Monday, 11 July 2016

M3-R4: PROGRAMMING AND PROBLEM SOLVING THROUGH ‘C’ LANGUAGE July, 2015


M3-R4: PROGRAMMING AND PROBLEM SOLVING THROUGH ‘C’ LANGUAGE

NOTE:
IMPORTANT INSTRUCTIONS:

1. Question Paper in English and Hindi and Candidate can choose any one language.
2. In case of discrepancies in language, English version will be treated as final.
3. There are TWO PARTS in this Module/Paper. PART ONE contains FOUR questions and
PART TWO contains FIVE questions.
4. PART ONE is to be answered in the OMR ANSWER SHEET only, supplied with the question paper, as per the instructions contained therein. PART ONE is NOT to be answered in the answer book.
5. Maximum time allotted for PART ONE is ONE HOUR. Answer book for PART TWO will be
supplied at the table when the answer sheet for PART ONE is returned. However,candidates, who complete PART ONE earlier than one hour, can collect the answer book for PART TWO immediately after handing over the answer sheet for PART ONE.

TOTAL TIME: 3 HOURS TOTAL MARKS: 100
(PART ONE – 40; PART TWO – 60)

PART ONE
(Answer all the questions)

1. Each question below gives a multiple choice of answers. Choose the most appropriate one and enter in the “OMR” answer sheet supplied with the question paper, following instructions therein. (1x10)

1.1 Which of the following is the correct order of evaluation for the below expression?
z = x + y * z / 4 % 2 - 1
A) * / % + - =
B) = * / % + -
C) / * % - + =
D) * % / - + =

View Answer


1.2 Which of the following is the correct order if calling functions in the below code?
a = f1(23, 14) * f2(12/4) + f3();
A) f1, f2, f3
B) f3, f2, f1
C) Order may vary from compiler to compiler
D) None of the above

View Answer

1.3 How many times "IndiaBIX" is get printed?
int main()
{
int x;
for(x=-1; x<=10; x++)
{
if(x < 5)
continue;
else
break;
printf("IndiaBIX");
}
return 0;
}

A) Infinite times
B) 11 times
C) 0 time
D) 10 times

View Answer

1.4 What do the following declaration signify? void *cmp();
A) cmp is a pointer to an void type.
B) cmp is a void type pointer variable.
C) cmp is a function that return a void pointer.
D) cmp function returns nothing.

View Answer

1.5 When following piece of code is executed, what output will be generated?
#include<stdio.h>
int main(){
char arr[7]="Network";
printf("%s", arr);
return 0; }
A) Network
B) N
C) Garbage value
D) Compilation error
View Answer

1.6 The result of a Relational operation is always
A) either True or False
B) is less than or is more than
C) is equal or less or more
D) All of the above
View Answer

1.7 The keyword used to transfer control from a function back to the calling function is
A) switch
B) goto
C) go back
D) return
View Answer

1.8 What is the similarity between a structure, union and enumeration?
A) All of them let you define new values
B) All of them let you define new data types
C) All of them let you define new pointers
D) All of them let you define new structures
View Answer

1.9 Which of the following cannot be used as identifiers?
A) Spaces
B) Digits
C) Underscores
D) Letters
View Answer

1.10 How many times is a do while loop guaranteed to loop?
A) 0
B) Infinitely
C) 1
D) Variable
View Answer

2. Each statement below is either TRUE or FALSE. Choose the most appropriate one and ENTER in the “OMR” answer sheet supplied with the question paper, following instructions therein. (1x10)

2.1 Functions can be called either by value or reference.
2.2 Comma operator is used for separation.
2.3 The size of a structure can be determined by both size of variable name and size of (struct
tag).
2.4 While loop is post tested loop.
2.5 All of the following are valid expressions in C.
a = 2 + (b = 5);
a = b = c = 5;
a = 11 % 3;
2.6 A variable is a string that varies during program execution.
2.7 void (*ptr)() is a pointer to a function which receives nothing and returns nothing.
2.8 Calling a uninitialized variable will provide zero value.
2.9 C language cannot be used for database manipulation.
2.10 In the expression a=b=5 the order of Assignment is NOT decided by Associativity of
operators.

