SPPU Embedded Operating Systems - December 2016 Exam Question Paper

SPPU Computer Engineering (Semester 6)
Embedded Operating Systems
December 2016

Total marks: --
Total time: --

INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

1(a) List and explain non-preemptive scheduling algorithms?

6 M

1(b) What are the message pipes? How they are useful to Kernel?

4 M

2(a) What is the difference between Thumb and ARM modes of ARM?

4 M

2(b) Give total number of registers found in ARM mode of ARM architecture?

4 M

2(c) What is tardiness and laxity?

2 M

3(a) Explain Linux kernel construction.

4 M

3(b) What are the following with respect to Linux kernel?
i) zImage
ii) vmlinuz

3 M

3(c) Draw a typical flash memory layout.

3 M

4(a) With the help of neat diagram, explain composite kernel image construction.

6 M

4(b) Give detail of Busy Box configuration.

4 M

5(a) What is the use of flash memory found on the embedded/target board? What are the limitation of flash memory?

6 M

5(b) What is journaling? Give the names of two file systems where itis used.

6 M

5(c) What are loadable modules with respect to device drivers? Give Commands for loading and unloading device driver modules.

6 M

6(a) What are the responsibilities of bootloader when designed for an embedded board?

6 M

6(b) How DHCP/BOOTP protocols are useful for embedded Linux development?

6 M

6(c) Write a note onMTD subsystem.

5 M

7(a) With the help of neat diagram, explain the Linux kenel debugging on target board.

7 M

7(b) Describe GDB,
DDD,
cbrowser/cscope.

6 M

7(c) What is SSH? When do you use it?

4 M

8(a) With the help of neat diagram,explain interfacing of BBB with Stepper motor.

7 M

8(b) Discuss the challenges faced by developer while debugging Linux kernel code.

6 M

8(c) What is gdbserver?

4 M

9(a) With the help of neat diagram, explain embedded anroid Architecture.

8 M

9(b) Explain different steps involved in porting Linux on embedded/target board.

8 M

10(a) Explain the following terms with respect to embedded anroid:
i) Launcher
ii) Activity manager
iii) Dalvic VM

8 M

10(b) What is required to preempt Linux kernel?

4 M

10(c) What are sources of preemption latency in Linux kernel?

4 M

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