C++

C++

Question: Which of the following special symbol allowed in a variable name?
A
* (asterisk)

B
| (pipeline)

C
- (hyphen)

D
_ (underscore)

Note: Not available
1. Report
Question: Is there any difference between following declarations? 1 : extern int fun(); 2 : int fun();
A
Both are identical

B
No difference, except extern int fun(); is probably in another file

C
int fun(); is overrided with extern int fun();

D
None of these

Note: Not available
1. Report
Question: How would you round off a value from 1.66 to 2.0?
A
ceil(1.66)

B
floor(1.66)

C
roundup(1.66)

D
roundto(1.66)

Note: Not available
1. Report
Question: By default a real number is treated as a
A
float

B
double

C
long double

D
far double

Note: Not available
1. Report
Question: Which of the following is not user defined data type? 1.
struct book { char name[10]; float price; int pages; };
2 :
long int l = 2.35;
3 :
enum day {Sun, Mon, Tue, Wed};
A
1

B
2

C
3

D
Both 1 and 2

Note: Not available
1. Report
Question: Is the following statement a declaration or definition? extern int i;
A
Declaration

B
Definition

C
Function

D
Error

Note: Not available
1. Report
Question: Identify which of the following are declarations 1 : extern int x; 2 : float square ( float x ) { ... } 3 : double pow(double, double);
A
1

B
2

C
1 and 3

D
3

Note: Not available
1. Report
Question: In the following program where is the variable a getting defined and where it is getting declared? #include<stdio.h> int main() { extern int a; printf("%d\n", a); return 0; } int a=20
A
extern int a is declaration, int a = 20 is the definition

B
int a = 20 is declaration, extern int a is the definition

C
int a = 20 is definition, a is not defined

D
a is declared, a is not defined

Note: Not available
1. Report
Question: When we mention the prototype of a function?
A
Defining

B
Declaring

C
Prototyping

D
Calling

Note: Not available
1. Report
Question: Which two lines set up things so that the libraries with console input and output facilities are available to the c++ program?
A
#include <iostream> using namespace std;

B
#include <conio.h> using namespace std;

C
#include <stdio.h> using namespace std;

D
#include <iostream.h> using namespace std;

Note: Not available
1. Report

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Question: Which of the following special symbol allowed in a variable name?

Question: Is there any difference between following declarations? 1 : extern int fun(); 2 : int fun();

Question: How would you round off a value from 1.66 to 2.0?

Question: By default a real number is treated as a

Question: Which of the following is not user defined data type? 1.
struct book { char name[10]; float price; int pages; };
2 :
long int l = 2.35;
3 :
enum day {Sun, Mon, Tue, Wed};

Question: Is the following statement a declaration or definition? extern int i;

Question: Identify which of the following are declarations 1 : extern int x; 2 : float square ( float x ) { ... } 3 : double pow(double, double);

Question: In the following program where is the variable a getting defined and where it is getting declared? #include<stdio.h> int main() { extern int a; printf("%d\n", a); return 0; } int a=20

Question: When we mention the prototype of a function?

Question: Which two lines set up things so that the libraries with console input and output facilities are available to the c++ program?

Question: Which of the following special symbol allowed in a variable name?

Question: Is there any difference between following declarations? 1 : extern int fun(); 2 : int fun();

Question: How would you round off a value from 1.66 to 2.0?

Question: By default a real number is treated as a

Question: Which of the following is not user defined data type? 1.struct book { char name[10]; float price; int pages; }; 2 :long int l = 2.35; 3 :enum day {Sun, Mon, Tue, Wed};

Question: Is the following statement a declaration or definition? extern int i;

Question: Identify which of the following are declarations 1 : extern int x; 2 : float square ( float x ) { ... } 3 : double pow(double, double);

Question: In the following program where is the variable a getting defined and where it is getting declared? #include<stdio.h> int main() { extern int a; printf("%d\n", a); return 0; } int a=20

Question: When we mention the prototype of a function?

Question: Which two lines set up things so that the libraries with console input and output facilities are available to the c++ program?

Question: Which of the following is not user defined data type? 1.
struct book { char name[10]; float price; int pages; };
2 :
long int l = 2.35;
3 :
enum day {Sun, Mon, Tue, Wed};