JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV ADVANCED TELECOMMUNICATION TECHNOLOGIES Previous Question Paper (November/December - 2018 - R15)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks.
Part A
What is BISDN?
Answer
BISDN stands for Broadband Integrated Services Digital Network. It is an ITU-T standard designed to provide high-speed, integrated digital services, including voice, data, and video, over a single network infrastructure using ATM (Asynchronous Transfer Mode) technology.
Describe traffic management aspects.
Answer
Traffic management in ATM networks ensures Quality of Service (QoS) through several mechanisms:
- Connection Admission Control (CAC): Determines if a new connection can be accepted without violating existing QoS guarantees.
- Usage Parameter Control (UPC): Monitors and polices traffic at the network entry point to ensure the user stays within negotiated traffic contracts.
- Congestion Control: Employs reactive and proactive techniques to maintain network stability during periods of high load.
List different types of AAL layers.
Answer
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Why is the cell in ATM protocol chosen as 53 bytes long? What is the role of CLP bit in ATM cell?
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What is the significance of layered network architecture?
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What are the different ATM service categories?
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What is the Role of PSTN in network management?
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A switching system serves 10000 subscribers with a traffic intensity of 0.1 E per subscriber. If there is a sudden spurt in the traffic increasing the average traffic by 50%, what is the effect on the arrival rate?
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What is the purpose of Echo control?
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Mention drawbacks of Transmitting Voice on Data Packets.
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Part B
What are the Services of BISDN? Give Examples.
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Discuss Capabilities for ISDN signaling.
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Discuss business and residential services with examples.
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Discuss the Broadband network performance.
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Describe Physical layer of UNI at 155/622 mph.
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What are different ATM adaptation layers? How AAL5 differs from other versions of AAL?
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Explain Relationship between B-ISDN PRM and OSI reference model.
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Discuss about ATM Layer: (i) Cell Structure (ii) cell header.
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Compare the features of single stage and multistage switching network configurations?
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Describe technological aspects of ATM switching.
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Write about (i ) Central memory switching element (ii) Ring type switching element
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Discuss cell header processing in switch fabrics.
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What is a telecommunication network system? Mention the various goals and applications of telecommunication systems.
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Give the concept of Network management in ATM.
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Describe the network management systems in enterprise networks and corresponding applications.
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Mention the problems faced during network management.
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Describe about conventional wire pair in the last mile.
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Explain how an IP Packet as Used for VoIP.
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Describe about CATV as a basic transport medium for the last mile.
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Write about overview of the ITU-T Rec.
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