JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV EMBEDDED SYSTEM DESIGN 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 and may have a, b, c as sub questions.
Part A
What is “Time-to-prototype”?
Answer
Time-to-prototype refers to the duration required to develop a functional model or initial version of an embedded system from its conceptual design. It is a critical metric in product development cycles that measures the speed at which a design can be validated before full-scale production.
What is the difference between a system and an embedded system?
Answer
A system is a general-purpose collection of components designed to perform a wide variety of tasks, often reconfigurable by the user. An embedded system is a specialized computing system designed to perform a dedicated function or a set of specific functions, often integrated within a larger mechanical or electrical system, with strict constraints on power, memory, and real-time performance.
What is memory shadowing? What is its advantage?
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What are the uses of ASIC in designing an embedded system?
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What is “Assembly Language” programming?
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Explain the need of a watchdog timer.
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Why is thread creation faster than process creation?
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Which operating system is suitable for embedded system design? Explain.
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What is priority inversion?
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Give the features of RTOS.
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Part B
What is an embedded system? Explain the different applications of embedded systems.
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Explain quality attribute in the embedded system development context? What are the different quality attributes to be considered in an embedded system design.
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What is the difference between big-endian and little-endian processors? Give an example of each?
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Explain the different on-board communication interfaces in brief.
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Explain the advantages of “Assembly language” based embedded firmware development.
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Explain the advantages of “High Level language” based embedded firmware development.
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What is static function? What is the difference between static and global functions?
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What is function pointer? How is it related to function? Explain the use of function pointers.
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Explain the various factors to be considered for the selection of scheduling criteria.
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Explain all activities involved in context switching.
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Explain how accurate time management is achieved in real time kernel.
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Explain how multithreading can improve the performance of an application.
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What is Inter Process Communication (IPC)? Give an overview of different IPC mechanisms adopted by various operating systems.
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Explain the different functional and non-functional requirement that needs to be evaluated in the selection of an RTOS.
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