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Interview Questions on New & Delete in C++: 5

Question: 1

Which of the following is Memory Leak detection tool?

(A) GC++
(B) KDevelop
(C) GIT
(D) Valgrind

Compiler
Level: Expert Category: new_delete
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Question: 2

Which part of memory is used for the allocation of local variables declared inside any function.

(A) Heap
(B) Stack
(C) Address Space
(D) Depends on Compiler

Compiler
Level: Expert Category: new_delete
[Posted by: | ]

Question: 3

Find the output of following code

#include <iostream>

using namespace std;

int main(){
    
    int * ptr = new int;
    cout<<ptr<<" | "<<*ptr;
    return 0;
    
}

(A) Address of memory allocated | Garbage Value
(B) Address of memory allocated | 0
(C) Address of ptr | 0
(D) Address of ptr | Garbage Value

Compiler
Level: Beginner Category: new_delete
[Posted by: | ]

Question: 4

How this C++ code behaves?

#include <iostream>

using namespace std;

int main(){
    
    int * ptr = NULL;
    ptr++;
    delete ptr;
    return 0;
}

(A) Program runs without any error
(B) Compilation Error
(C) Runtime error (Segmentation fault)
(D) None of the above

Compiler
Level: Beginner Category: new_delete
[Posted by: | ]

Question: 5

Which of the following Exception is thrown by C++ 'new'
when there is no memory available to allocate?

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Interview Questions on New & Delete in C++: 5

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