Download JNTUA MCA 2014 Oct Supply 4th Sem 06MC405C Systems Programming Question Paper

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Code: 06MC405C

MCA IV Semester Supplementary Examinations September/October 2014

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SYSTEMS PROGRAMMING

(For students admitted in 2008 only)

Time: 3 hours Max Marks: 60

Answer any FIVE questions

All questions carry equal marks

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1. Differentiate between :
   1. Kernel modules and application programs.
   2. Policy and mechanism.
2. What is the reason for splitting the kernel’s role into various tasks?
3. Define a SCULL. What are the various types of devices that are implemented by the SCULL source?

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4. Give the procedure for registering and unregistering a char device into the module.
5. Describe various debugging techniques in the Linux kernel.
6. Explain the following system calls related memory management.
   1. brk( )
   2. kmalloc ()
   3. vmalloc ()

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   4. malloc ()
7. Explain briefly about Spinlocks & Completions and various system calls associated with them.
8. Explain the functions related to declare register and remove kernel timers.
9. What is a tasklet? Explain the purpose of a tasklet.

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10. Explain how spinlocks and circular buffers are used to protect data from concurrent access.
11. Explain various string functions available in Linux kernel for using 1/O ports.
12. Describe the procedure for implementation liseek ( ) system call with a sample code.

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