ICT Services Management Subject
Question 2 (10 Marks)
(a) Large messages are often fragmented for transmission over the Internet. Detail two (2) reasons why this is done. (2 marks)
(b) Anosh has typed the server name www.abc.net.au into his web browser. How does Anosh’s computer find out what the server’s IP address is? Explain how this occurs. (2 marks)
(c) When a frame travels through a switched network, do individual switches know the frame’s entire path? Justify your answer. (2 marks)
(d) What is the term that describes the process of placing a message in the data field of another message? Give ONE practical example of this occurring in the protocols found in the five network layers. (2 marks)
(e) If a datagram header contains a destination port number of 1000, is the datagram destined for a client or server program? Justify your answer.
Solution (a) :
Reason 1 : Transmitting Large messages over the internet is not a good habit because it against both the constraints ( Time and Budget ). It might create the overhead of system failure issues. That's why Large messages are often fragmented before transmission so that the resulting fragments of the messages could easily transmit through a link with a smaller internet traffic and smaller maximum transmission unit (MTU) than transmitting the original Large message size.
Reason 2 : It is necessary to transmit the messages in their ideal and appropriate size so that the transmission could be smooth and the overhead of network delay could be reduced. Sending a bunch of individual packets improves the performance monitoring report effectively and efficiently because in that case, there will be no exception of Maximum Message Size. Apart from this, Recommendation of fragmenting large messages into smaller fragments will gradually improve the scalability , relevancy , effectivity and portability of the transmission.
ICT Services Management Subject Question 2 (10 Marks) (a) Large messages are often fragmented for transmission...
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