Questions and answers for exam Preparation

MCQs

Total Questions : 72 | Page 4 of 8 pages

Question 31.

Point out the error in the program in 16-bit platform?

#include<stdio.h>
int main()
{
struct bits
{
int i:40;
}bit;
printf("%d\n" , sizeof(bit));
return 0;
}

4
2
Error: Bit field too large
Error: Invalid member access in structure

Discuss Question

Answer: Option C. -> Error: Bit field too large

No answer description available for this question.

Question 32.

Point out the error in the program?

#include<stdio.h>
int main()
{
struct emp
{
char name[20];
float sa1;
};
struct emp e[10];
int i;
for(i=0; i

Error: invalid structure member
Error: Floating point formats not linked
No error
None of above

Discuss Question

Answer: Option B. -> Error: Floating point formats not linked

At run time it will show an error then program will be terminated.

Sample output: Turbo C (Windows)

c:`setminus`>myprogram

Sample

12.123

scanf : floating point formats not linked

Abnormal program termination

Question 33.

Point out the error in the program?

struct emp
{
int ecode;
struct emp e;
};

Error: in structure declaration
Linker Error
No Error
None of above

Discuss Question

Answer: Option A. -> Error: in structure declaration

The structure emp contains a member e of the same type.(i.e) struct emp. At this stage

compiler does not know the size of sttructure.

Question 34.

Point out the error in the program?

#include
#include
void modify(struct emp*);
struct emp
{
char emp[20];
int age;
};
int main()
{
struct emp e = {"Sanjay" , 35};
modify(&e);
printf("%s %d" , e.name , e.age);
return 0;
}
void modify(struct emp *p)
{
p ->age=p->age+2;
}

Error: in structure
Error: in prototype declaration unknown struct emp
No error
None of above

Discuss Question

Answer: Option B. -> Error: in prototype declaration unknown struct emp

The struct emp is mentioned in the prototype of the function modify() before declaring

the structure.To solve this problem declare struct emp before the modify() prototype.

Question 35.

Point out the error in the program?

#include<stdio.h>
int main()
{
struct a
{
float category:5;
char scheme:4;
};
printf("size=%d, sizeof(struct a));
return 0;
}

Error: invalid structure member in printf
Error in this float category:5; statement
No error
None of above

Discuss Question

Answer: Option B. -> Error in this float category:5; statement

Bit field type must be signed int or unsigned int.

The char type: char scheme:4; is also a valid statement.

Question 36.

Point out the error in the program?

typef struct data
struct data
{
int x;
mystruct *b;
};

Error: in structure declaration
Linker Error
No Error
None of above

Discuss Question

Answer: Option C. -> No Error

Here the type name mystruct is known at the point of declaring the structure,

as it is already defined.

Question 37.

What will be the output of the program ?

#include
struct course
{
int courseno;
char coursename[25];
};
int main()
{
struct course c[ ] = { {102, "Java"},
{103, "PHP"},
{104, "DotNet"} };
printf("%d " , a[1] .courseno);
printf("%s\n" , (*(c+2)) .coursename);
return 0;
}

103 DotNet
102 Java
103 PHP
104 DotNet

Discuss Question

Answer: Option A. -> 103 DotNet

No answer description available for this question.

Question 38.

What will be the output of the program ?

#include<stdio.h>
int main()
{
enum days {MON=-1, TUE, WED=6, THU, FRI, SAT};
printf("%d, %d, %d, %d, %d, %d\n", ++MON, TUE, WED, THU, FRI, SAT);
return 0;
}