multiple choice Questions With answer for c language

1. 1.. Observe following function declaration and choose the best answer:
int divide ( int a, int b = 2 )
a. Variable b is of integer type and will always have value 2
b. Variable a and b are of int type and the initial value of both variables is 2
c. Variable b is international scope and will have value 2
d. Variable b will have value 2 if not specified when calling function
Ans:-d
2 What will be the result of the following program ?
Void main()
{
Int a=8,b=2,c,*p;
C=(a=a+b,b=a/b,a=a*b,b=a-b);
P=&c;
Clrscr();
Printf(“n%d”,++*p);
}
a.
b.
c.
d.
50
46
36
40
Answer is:b
Q3 Which of the following gives the memory address of the first element in array foo, an
array with 100 elements?
A. foo[0];
B. foo;
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2. C. &foo;
D. foo[1];
Ans b
Q4 Which of the following correctly initializes an array arr to contain four elements each with
value 0?
I int [] arr = {0, 0, 0, 0};
II int [] arr = new int [4];
III int [] arr = new int [4];
for (int i = 0; i < arr. length; i ++)
arr [i] = 0;
A.I only
B.I and III only
C.II and III only
D.I, II, and III
ANSWER:D
Q5 Given a pointer to a structure containing a calendar date, which of the following statements
correctly references the day of the week?
a. *date.day
d. ptr->date.day
b. *(date.day)
e. ptr->date->day
c. ptr->day
ANSWER: D
Q6.What is ASCII values of EOF in text files?
a) 25
b) 28
c) 26
d) 22
ans.c
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3. Q7 Consider the declaration
int a=5, *b=&a;
The statement
Printf(“%d”, a * b);
Prints
a. 25
b. Garbage
c. 5* address of b
d. An error message
Answer is : d
Q8 Which of the following is false about functions ?
a.
b.
c.
d.
More that one function allowed in a program
A function can call itself
Constants can appear in the formal argument list
A function can call another function
Ans:-c
Q9) Which statement is correct for binary files?
a) its character are readable.
b) it saves a lot of disk space
c) both
d) none of these
ans.b
Q10 Evaluate !(1 && !(0 || 1))
a.
b.
c.
d.
True
False
Unevaluated table
None of the above
Ans:a
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