Computer Communication Networks Quiz

<p>Transmission efficiency</p> Signup and view all the answers

<p>Optical fibre</p> Signup and view all the answers

<p>Conversion of brain waves into speech</p> Signup and view all the answers

<p>Multiplex</p> Signup and view all the answers

<p>Point-to-point configuration</p> Signup and view all the answers

<p>To change how data are represented</p> Signup and view all the answers

<p>Modem</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>Attendance = 30% Assignments = 10% Presentations = 10% Quizzes = 10%</p> Signup and view all the answers

<p>Computer Networks: A Systems Approach = Larry L. Peterson, Bruce S. Davie Computer Networks = Andrew S. Tanenbaum, David J. Wetherall Computer Networking A Top-Down Approach = James F. Kurose, Keith W. Ross Simple Steps to Data Encryption, A Practical Guide to Secure Computing = Peter Loshin</p> Signup and view all the answers

<p>OSI model = A conceptual framework used to understand and describe network protocols TCP/IP = A set of protocols used for communication over the internet Wireless Communications = The transfer of information between two or more points that are not connected by an electrical conductor Cybersecurity = The practice of protecting systems, networks, and programs from digital attacks</p> Signup and view all the answers

<p>Modulation = Conversion of the digital signal into an analogue signal Demodulation = Conversion of the analogue signal back into a digital signal Encoding = Changing how data are represented Encryption = Encoding to hide the meaning of data</p> Signup and view all the answers

<p>Direct Link = A transmission path that propagates signals directly from transmitter to receiver with no intermediate devices, except amplifiers to increase signal strength Point-to-Point = A configuration that provides a direct link between two devices, and those are the only two devices sharing the medium Multipoint = A configuration where more than two devices share the same medium Bandwidth = The range of frequencies within which all transmissions occur</p> Signup and view all the answers

<p>ASCII = American Standards Committee for Information Interchange EBCDIC = Extended Binary Coded Decimal Interchange Code Analogue Data = Data that exists in continuous, non-discrete form Digital Data = Data that exists in discrete, discontinuous form</p> Signup and view all the answers

<p>Transmission medium = The physical path between the transmitter and receiver Transmission rate = The speed at which 'what is being communicated' is being sent Transmission efficiency = How much overhead must be added to manage the transmission Transmission code = An agreed 'language' to be used for communication</p> Signup and view all the answers

<p>Simplified Data Communications Model = Includes elements such as sender, receiver, addressing, protocol, and transmission medium Simplified Communication Model = Consists of basic elements like source, transmitter, transmission system, receiver, and destination Communication Model = Describes the process of communication and the properties required for effective communication Diagram of Simplified Communication Model = Illustrates the key tasks and elements involved in communication</p> Signup and view all the answers

<p>Simplex = Transmission in one direction only Half-duplex = Transmission in both directions, but only in one direction at any time Full-duplex = Transmission in both directions simultaneously, if required Guided = Transmission where the medium is bounded and the transmission is contained within it</p> Signup and view all the answers

<p>Two wire = Simplest arrangement, with two wires, separated by air. Only reliable for low data rates Twisted Pair = Two insulated wires twisted together. Suitable for short distance medium speed links Coaxial cable = Single central wire, separated from woven outer conductor by plastic insulation. Can support medium to high data rates Optical Fibre = Uses single strand of glass as core, with light shield around it. Capable of high data rates</p> Signup and view all the answers