CS601 Data Communication Assignment 1 Solution Spring 2013

Question No 1:                                                                                                                         Marks 10

Suppose there is a network of 6 computers and 2 printers and they are connected to each other through mesh topology. You are required to calculate the number of possible links in the network. Also explain that how can point to point links make fault identification easy in mesh topology? Justify your answer with proper reasoning in 4 to 5 lines.

Solution:

A mesh topology provides redundant communication paths between some or all devices (partial or full mesh).

Question No 2:                                                                                                                         Marks 10

A distance learning university updated its exam schedule. Students are notified about this updating by using the following types of communication:

1) Announcement on university’s website.

2) Sending e-mail to every student.

3) Sending SMS/text on every student’s cell phone.

4) By making a call on every student’s cell phone.

5) Displaying notification by the newspaper.

a)      Identify each of the above types as simplex, half duplex and full duplex.

b)      According to the given scenario, which communication mode (simplex, half duplex, full duplex) is more effective? Discuss with proper reasoning.

Solution:

A distance learning university updated its exam schedule. Students are notified about this updating by using the following types of communication:

1) Announcement on university’s website.strong>simplx

2) Sending e-mail to every student.,,,,<half duplex

3) Sending SMS/text on every student’s cell phone.strong>simplex

4) By making a call on every student’s cell phone.strong>full duplex

5) Displaying notification by the newspaper. <half duplex

a)      Identify each of the above types as simplex, half duplex and full duplex.

b)     According to the given scenario, which communication mode (simplex, half duplex, full duplex) is more effective? Discuss with proper reasoning.