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Determine the Objectives of computer security
Though computerisation helps a lot in proper organisation of experience, it also opens a Pandora's Box simultaneously.
On one side lie the benefits of proper organisation and quick access to the experience and on the other side there are hidden problems of dishonesty, distrust and a number of unforeseen and unwanted conditions.
What is difference between Baseband and Broadband Transmission in ccna? Ans) In a baseband transmission, the entire bandwidth of the cable is consumed by a one signal. In bro
Name the basic components of the router?
what is cryptography
How is computer networks used in marketing and sales, financial services, teleconferencing? Computer network have led to a new age of all of these services. They have helped in
Suppose AES (or any block cipher) is used to encrypt data. Which mode of encryption covered in class is best suited for each of the following two scenarios and why? If more than on
Carrier Sense Multiple Access/Collision Avoidance a) Necessary since wireless LANs cannot implement CSMA/CD b) Collision detection requires increased bandwidth requirements
LEASED SATELLITE CHANNEL: It may span arbitrarily big distance. It is given in the figure below. Figure Satellite connections are low bandwidth to protect cost
In formation sharing at regular intervals For example every 30 seconds each router sends its information about the whole network to its neighbours. This sharing occurs
802.11 DSSS a) Direct sequence spread spectrum in a 2.4 GHz band b) Each bit is replaced by a sequence of bits called a chip code, implemented at the physical layer c) Se
What is virtual channel? Virtual channel is normally a connection from single source to one destination, although multicast connections are also allowed. The other name for vir
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