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2003 Course Telecommunication Network Management

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Total No. of Questions :12] [Total No. of Pages : 3 P1152 [3864] - 271 B.E. (E & T/C) TELECOMMUNICATION NETWORK MANAGEMENT (2003 Pattern) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Use two separate answer books for Section I and Section II. 2) Read the questions carefully and concentrate on intensions of questions asked. 3) Answering to the point will be given the weightage. 4) Whenever necessary, use neat diagrams to express your views. 5) If necessary, use of Logarithmic Tables or Slide Rule orPocket calculator. 6) Figures to the right side of question indicates full marks. 7) Assume suitable data, if necessary. SECTION - I Q1) a) How telephone exchanges can be classified? To which class of exchange customer is connected? Which types of lines are used for connecting exchanges? [6] b) With the help of neat diagram, explain how these exchanges are arranged hierarchically to manages the calls originated by customers connected to different local exchanges those are governed by different hierarchical domains. [6] c) What is the unit of traffic in telecommunication networks? What is the formula for calculating traffic on telecommunication networks? Explain constituent terms used in the formula. [6] OR Q2) a) Explain detail the simplex and duplex concepts used in telecommunication networks, How simplex system differ from duplex system? Explain duplex telecommunication transmission using 2 wires and 4 wires. How do you distinguish full duplex and half duplex systems. [8] P.T.O. b) Q3) a) With the help of neat diagram, explain in detail, the concepts of pulse and DTMF dialing used in telephone signaling to connect calls from one end to other end. [10] Integrated service data network is a representation of integration of various services such as _____,_______and__________. [1.5] ii) BRI services are characterized by ______ Channels and the data rates of _________. [1] iii) T1-PRI services are characterized by ________ Channels and the data rates of _________. [1] iv) E1-PRI services are characterized by ______ Channels the data rates of ________. [1] v) Coding on S/T and U interfaces are respectively represented by ________ and _______ . [1] vi) b) i) The ISDN reference points are represented by______, _______, ________, ________ and _________. [2.5] Compare ATM, Frame Relay and X.25 services. [8] OR Q4) Using neat diagrams, explain in detail, the normal and extended ISDN configurations, also explain these configurations with respect to various ISDN reference points as mentioned in ISDN Models. Also explain the type of data coding and interfaces that takes place at these reference points. [16] Q5) Explain in detail, the concepts related to narrowband, baseband and broadband systems. [16] OR Q6) What is meant by DSL? Explain the concept behind DSL technologies. What are the bands used by POTS, ISDN and DSL Technologies? Explain these bands and logic behind such allocation in detail using a neat figure. [16] SECTION - II Q7) What is meant by autonomous systems? What is meant by routing? What are the ways for routing the information? How the routing for autonomous systems is managed? What are the routing protocols used for routing within and in between autonomous systems explain in detail. [18] [3864]-271 2 OR Q8) Write the short notes on: a) Comparison between Static and Dynamic Routing. b) Comparison between Centralized and Distributed Routing. c) Principles of shortest path routing Algorithms. [6] [6] [6] Q9) Which are the parameters those are responsible for judging the quality of service (QoS) in telecommunication networks? Discuss in detail all the parameters and their relevance in various types of traffic on telecommunication [16] network. OR Q10)a) How telecommunication traffic is characterized? What is burstiness in telecommunication traffic? How burstiness is measured? [12] b) If for a particular telecommunication network has peak traffic of 2 Mbps and average traffic of 64 Kbps calculate the burstiness of such traffic conditions. [4] Q11)Describe in detail the layered model of telecommunication management, what are layers those layers? Describe each layer in detail. [16] OR Q12)a) b) Discuss security aspects of networks and how security is ensured? [8] Describe the features of Configuration Management Systems? [8] jjj [3864]-271 3

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