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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.
Q. Example of go back - N protocol? The window size is 4. A sender has sent frame 6 as well as the timer expires for frame 3 (frame 3 not ACKn'd). The sender goes back as we
Q. Describe about Cryptography? - Some media cannot be protected from unauthorized reception (or interception) - Encryption involves transforming the original information in
Q. Describe the Hardware complexity of Benz Network? Hardware complexity of Benz Network: Benz network employs lesser switches and it gives good connectivity. To come across h
Question: (a) Short Message Service (SMS) is a service available on most mobile phones that allows the sending of short messages between mobile phones, other handheld devices
working of belmen ford algorithm
Question 1: (a) In the context of an information system, distinguish and relate among the terms: data, information and decision-making. (b) Describe at least two chall
802.11g OFDM a) Uses OFDM with same 2.4 GHz band b) Achieves a 54-Mbps data rate c) Works with same 802.11b equipment
Station Types No-transition mobility moreover stationary or moving only inside a BSS BSS-transition mobility is able to move from one BSS to another, but confined inside one
Sonet Devices STS Mux or DMux either multiplexes signals from multiple sources into an STS or demultiplexes an STS into different destination signals. Regenerator is a repea
Explain about the Database Management Intranet This type of Intranet provides everyone in an organisation with the capability to maintain a "real-time" interactive database.
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