CS With S.N Rai
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Welcome to your one-stop learning hub for Class 12 Computer Science! 🚀
Here you’ll get simplified notes, coding guidance, board exam tips, and doubt support.
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22/01/2026
15/01/2026
Practice Paper with answer for class XII computer Science
25/11/2025
DBMS concepts for class XI computer science theory and practical both.
25/11/2025
Comment for the complete practical file.
25/11/2025
Text if you want complete file.
10/11/2025
DBMS notes for Class-XII CS
10/11/2025
DBMS Notes for class XII
Which Python file mode is used to open a file for both reading and writing, but raises a `File-Not-Found` error if the file does not already exist?
A. 'w+'
B. 'a+'
C. 'r+'
D. 'w'
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