21⟩ What is the scope of the variable declared in the user definied function? a) whole program b) only inside the {} block c) both a and b d) none of the mentioned
b) only inside the {} block
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32 C++ Pointers And Functions Questions And Answers
22⟩ What is size of generic pointer in c? a) 0 b) 1 c) 2 d) Null
c) 2
23⟩ How many minimum number of functions are need to be presented in c++? a) 0 b) 1 c) 2 d) 3
b) 1
24⟩ What is meaning of following declaration? int(*p[5])(); a) p is pointer to function. b) p is array of pointer to function. c) p is pointer to such function which return type is array. d) p is pointer to array of function
b) p is array of pointer to function.
25⟩ Output of this program? #include <iostream> using namespace std; int main() { int i; char *arr[] = {"C", "C++", "Java", "VBA"}; char *(*ptr)[4] = &arr; cout << ++(*ptr)[2]; return 0; } a) ava b) java c) c++ d) compile time error
a) ava
26⟩ Which is more effective while calling the functions? a) call by value b) call by reference c) call by pointer d) none of the mentioned
b) call by reference
27⟩ The output of this program? #include <iostream> using namespace std; int main() { int arr[] = {4, 5, 6, 7}; int *p = (arr + 1); cout << *p; return 0; } a) 4 b) 5 c) 6 d) 7
b) 5
28⟩ How many max number of arguments can present in function in c99 compiler? a) 99 b) 90 c) 102 d) 127
d) 127
29⟩ What are mandatory parts in function declaration? a) return type,function name b) return type,function name,parameters c) both a and b d) none of the mentioned
a) return type,function name
30⟩ The number of lines that exit an input in the flowchart?
?
31⟩ In which part of the for loop termination condition is checked? for(i;ii;iii) {iv}
32⟩ Where does the execution of the program starts? a) user-defined function b) main function c) void function d) none of the mentioned
b) main function
