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Problem
a) Distributed network architecture is whereby services are executed and distributed among various computers. Give two advantages and two disadvantages of the distributed architecture.
b) With the use of diagram(s), illustrate how the star topology is different to the bus topology.
c) The figure below shows a typical firewall connection. Why the use of a firewall is important.
d) Explain in details the importance of encryption and how encryption and decryption work. Use a diagram to illustrate your answer.
How many bits must be decoded for chip select? What is the size of decoder when 128 × 8 RAM chips are required to provide a memory capacity of 2048 bytes? Ans. All higher order l
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Trunks are the lines that run between (A) Subscribers and exchange (B) Switching system and power plant (C) Local area network (D) Switching stations Ans:
Step 1: Click on the icon in the object tool bar Or Insert -> SSI Step 2: Select the file Step 3: Add the file Step 4: Provide the URL (where to be attached) Step
What are preprocessor directives? Preprocessor directives: These are the commands given to a program called as pre-processor that processes the source code before it passes by
Describe queue? Ans: It is a type of data structure in which the data are stored in and retrieved on a First in first out (FIFO) basis. It grows in the direction of increasin
Does it makes sense for two domain servers to contain exactly the same set of names? Why or why not? Yes. This is very advantageous for 2-domain servers having same set of name
Question: (a) In order to encourage the development mobile technologies, Europe has opted for standardisation. What is the rationale behind this? Provide concrete examples of h
A dialog box, generally square, that records an on or off value.
Explain Telephone hand set and it's working. A standard telephone set is consisted of a transmitter, electrical network and a receiver for equalization, connected circuitry to
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