Nalanda Open University
Annual Examination 2016
Bachelor in Computer Application Part-II
Paper-VIII (Introduction to System Software) CS-63
Time: 3.00 Hrs. Full Marks: 100(80+20)
Answer any four questions. All questions carry equal marks.
1. Write a shell program which writes all the odd-numbered lines of a text-file into
another file.
2. List and execute the following UNIX commands:
To set the file permissions of any given file: read, write, execute permissions for
the owner' and execute permission to the group, and read and execute permissions
to the others.
Create a file using any editor.
To display various processes running.
To scan directories and locate any file, given the file-name by the user.
To send a message to any user who is already logged in.
3. Write an algorithm and draw the corresponding flowchart for generating the
Fibonacci series.
4. What is a scheduler? Explain any two types of schedulers.
5. What are the advantages of dynamic partition memory management?