ANSWER TEMPLATE ASSIGNMENT TWO.

ANSWER TEMPLATE ASSIGNMENT TWO
Type your answers in the spaces provided
Marking criteria: Your answers will be marked based on technical correctness,
completeness, clarity, originality and relevance. Proper use of referencing conventions
are expected and marks may be deducted for failure to comply. For discussion or
research-based questions, If you decide to submit a graphic (e.g. a screenshot or a
diagram) in support of your answer, the graphic must be relevant to your discussion, be
appropriately referenced, and must have sufficient resolution to show all its details
clearly and be of a reasonable size for normal reader viewing, with all or any text within
the graphic being legible and readable. Originality means the work is your own and is
expressed in your own words. An answer is unacceptable if it is composed mostly of
quoted material from other sources and may in some cases receive no marks as a result.
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Questions Mark
allocated
Mark
earned
Question 1: (10 marks) 5 each
table
Answer: Routing table of router R1:
Mask Network address Next-hop
address
Interface
/16 150.3.0.4 150.3.0.0 M0
/0 0.0.0.0 Default router M1
Routing table of router R4:
Mask Network address Next-hop
address
Interface
/16 150.3.0.1 150.3.0.0 M0
/18 150.32.0.1 150.3.0.0 M1
5 max
5 max
Question 2: (5 marks)

a) In the classful addressing, the router table has 3 columns
( subnet address, next hop address, interface number ). In the
classless type of addressing , the router table has at least 4
columns ( mask, address of network, next – hop’s address,
interface ).
1 max
b) The destination address of the packet arriving at R 3 is 200 . 11 .
60 . 120. The router decides to send it m 0 – R 2 – m 1.
2 max
c)
The destination address of the packet arriving at R 3 is 150 . 32 .
203 . 10. The router decides to send it m 0 – R 4 – m 1.
2 max
Question 3: (10 marks)
1) Congestion Controls in TCP / IP help to enhance the speed of
TCP. TCP formats the data into the form packet to transmit
using internet. One congestion control algorithm which is based
on loss is BIC ( binary increase congestion control ) and other is
CUBIC. Reno is another such algorithm. The major concept
behind these algorithms was that of packet loss. But BBR uses
the traffic speed to detect the best possible way to send it.
1 max