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Summer 2013
Master of Business Administration- MBA Semester 3
MI0035 –Computer Networks -4 Credits
(Book ID: B1481)
Assignment (60 marks)
Note: Answer all questions. Kindly note that answers for 10 marks questions should not exceed 400 word.
Each question is followed by evaluation scheme.
Q1. Videoconferencing is used to conduct meetings with the people who are located in far distance.
Videoconferencing is an example of which type of computer networks? Explain in detail the different types
of networks with example.
Answer :Videoconferencing type :
The wide area network (WAN) is a critical component of the infrastructure supporting video conferencing
Conducting a conference between two or more participants at different sites by using computer networks to
transmit audio and video data. For example, a point-
Q2. Explain the three principles of data communication system.
Answer : Principles of data communication system :
1.The distance over which data moves within a computer may vary from a few thousandths of an inch, as is
the case within a single IC chip, to as much as several feet along the backplane of the main circuit board. Over
such small distances, digital data may be transmitted as direct, two-level electrical signals over simple copper
conductors. Except for the fastest computers, circuit designers are not very concerned about the shape of the
conductor or the analog characteristics of signal transmission.
2.Frequently, however, data must
Q3. Data compression technique makes the file size smaller so that it can easily get transmitted over any
types of network such as internet, intranet or a local area network. Explain the different types of data
compression
Answer : Types of data compression :
The most basic compression techniques are described here:
Null compression : Replaces a series of blank spaces with a compression code, followed by a value that
represents the number of spaces.
Run-length compression : Expands on the null compression technique by compressing any series of four or
more repeating characters. The characters

2. Q4. A protocol helps in establishing the communication between two systems. Protocols are mainly divided
into asynchronous and synchronous protocols. List and describe in detail the different types of protocols
that are classified under the two main protocols.
Answer : Different types of protocols :
Two main classes of protocols are :
File retrieval protocols
This type of service was one of the earliest ways of retrieving information from computers connected to the
Internet. You could view the names of the files stored on the serving computer, but you didn't have any type
of graphics and sometimes no description of a
Q5. How are the different topologies of computer networks arranged? Explain the working of each of them
Answer :Topologies :
Network topology is the arrangement of the various elements (links, nodes, etc.) of a computer or biological
network. Essentially, it is the topological structure of a network, and may be depicted physically or logically.
Physical topology refers to the placement of the network's various components, including device location and
cable installation, while logical topology shows how data flows within a network, regardless of its physical
design. Distances between nodes, physical
Q6. a. Elaborate the arrangement of IP addressing with an example
Answer : Arrangement of IP addressing :
Every device connected to the Internet (or group of devices using the same account to access the Internet)
must be assigned an IP address so that Internet traffic sent from and directed to that device is directed
properly from its source to its destination. ISP’s assign IP addresses to their customers’ computers. An ISP
might assign a different IP address to a customer each time the customer makes an Internet connection
("dynamic IP address"), or it might assign an IP address to a customer permanently or for a fixed period of
time ("static IP address"). Either way, the IP address used by a computer attached to the Internet must be
unique for the duration of a particular session; that is, from connection to disconnection. ISP’s typically log
their customers’ connections, which means that the
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