C Interview Questions & Answers part 1

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Q: – Explain about storage of union elements.

The key point about storage of union elements is that Union elements are use to share common memory space.

Q: – Can we write a program with out using main() function?

No

Q: – Explain “method”?

A Method is a programmed procedure. It is defined as part of a class also included in any object of that class. Class can have more than one methods. It can be re-used in multiple objects.

Q: – What is the difference b/n run time binding and compile time binding?

When the address of functions are determined a run time than it is called run time or dynamic binding or late binding. While when the addresses of functions are determined a compile time than it is called compile time or static binding or early binding.

Q: – Why do you need the #endif directive?

The key difference b/n linker and linkage is that linker is used to change an object code into an executable code by linking together the necessary build in functions. Place where we declare the variable in a program is called the linkage of variable.

Q: – What is a memory leak?

Memory leak is that when memory is allocated but its not released because of an application consume memory reducing the available memory for other applications and causing the system to page virtual memory to the hard drive showing the application or crashing the application. When the computer memory resource limits are reached.

Q: – What is the Double LinkedList?

Double Linked List is that each data item in the list can point both side(next or previous)data item.

Q: – What is the Double LinkedList?

Double Linked List is that each data item in the list can point both side(next or previous)data item.

Submitted By:-Rohit Kumar          Email-ID: – rohitkumar1372@yahoo.in

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