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Question 1
a) Provide three advantages of using optical fiber. b) Distinguish between "Direct Sequence Modulation" and "Frequency Hopping" c) Decribe the purpose of using "Straight-Through" cable and "Cross-over" cable. d) Briefly explain the role of the "session and transport layer" of the OSI.
Question 2
a) The IP gives a number of core functions and associated procedures to carry out the several harmonizing functions. What are three main functions of IP, provide a brief description about each function. b) i) Describe what Network Address Translation (NAT) is? ii) Why is NAT used? c) Give three advantages and three disadvantages of NAT. d) Which TCP/IP utility will be used to evaluate the path taken by messages from workstation to a destination?
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
In this section, you should create a program that emulates a GBN node. Two GBN nodes will be running to send packets to each other through the UDP protocol. For emulation purpose,
What do you understand by the DNS? Explain the usage of the resource rec or ds. Domain Name System is described below: The Domain Name Service (DNS) is the hierarchi
RSA Block and Vernam Stream Ciphers This assignment involves writing two small Python scripts and a report. Before you start you must download the ?le summarysheets.zip from th
Secure Socket Layer (SSL) accepts a combination of asymmetric and symmetric (public-key) encryption to accomplish integrity, confidentiality, authentication and non-repudiation for
Steganography It is a process of hiding information in use for a long time. Most popular modern version of this process hides information within files appearing to contain digit
(a) Show four Network Security attacks. How do they compromise security? (b) In what ways do the following devices or services contribute to security: (i) Firewall (ii) In
QUESTION: (a) Ethernet has grown in popularity in the recent years and is now used in LANs. Give three reasons for the success behind Ethernet. (b) Ethernet uses the CSMA/CD
the meaning Digital Signatures
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