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Spring/Feb 2013
Master of Business Administration- MBA Semester 3
MI0035 –Computer Networks-4 Credits
(Book ID: B1481)
Assignment Set -1 (60 marks)
Note: Assignment Set -1 must be written within 6-8 pages. Answer all questions.
Q.1 Explain all design issues for several layers in Computer. What is connection – oriented and connectionless service? 10 marks (350-400 words)
Answer : The various key design issues are present in several layers in computer networks. The important design issues are:
1. Addressing: Mechanism for identifying senders and receivers, on the network need some form of addressing. There are multiple processes running on
Q.2 Discuss OSI Reference model. 10 marks (350-400 words)
Answer : The OSI model is based on a proposal developed by the International Standards Organization as a first step towards international standardization of the protocols used in the various layers. The model is called the ISO – (International Standard Organization – Open Systems Interconnection) Reference Model because it deals with connecting open systems – that is, systems that follow the standard are
Q.3 Describe different types of Data transmission modes. 10 marks (350-400 words)
Answer : Types of data transmission :
Serial and Parallel Serial Transmission
In serial transmission one bit follows another, so we need only one communication channel rather than n to transmit data between two communicating devices. The advantage of serial over parallel transmission is that with only one communication channel, serial transmission reduces cost of transmission over parallel
Q.4 Define Switching. What is the difference between circuit switching and Packet Switching? 10 marks (350-400 words)
Answer : A network is a set of connected devices. Whenever we have multiple devices, we have the problem of how to connect them to make one-to-one communication possible. One of the better solutions is switching. A switch is network consists of a series of interlinked nodes, called switches. Switches are devices capable of
Q.5 Classify Guided medium (wired).Compare fibber optics and copper wire. 10 marks (350-400 words)
Answer : Guided Transmission Medium
Guided media, which are those that provide a conduit form one device to another, include twisted-pair cable, coaxial cable, and fibber-optic cable. A single travelling along any of these media is directed and contained by the physical limits of the medium. Twisted-pair and coaxial cable use metallic (copper) conductors that
Q.6 What are different types of satellites? 10 marks (350-400 words)
Answer : Communication satellites have some interesting properties that make them attractive for many applications. In its simplest form, a communication satellite can be thought of as a big microwave repeater in the sky. It contains several transponders, each of which listens twosome portion of the spectrum, amplifies
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