Download JNTUA MCA 2019 May Reg-Supply 4th Sem 17F00403 Linux Programming Question Paper

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Code: 17F00403

MCA IV Semester Regular Examinations May 2019

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LINUX PROGRAMMING

(For students admitted in 2017 only)

Time: 3 hours Max. Marks: 60

Answer all the questions

1. Explain various process utilities available in Linux.

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   Write a shell script that deletes all lines containing a specified word in one or more files supplied as arguments to it.

   OR

   Write a short note on security using file permissions.

2. Explain about text processing utilities in Linux.

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3. Explain the following system calls:

   1. Open ()
   2. Seek ()
   3. read ()

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   Explain directory handling system calls.

   OR

   Explain the support given by Kernel for files in detail.

4. What do you mean by a hole in a file? How does the use of Iseek ( ) result in hole in a file? Explain with an example program.

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5. Explain the difference between fork () and exec () system calls.

   Explain in brief about reliable and unreliable signals.

   OR

   Explain the layout of a C program image in main memory.

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6. Define orphan process. Write a program to illustrate the orphan process concept.

7. Explain in detail about IPC between related processes using unnamed pipes.

   OR

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   Explain in detail about Kernel support for semaphores.

8. Compare the IPC functionality provided by message queues with shared memory.

9. Explain socket system calls for connectionless protocol.

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   OR

   Explain the usage of stream sockets using client-server message handling example.