STUPIDSID
1 (a)
What are POSIX standards? Explain different subsets of POSIX standards. Write a C or C++ program to check and dispaly_POSIX VERSION/
6 M
1 (b)
Write a C OR C++ program to check the following compile time limits, along with its minimum value: i) supplemental groups, ii) maximum number of links of a file iii) number of simultaneous asynchronous I/O, iv) real time signals v) maximum number of child process.
8 M
1 (c)
List common set of APIs in UNIX system. Discuss the common characteristics of APIs along with their error status codes.
6 M
2 (a)
Mention the different file types available in UNIX / POSIX systems.
8 M
2 (b)
List out the common files of UNIX systems with their usage and general file attributes.
8 M
2 (c)
Differentiate between file stream pointer and file descriptor.
4 M
3 (a)
Write the prototype and structure of APIs mentioned. Write a simple program for using these APIs. i) utime ii) link
12 M
3 (b)
Describe the device file APIs along with a sample program.
8 M
4 (a)
Outline the environment structure of a process and mention any FOUR environment variables.
6 M
4 (b)
Give reasons as to why shared libraries are better, with an example.
6 M
4 (c)
Mention at least SIX resources limits and briefly explain the limits that they put on a process.
8 M
5 (a)
Explain various exec functions along with its prototypes and diagram that shows the relationships among them.
10 M
5 (b)
Explain the system function with its prototype.
4 M
5 (c)
Explain network login, with suitable diagram.
6 M
6 (a)
Explain error handling for a Daemon process with a neat block diagram. Write the system library functions associated with error logging.
8 M
6 (b)
Write the timeline or program sequence of execution for sigsetjmp and siglongjmp handling.
8 M
6 (c)
Write the prototype of ALARM and PAUSE function and explain how they operate.
4 M
7 (a)
Write the neat diagrammatic representation of a message queue with proper labelling. Write the data structure associated with message queue along with its elements detail.
8 M
7 (b)
Write the prototype of system library calls available to manipulate shared memory and semaphores.
7 M
7 (c)
Write a simple C program to illustrate the concept of a co-process.
5 M
8 (a)
Explain with a neat diagram, how STREAM PIPES can be used to implement client server model.
10 M
8 (b)
Explain POPEN and PCLOSE functions with prototypes and demonstrate its usage with a sample C program.
10 M
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