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Efficiency of a data communications system depends on three fundamental characteristics
- Delivery: The system should deliver data to the correct destination. Data should be received by the intended device or user and only by that device or user
- Accuracy: The system should deliver the data accurately. Data that have been altered in transmission as well as left uncorrected are unusable
- Timeliness: The system should deliver data in a timely manner. Data delivered not on time are useless. Delivering the data in the similar order that they are produced and without significant delay (real time transmission)
What is Frequency diversity Due to the transmission is spread out over a larger bandwidth, frequency-dependent transmission impairments, like as noise bursts and selective fadi
Q. What is Sliding Window protocols? Alternatives: Sliding Window protocols - One task begins prior to the other one ends (concept of
Q. Security and Reciprocity of RSA? Security and Reciprocity of RSA - Kp and N are issued publicly. - Ks is kept secret. - Since the snooper does not know p and
A communications channel is pathways over which information can be communicate. It may be described by a physical wire that connects communicating devices, or by a radio, laser, or
Q. Explain about Bandwidth – delay product? Bandwidth - delay product - A measure of competence of ARQ system = bandwidth (bits per second) * round-trip delay (in seco
Determine the level of Fibre Channel standard The Fibre Channel standard is organized into five levels: FC-0: The Physical Interface and Media Level handles a variety of phy
State the Example of security audit as case study Linda narrates one of her experience about a security audit. She was performing a spot audit where she was checking certain
Normally, we think of communications science as dealing with the contemporaneous exchange of information among distant parties. Though, many of the same techniques employed in data
Disadvantages You typically would not use a packet filter as your only security solution for your network packets filters have two major disadvantages. a. Low securit
QUESTION (a) Four important benefits of Multi-Agent Systems are modularity, efficiency, reliability and flexibility. Briefly explain these benefits (b) Agents work together
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