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What is CRC
The CRC is computed while transmission and appended to output stream as soon as last bit goes out onto wire. If the CRC were in header, it will be necessary to make a pass over frame to compute CRC before transmitting. This would need each byte to be handled twice-once for check summing and one time for transmitting. Using trailer cuts the work in half.
Explain the importance of authentication. Authentication is the method of verifying a user's credentials before he can log into the network. It is normally performed using a us
define distortion
Q. Describe about Cryptography? - Some media cannot be protected from unauthorized reception (or interception) - Encryption involves transforming the original information in
A generic algorithm is mostly analyzed on the basis of the following parameters: the time complexity (implementation time) and the space complexity (amount of space necessary). Usu
By utilizing measurements of the so-called pseudo range between an object and each of several earth orbiting GPS satellites, the object can be very accurately located in space. A g
Question 1 This question concerns the main security goals (confidentiality, integrity, availability). Describe a situation which provides the goal of confidentiality but does not
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What is SAP? Series of interface points that permit other computers to interact with the other layers of network protocol stack is known as SAP.
Options The options fields may be used to provide other functions that are not covered by the header. If the length of the options field is not a multiple of 32 bits
what is dce
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