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Question 1
a) Explain how CSMA/CD works. b) Describe the term "exponential back-off". c) Describe the differences between "circuit switching" and "packet switching".d) There are many good reasons why Virtual Private Network is being used.
i) Explain how VPN works. ii) Give three of those reasons.
Question 2
a) One of the five main functional areas in Network Management is "Accounting Management". Briefly describe its importance. b) Describe two approaches for the management system to obtain information from SNMP (Simple Network Management Protocol). Briefly describe each one. c) Give three advantages and three disadvantages of using centralized architecture. d) Name four goals of using clustering.
Question: (a) Data on four variables are stored in a file called file1.dat. The first line of the file is the variable names f, x, y and z. Give the R commands to (i) read t
Data units at different layers of the TCP/ IP protocol suite The data unit prepared at the application layer is known a message, at the transport layer the data unit build is
CRC can detect the following errors better than check sums. a) Vertical errors b) Burst errors a) VERTICAL ERRORS: This kind of error happens due to a hardware fai
Question: (a) Explain and illustrate with a drawing the three-layer feedforward multilayer perceptron neural network. (b) Summarize the standard backpropagation algorithm in
Question: (a) Draw the waveform for an asynchronous transmission with the following specifications: Character "H", one even parity bit, one start bit, one stop bit, and a b
Who are the individuals who cause these security problems? Many unauthorized people who cause network security problems for obtaining information about the other users and causi
The Cost Benefit Analysis (CBA) Formula CBA determines that whether the control alternative being evaluated is worth cost incurred to control vulnerability or not. CBA easily ca
IPV6 BASE HEADER FORMAT: It has less information than IPV4 message header. Next header shows to first extension message header. Flow label is partitioned into a TRAFFIC CLASS
ACCESS CONTROL DEVICES Successful access control system includes number of components, which depends on system’s requirements for authentication and authorization. Powerful auth
#Under what circumstances would the use of a SecSDLC be more appropriate than an SDLC?
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