WBUT Embedded System Question Paper

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Time Allotted: 3 Hours

Full Marks: 70

GROUP A

( Multiple Choice Type Questions )
1. Choose the correct alternatives for any ten of the following :
10 1 = 10

i) RTOS is one which
a) allows flexible scheduling of the system resource
to several task
b) controls task synchronization
c it is an operating system for microcontroller
d) it is an operating system for preemptive scheduling.

ii) An architecture used in any microcontroller is called
a) Harvard architecture
b) Vonneuman architecture
c) Princeton architecture
d) both (a) and (c).


iii) Which of the following describes the ROTS design
philosophy best ?
a) Maximize the throughput of the system
b) Maximize the processor utilization
c) Maximizing the response time
d) Response within certain stipulated time period.

iv) Which one of the following scheduling algorithms
checks the rate of occurrence of the task ?
a) RAM b) EDF
c) Co-operative d) All of th se.

v) Cyclic scheduling is best for which of the following
tasks ?
a) Aperiodic b) Sporadic
c) Periodic d) None of these.

vi) Which software architecture is the most complex ?
a) Round robin
b) Round robin with interrupt
c) Functional queue scheduling
d) RTOS.

vii) 8051 is …………… bit microcontroller.
a) 16 b) 8
c) 32 d) none of these.

viii) A small scale embedded system is designed with
………… bit microcontroller.
a) 8 b) 16
c) 32 d) 8 or 16.


ix) Automobile engine control system is the example of
a) soft real time b) hard real time
c) both (a) and (b) d) none of these.

x) Which of the following devices is not an embedded
system ?
a) Cell phone b) Mainframe
c) Modem d) Automobile.

xi) Real time means
a) actual time
b) time from start of task
c) time measure using system cl ck of RTOS
d) time that has a fixed unal erable zero reference in
which a clock advances at constant interval and
which cannot be reloaded

xii) Object code is
a) input of assembler b) output of assembler
c) intermediate code d) none of these.

GROUP – B

( Sho t Answer Type Questions )
Answer any three of the following. 3 5 = 15

2. Explain Round robin scheduling algorithm in embedded
system.

3. What is shared data problem ? Briefly discuss the solution
to overcome this problem.

4. What is priority inversion problem ?

5. Describe the design methodology of embedded system.

6. How to initialize USART in synchronous mode ?



Previous year WBUT B. tech 6 Semester Embedded System Question Paper






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