Download JNTU MCA 4-semester SYSTEMS PROGRAMMING November 2008 Exam Question Paper

Code No: R6-49-MCA R6
M.C.A. IV Semester Supplimentary Examinations, November 2008
SYSTEMS PROGRAMMING
- – - -
Time: 3 hours Max Marks: 60
Answer any FIVE Questions
All Questions carry equal marks

1. What is device driver? What is the significance of device driver? How writing a device driver is different from writing an application program?

2. (a) What is the use of FIFO type of devices?
(b) What is the advantage of implementing different types of devices by scull?
(c) How do you give names to char devices?

3. Explain in detail different Debugging techniques.

4. (a) What are the problems associated with memory management of kernel?
(b) Why kernel divides pages in to zones?

5. Explain various functions offered by kernel to modify or test single bits atomically?

6. (a) “Accessing the 64-bit jiffy count is not as straight forward as accessing jiffies”.Explain?
(b) What is the purpose of busy waiting? What are its advantages and disadvantages?

7. How auto detection of IRQ number is done by the driver? Discuss in detail?

8. (a) Give a brief note on testing the scullpipe Driver.
(b) Give a note on the following portability issues:
i. Time intervals
ii. Page size.

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