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Question 1:
a) The aim of a computer network is to increase efficiency and reduce costs. Describe how networks achieve the above.
b) Explain briefly how the bus topology operates. Support your answer with appropriate diagrams.
c) Briefly describe the following terms associated with networking :
a) Server b) Client c) Protocol d) Media
Question 2:
a) Apart from computer viruses, briefly explain THREE other security problems that can emanate from the Internet.
b) Differentiate between a static and a a dynamic web site.
c) What are the differences between electronic mail and paper mail ? How do these affect the modern office?
Define Word/byte rotation and XOR bit masking encryption technique to make sure secured transactions on the net? Word/byte rotation and XOR bit masking: In this process t
What is the use of status command, data output command, and data input command. A status command is used to test a variety of status conditions in the interface and the periphe
Identify three specific weaknesses in the design of the websites, derived from your analyses within Questions Part (c) and/or Question Part (a). There should be at least one weakne
How many types of size categories and data classes are there? There are five size categories (0-4) and 11 data classes only three of which are suitable for application tables:
Hashing collision resolution techniques are a) Chaining, b) Bucket addressing
Testing, Testing, Testing
IP specified that datagram can arrive in a different order than they were sent. If a fragment from one datagram arrives at a destination before all the segments from a previous dat
Q. How are control signals achieve the particular operation? The control signals are applied directly as binary inputs to the logic gates of the logic circuits. All these input
Define memory cycle time? It is the time delay needed between the initiations of two successive memory operations. Eg. The time among two successive read operations.
What is virtual address? The binary address that the processor used for either instruction or data known as virtual address.
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