Tuesday, December 16, 2014

Computer Programming And Problem Solving Through "C" - Question Paper of BCA 1st Year September 2013 - Panjab University

Panjab University Chandigarh

Computer Programming And Problem Solving Through "C"

Paper : BCA 1st Year
Time : 3 Hrs.
M.Marks : 90

Note : Attempt five questions in all. select one question each from Sections A-D. Question 9 is compulsory.

Section - A

1. (a) Write an algorithm to find a maximum number from a given list of n numbers.    9
(b) what do you mean by Program Debugging ? Explain with example.                          9

2. (a) Explain various I/O statements of C- language with suitable examples.                 9
(b) What is the difference between standard and formatted statements ?                         9

Section - B

3. (a) Explain switch statements along with break, continue and jump statements.                 9
(b) How global and local variables are defined and passed to various functions ? Explain.    9

4. (a) What is the difference between "Call-by-value" and "Call-by-reference" ? Explain.     9
(b) Explain "while" , "do-while" and "for-loop" statements.                                                    9

Section - C

5. (a) Why pre-processor directives are imporatnt ? Explain the conditional preprocessor through examples.                                                                                                                                9
(b) How arrays of characters are defined and used in C -programs ?                                    9

6. (a) write notes on "Macros" and "Header files".                                                                9
(b) why pointers are important ? How are they initialized and accessed in C-program?       9

Section - D

7. (a) What is the difference between Structures and Unions ? Write a C-program to demonstrate their usage.                                                                                                                                             9
(b) How string variables are defined ? Write a C-program to read and write to string variables. 9

8. (a) How arrays of structures are created ? Explain by taking a suitable example and also write a program to access the elements of arrays of structures.                                                                 9
(b) How data files are created and opened for reading and writing operations ? Explain.           9

9. Explain:
(i) Any two string handling functions
(ii) Flow-Charts
(iii) Steps in development of a program
(iv) Asssignment statements
(v) Operators of C-language
(vi) Indentifiers
(vii) Recursion
(viii) Expressions
(ix) Constants and variables                                                                                          2*9 = 18



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