Lots of question repeatedly appear in C programing interview. Top FAQ questions with their answers are given here.
1.What Is Micro Substitution?
Ans: The #define directive is the most common processor directive ,which tell the Preprocessor to replace every occurrence of a particular character string... Readmore
2.What Is Function Pointer?
Ans: Function pointer is a variable(a pointer) that holds the address of a another function. function pointer is a pointer variable,.... Readmore
3.What Is Callback Functions in C?
Ans: The simple answer to this first question is
that a callback function is a function that is called through a function
pointer. If you pass the pointer (address) Readmore
4.Far Pointer in C Programming?
Ans: The pointer which can point or access whole
the residence memory of RAM i.e. which can access all 16 segments is known as
far pointer... Readmore
5.What Is Structure Padding?
Ans: Structure padding is done to do memory
alignment.As size of pointer is 4 bytes,If everything is organized by multiple
of 4 that it will be easier and faster to calculate the address and
processing them. ... Readmore
6.Write a Program to Swap Two Numbers Without Using Third Variable?
Ans:
Program to swap two numbers without
using Third Variable .Here we are using two variable of int type .. Readmore
7.What Is Dangling Pointer?
Ans: A pointer pointing to a dead location than
it is called dangling pointer. When ever a function returning an integer than
specified return type as... Readmore
8.What Is Near Pointer?
Ans: That is near pointer cannot access beyond
the data segment like graphics video memory, text video memory etc. Readmore
9.What Is null Pointer in C Language?
Ans: It is always a good practice to assign a
NULL value to a pointer variable in case you do not have exact address to be
assigned. Readmore
10.What Is Wild Pointer?
Ans: A pointer in C which has not been
initialized is known as wild pointer... Readmore
11.What Is pointer?
Ans: A pointer is a derive data type in C which
is built from fundamental data type in c a pointer is a variable which stores
always an address of another variable .. Readmore
Ans: The Pointer which can pointer total 16
segment of memory is called Huge pointer.the
size of the huge pointer is 4 bytes ie 32 bits... Readmore
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