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Q. How two adjacent layers communicate in a layered network or what do you understand by Service Access Point?
Ans: In layered network, each layer has several entities and entities of layer i give service to the entities of layer i+1. The services will be accessed through service access point (SAP), which has some address through which the layer i+1 will access the services provided by layer.
Butterfly permutation This permutation is getting by interchanging the important significant bit in address with smallest significant bit.
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
a) An Introduction/Overview of Network Security issues. b) A Risk Assessment analysis- to include: Assets T
How does L2TP process?
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Transmission robustness and security Unless properly designed, a wireless LAN might be interference prone and simply eavesdropped. The design of a wireless LAN must allow relia
Question: (a) Show the main elements of the GSM system architecture and describe their functions. (b) Looking at the HLR/VLR database approach used in GSM-how does this arc
What advantages does fiber optics have over other media? One main advantage of fiber optics is that is it less susceptible to electrical interference. It also supports higher ba
Q. Show a simplex Stop and Wait automatic repeat request? A simplex Stop and Wait ARQ - Normal Operation - Frame lost - Acknowledgement lost - Acknowledgement de
Question: (a) Suppose that you are a communication engineer and you have to construct a mobile telephone network with bandwidth W = 4.2 MHz in each link. The data rate is
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