3. Match words and phrases in column X with the closest related meaning/word(s)/phrase(s) in column Y. Enter your selection in the “OMR” answer sheet supplied with the question paper, following instructions therein. (1x10)

                              X                                                                 Y

3.1 size of long int in byte                                   A. pp is pointer to an array of integer
3.2 pp[i] can be written as                                   B. Unending loop if no break statement
                                                                                  inside the body
3.3 Union                                                             C. returning a pointer to the beginning
                                                                                 of the block
3.4 malloc()                                                         D. pp is function that returns pointer
                                                                                 to integer
3.5 typedef                                                          E. allocates memory but does not
                                                                                clear memory
3.6 int(*pp)[10]                                                   F. two
3.7 Structure                                                       G. can be used to create variables of old
                                                                                 types
3.8 calloc( )                                                        H. one
3.9 int(*pp)(void*,void*)                                   I. is a memory location that is used by
                                                                               several different variables, which may
                                                                               be of different type
3.10 while(1)                                                      J. *(d + i)
                                                                           K. is different memory location that is
                                                                                 used by several different variables,
                                                                                which may be of different type
                                                                           L. can be used to create variables
                                                                                of new types
                                                                           M. allocate and clear memory


4. Each statement below has a blank space to fit one of the word(s) or phrase(s) in the list below. Enter your choice in the “OMR” answer sheet supplied with the question paper, following instructions therein. (1x10)


A. Bit                                 B. header file                                      C. fseekf
D. call by value                 E. static                                               F. exit
G. index                            H. stdio.h                                            I. break
J. Ctype.h                          K. unstructured                                   L. getc
M. pointer

4.1 An array element is accessed using an ________ number.
4.2 NULL is macro constant which has been defined in the header file ________.
4.3 Function ________ repositions the file position pointer to the beginning of the file.
4.4 A library function ________ causes an exit from the program in which it occurs.
4.5 The ________ statement causes an exit from the innermost loop or switch.
4.6 ________ data member can only be used in static functions.
4.7 ________ cannot be legitimately passed to a function.
4.8 The smallest data item a computer can process is called a(n) ________.
4.9 A function call mechanism that passes arguments to a function by passing a copy of the
values of the arguments is ________.
4.10 Name the header file to be included for the use of built in function isalnum() is ________.


PART TWO
(Answer any FOUR questions)

5.
a) Write a C program to read a line and print it reverse using recursive function.
b) Write a C program to print given number of terms of a Fibonacci series.
c) Write a C program to find the square root of a given quadratic equation.
(5+5+5)

6.
a) Write a C program to find size of structure without using sizeof operator.
b) What are merits and demerits of array in C?
c) What is dangling pointer in C? What is wild pointer in C? Give example.
(5+5+5)

7.
a) What will be output of the operations below?
main()
{
    int a=10,b=25;
    a=b++ + a++;
    b= ++b + ++a;
    printf(“%d %d \n”,a,b);
}

Answer : 37,64

b) Define void data type and write any three use of it.
c) Do you think C language support ‘pointer to function’? Explain it by any example?
(4+5+6)

8.
a) Write a C program that displays the recommended actions depending on the color of a
traffic light using the switch statement.
b) Write a C program to write a line of string in a text file.
(5+10)

9.
a) In the following declaration statement:
char c=’A’;
Variable c stores one byte of memory space while character constants ‘A’ stores one byte
memory space. How one byte variables can stores two byte character constant? What is
automatic type promotion in c?
b) Write a C program to modify the constant variable.
c) Why we use do-while loop in C? Also give any properties which you know.
(5+5+5)