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Module-1
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a. List the differences between ANSI C and KandR(K & R)C. Discuss any two differences indetail. (08 Marks)
b. What is the necessity of sysconf( ), pathconf( ) and fpathconf( ) functions? Write a C/C++
programme to illustrate the same. (08 Marks)
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i) to check whether the complier is ANSI C complaint
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ii) to get the physical line number of a source fileiii) to get file name
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Module-2
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5 a. Discuss how a C program is started and terminated in various ways along with suitable
diagram.
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(10 Marks)O b. Write a C program to avoid Zombie process by forking twice. (06 Marks)
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What is the use of `setjmp' and `Iongjmp' function? Write a C program to illustrate thesame.
(08 Marks)
b. What is Job control? List the 3 forms of support needed for Job control. (05 Marks)
c. Compare 'fork' and ?vfork' systemcall. (03 Marks)
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MEE
USN
Seventh Semester B.E. Degree Examination, Dec.2019/Jan.2020
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UNIX System ProgrammingTime: 3 hrs. Max. Marks: 80
Note: Answer any FIVE full questions, choosing ONE full question
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from each module.
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a. List the differences between ANSI C and KandR(K & R)C. Discuss any two differences in
detail. (08 Marks)
b. What is the necessity of sysconf( ), pathconf( ) and fpathconf( ) functions? Write a C/C++
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programme to illustrate the same. (08 Marks)I.)
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iv)
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to get date and time. (06 Marks)
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Module-4
7 a. Define signal. Categorize the ways in which a process can handle the signals. (05 Marks)
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b. Discuss the working of `sigprocmask' API. Explain all the parameters in detail. (08 Marks)c. Mention any 3 Daemon characteristics. (03 Marks)
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signal mask. (08 Marks)b. Discuss how error logging is done by a Daemon process with suitable diagram. (08 Marks)
Module-5
9 a. Define IPC. List the 1PC types supported in UNIX system. (05 Marks)
b. How to create a pipe in UNIX programming? List the limitations of pipe. (04 Marks)
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c. Develop a code snippet that the parent sends "Hello world" message to the child processthrough the pipe. The child on receiving this message should display it on standard output.
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