TCP/IP

EACH QUESTION AROUND 250 TO 400 WORDS

Question 1

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]

Online submission via Turnitin is required for this assignment.

Rationale

This assignment relates to learning objectives of this subject.