‘C’ programs are converted into machine language with the help of an interpreter.

July 5, 2021 in C and CPP

‘C’ programs are converted into machine language with the help of an interpreter.

Each statement below is either TRUE or FALSE. Choose the most appropriate one
and ENTER in the “tear-off” sheet attached to the question paper, following
instructions therein.

2.1 ‘C’ programs are converted into machine language with the help of an interpreter.
2.2 Every ‘C’ program must contain a main( ).
2.3 Putchar( ) is used only for single character input.
2.4 calloc(…) allocates a block of memory for an array of elements of a certain size.
2.5 A printf( ) statement can generate only one line of output.
2.6 A switch expression can be of any data type.
2.7 ‘While’ is an entry as well as exit controlled loop statement.
2.8 ‘C’ treats character string simply as arrays of characters.
2.9 A function in ‘C’ should have at least one argument.
2.10 sprintf(…) writes data to the character array whereas printf(…) writes data to the
standard output device.

July 5, 2021 in C and CPP

Regarding the scope of the variables; identify the incorrect statement

1.10 Regarding the scope of the variables; identify the incorrect statement:
A) automatic variables are automatically initialized to 0
B) static variables are automatically initialized to 0
C) the address of a register variable is not accessible
D) static variables cannot be initialized with any expression

July 5, 2021 in C and CPP

Given the piece of code

1.9 Given the piece of code
int a[50];
int *pa;
pa=a;
To access the 6th element of the array which of the following is incorrect?
A) *(a+5)
B) a[5]
C) pa[5]
D) *(*pa + 5)

July 5, 2021 in C and CPP

What does the following function print

1.8 What does the following function print?
func(int i)
{if(i%2) return 0;
else return 1;}
main( )
{
int=3;
i=func(i);
i=func(i);
printf(“%d”, i);
}
A) 3
B) 1
C) 0
D) 2

July 5, 2021 in C and CPP

How is a variable accessed from another file

1.7 How is a variable accessed from another file?
A) via the extern specifier.
B) via the auto specifier.
C) via the global specifier.
D) via the pointer specifier.

July 5, 2021 in C and CPP

When applied to a variable, what does the unary “&” operator yield

1.6 When applied to a variable, what does the unary “&” operator yield?
A) The variable’s address
B) The variable’s right value
C) The variable’s binary form
D) The variable’s value

July 5, 2021 in C and CPP

What is the maximum number that can be printed using printf

1.5 Suppose that x is initialized as:
short int x; /* assume x is 16 bits in size */
What is the maximum number that can be printed using printf (“%d\n”, x),
A) 127
B) 128
C) 255
D) 32,767

July 5, 2021 in C and CPP

The pointer ptr points to which string

1.4 char *ptr;
char myString[ ] = “abcdefg”;
ptr = myString;
ptr += 5;
The pointer ptr points to which string?
A) fg
B) efg
C) defg
D) cdefg

July 5, 2021 in C and CPP

int warr[3][2][2] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}

1.3 int warr[3][2][2] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};
What will be the value of warr[2][1][0]?
A) 5
B) 7
C) 9
D) 11

July 5, 2021 in C and CPP

With every use of memory allocation function

1.2 With every use of memory allocation function, what function should be used to release
allocated memory which is no longer needed?
A) dropmem( )
B) dealloc( )
C) release( )
D) free( )