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Discuss why packet switched networks are used for data communication instead of circuit switched [3 marks].

 

Question 2

 

(Show your working and give a short explanation for each answer.)

 

An ISP is granted a block of addresses starting with 150.80.0.0/16. The ISP needs to distribute these blocks to 2600 customers as follows:[10  marks]

 

a. The first group has 200 medium-size businesses; each needs approximately 128 addresses. 

b. The second group has 400small-size  businesses; each needs approximately 16 addresses. 

c. The third group has 2000 households; each needs 4 addresses

 

Design the sub blocks and give the slash notation for each sub block. Find out how many addresses are still available after these allocations.

 

Question 3

 

Consider the diagram below. Which of the two central routers (R1 and R2) is more critical for network operations and why? [3 marks]

 

Question 4

 

TCP opens a connection using an initial sequence number (ISN) of 14,534. The other party opens the connection with an ISN of 21,732.[10 marks]

 

a. Show the three TCP segments during the connection establishment.

 

b. Show the contents of the segments during the data transmission if the initiator sends a segment containing the message " Hello dear customer" and the other party answers with a segment containing " Hi there seller".

 

c.Show  the contents of the segments during the connection termination

 

Question 5

 

Compare and contrast DCHP and the ICMP messages that were previously used for startup configuration. What are the advantages of DHCP that caused it to be the popular solution? [ 4 marks]

 

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Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Hac habitasse platea dictumst vestibulum rhoncus est pellentesque. Amet dictum sit amet justo donec enim diam vulputate ut. Neque convallis a cras semper auctor neque vitae. Elit at imperdiet dui accumsan. Nisl condimentum id venenatis a condimentum vitae sapien pellentesque. Imperdiet massa tincidunt nunc pulvinar sapien et ligula. Malesuada fames ac turpis egestas maecenas pharetra convallis posuere. Et ultrices neque ornare aenean euismod. Suscipit tellus mauris a diam maecenas sed enim. Potenti nullam ac tortor vitae purus faucibus ornare. Morbi tristique senectus et netus et malesuada. Morbi tristique senectus et netus et malesuada. Tellus pellentesque eu tincidunt tortor aliquam. Sit amet purus gravida quis blandit. Nec feugiat in fermentum posuere urna. Vel orci porta non pulvinar neque laoreet suspendisse interdum. Ultricies tristique nulla aliquet enim tortor at auctor urna. Orci sagittis eu volutpat odio facilisis mauris sit amet.

Tellus molestie nunc non blandit massa enim nec dui. Tellus molestie nunc non blandit massa enim nec dui. Ac tortor vitae purus faucibus ornare suspendisse sed nisi. Pharetra et ultrices neque ornare aenean euismod. Pretium viverra suspendisse potenti nullam ac tortor vitae. Morbi quis commodo odio aenean sed. At consectetur lorem donec massa sapien faucibus et. Nisi quis eleifend quam adipiscing vitae proin sagittis nisl rhoncus. Duis at tellus at urna condimentum mattis pellentesque. Vivamus at augue eget arcu dictum varius duis at. Justo donec enim diam vulputate ut. Blandit libero volutpat sed cras ornare arcu. Ac felis donec et odio pellentesque diam volutpat commodo. Convallis a cras semper auctor neque. Tempus iaculis urna id volutpat lacus. Tortor consequat id porta nibh.

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ACC307 – Accounting Theory

Case Study1:Revisiting the conceptual frameworkThe FASB and IASB began a joint agenda project to revisit their conceptual frameworks for financial accounting and reporting in 2002. Each board bases its accounting standards decisions in large part on the foundation of objectives, characteristics, def ...

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Humanities

This last discussion board question will focus on the idea of Eurocentric behavior during the time of exploration. Merriam-Webster defines this as "centered on Europe or the Europeans; especially : reflecting a tendency to interpret the world in terms of western and especially European or Anglo-Amer ...

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Leadership, Decision Making and Ethics

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