COMPUTER NETWORKS 4TH MARCH 2012 Examination Paper Answer ALL questions. Clearly cross out surplus answers. Time: 2 hours Any reference material brought into the examination room must be handed to the invigilator before the start of the examination. ANSWER ALL QUESTIONS Marks QUESTION 1 a) State FOUR (4) principles underpinning the Open Systems Interconnection (OSI) Reference Model. b) Describe the purpose of the physical layer of the OSI Reference Model. c) State THREE (3) elements
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Logical and Physical Network Design Logical and physical network designs are critical components in the successful development and implementation of today ’s networks and allow for the proper planning and structuring bettering enhancing the concept associated with networks. In order to better understand how the two concepts of a logical design and physical design work hand-in-hand‚ let ’s first look at what the concepts entail. A logical design is a concept‚ thought or theory as to how you
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between the bus and star topology. A network architecture in which a set of clients are connected by a shared communications line‚ called as a bus. A network consists of one central switch‚ hub or computer which acts as a conduit to transmit messages‚ called as a star. Bus networks are the simplest way to connect multiple clients‚ but often have problems when two clients want to transmit at the same time on the same bus. The star topology is a computer network connected via cables
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The Industrial Wireless Sensor Networks (IWSN) Market for Manufacturing & Process Control Automation market is expected to grow from $1.610 billion in 2011 to $3.795 billion in 2017‚ at a CAGR of 15.58% from 2012 to 2017. The key companies with respect to Industrial Wireless Sensor Networks (IWSN) Market for Manufacturing & Process Control Automation include Emerson (U.S.)‚ GE Energy (U.S.)‚ Honeywell (U.S.)‚ ABB (Switzerland)‚ Endress+Hauser (Switzerland)‚ Siemens (Germany)‚ Yokogawa (Japan)‚ Yamatake
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INDUSTRIAL TRAINING REPORT Submitted by:- Meenakshi Gupta 6040 1184751 Ece -5b LUDHIANA COLLEGE Of Engineering and Technology‚ Ludhiana Acknowledgement I would like to add a few heartfelt words for the people who were
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THE UNIVERSITY OF RWANDA NETWORK DESIGN PROJECT PROPOSAL BY: NSABIMANA JEAN CLAUDE REG. NUMBER: 11111128 SUPERVISOR: DR TWIZERE CELESTIN INTRODUCTION o Network is the interconnection of devices such that they can communicate one another‚ The university network is designed to link campus so that they have one Data center( ICT Center). o This network will link six campuses in star topology and in each campus there will be another kind of topology because of the structure of the
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Network Topology This paper will discuss the three types of network topologies discussed in Chapter 3. They are‚ hierarchical star‚ bus‚ and ring network topologies. Each has its advantages and disadvantages as will be discussed The hierarchical star is the most common one used in modern networks. It allows many pieces of equipment to be connected to the network via a hub or more commonly a switch. It allows for one continuous connection from the telecom room to the user end equipment. If the
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Assignment 2: Network Topology Design You are the network manager of a company that has grown from 10 employees to 100 employees in 12 months. Year 2 projected growth is estimated to be 100 additional employees located at a remote location. The aggressive growth has brought about some unique challenges and opportunities. The company has one remote warehouse and no off-site disaster recovery services or servers. The network design remains a non-redundant‚ flat topology. Your assignment must consider
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Network topology is the arrangement of the various elements (links‚ nodes‚ etc.) of a computer network.[1][2] Essentially‚ it is the topological[3] 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 interconnections‚ transmission
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software and that the vendors continually upgrade the software. Explain what is a network and types of network topology available. For each of the network topology‚ give advantages and disadvantages relating to them. A network is a series of points or nodes interconnected by communication paths. Networks can interconnect with other networks and contain subnetworks. There are four type of network. First‚ star topology. It interconnects many nodes through a central computer system‚ say a server. When
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