes that the cause of lost segment is due to congestion in the network Retransmission of
Tools for Digital Sound Sound is the oscillation of pressure that propagates in the form of a wave. Sound waves are transmitted through some medium (solid, liquid, or gas); th
Qustions: Simplify the following expression using a Karnaugh map: F = XY‾Z + X‾Y‾Z + XY Z +X‾ Y Z
When the computers on the network basically listen and receive the signal, they are referred to as passive due to they don't amplify the signal in any way.
Mention different categories of computer networks (on the basis of scale) and distinguish one from the other. Local Area Network (LAN): Metropolitan Area Network (MAN): W
Question The operational amplifier in the peak detector circuit shown in the figure below is powered from plus and minus 15 V. If Vout is at 1V and Vin is at 0.5V, at approxima
As in PRAM, there was no direct communication medium among the processors, therefore another model called as interconnection networks have been designed. In the interconnection net
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