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C Interview Questions
Questions Answers Views Company eMail

What are Storage Classes in C ?

CTS, HP, IBM, Maharaja Whiteline, Tamil Nadu Open University TNOU, TATA, TCS, Wipro,

32 102604

How the processor registers can be used in C ?

HP,

7 12814

What is an volatile variable?

HP,

15 29441

How to access or modify the const variable in c ?

HCL, HP,

16 29994

What is structure padding ?

HP,

3 27460

What is structure packing ?

HP,

2 12013

How to implement call back functions ?

HP,

3 7857

What is an anonymous union and where to apply that ?

HP,

3 7981

How to implement variable argument functions ?

HP,

1 7123

What are advantages and disadvantages of recursive calling ?

College School Exams Tests, Evolving Systems, HP, Jyoti Ltd, Sage, Wipro,

12 91645

How the C program can be compiled?

HP,

11 15427

What are the preprocessors?

HP,

8 12065

what are the various memory handling mechanisms in C ?

HP,

4 9237

what is a function pointer and how all to declare ,define and implement it ???

Honeywell,

4 8821

Give a fast way to multiply a number by 7

Accenture, Aricent, Microsoft,

15 41335


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Un-Answered Questions { C }

Explain about C function prototype?

172


What is the heap?

178


Explain union.

158


typedef struct{ char *; nodeptr next; } * nodeptr ; What does nodeptr stand for?

213


What is the use of pragma in embedded c?

143






What is the description for syntax errors?

161


How do you define CONSTANT in C?

195


What are pointers in C? Give an example where to illustrate their significance.

217


What is typeof in c?

146


Why do some versions of toupper act strangely if given an upper-case letter?

163


Can we assign integer value to char in c?

142


What is an example of enumeration?

150


In cryptography, you could often break the algorithm if you know what was the original (plain) text that was encoded into the current ciphertext. This is called the plain text attack. In this simple problem, we illustrate the plain text attack on a simple substitution cipher encryption, where you know each letter has been substituted with a different letter from the alphabet but you don’t know what that letter is. You are given the cipherText as the input string to the function getwordSets(). You know that a plain text "AMMUNITION" occurs somewhere in this cipher text. Now, you have to find out which sets of characters corresponds to the encrypted form of the "AMMUNITION". You can assume that the encryption follows simple substitution only. [Hint: You could use the pattern in the "AMMUNITION" like MM occurring twice together to identify this]

1497


what is reason of your company position's in india no. 1.

1341


What is the use of header files?

137