C Interview Questions
Questions Answers Views Company eMail

how to find a 5th bit is set in c program


4 10228

write a c program to check weather a particluar bit is set or not?


5 18516

program to get the remainder and quotant of given two numbers with out using % and / operators?

IBM, College School Exams Tests,

10 25181

can you explain in brief what is "r+" mode in a file... i know that it si used to read and modify rhe existing content.... but explalanation about the file pointer in "r+" mode i wann to know???????????


2 2333

What is the difference b/w main() in C language and main() in C++.

7 5323

what will happen if you free a pointer twice after allocating memory dynamically ?


3 8423

what is dangling pointer?

LG Soft,

1 3450

Can we write a program without main() function?

9 8473

What is the difference between null pointer and the void pointer?

3 5944

How many ways are there to swap two numbers without using temporary variable? Give the each logic.

9 13756

hat is a pointer?


4 2906

how will you write a program on linked lists using JAVA programming???????????

Keane India Ltd,

1 1584

The purpose of this exercise is to benchmark file writing and reading speed. This exercise is divided into two parts. a). Write a file character by character such that the total file size becomes approximately >10K. After writing close the file handler, open a new stream and read the file character by character. Record both times. Execute this exercise at least 4 times b). Create a buffer capable of storing 100 characters. Now after generating the characters, first store them in the buffer. Once the buffer is filled up, store all the elements in the file. Repeat the process until the total file size becomes approximately >10K.While reading read a while line, store it in buffer and once buffer gets filled up, display the whole buffer. Repeat the exercise at least 4 times with different size of buffer (50, 100, 150 …). Records the times. c). Do an analysis of the differences in times and submit it in class.


The OS is a program that uses various data structures. Like all programs in execution, you can determine the performance and other behavior of the OS by inspecting its state - the values stored in its data structures. In this part of the assignment, we study some aspects of the organization and behavior of a Linux system by observing values of kernel data structures exposed through the /proc virtual file system. The /proc virtual file system: Linux uses the /proc file system to collect information from kernel data structures. The /proc implementation provided with Linux can read many different kernel data structures. If you cd to /proc on a Linux machine, you will see a number of files and directories at that location. Files in this directory subtree each corresponds to some kernel data structure. The subdirectories with numeric names contain virtual files with information about the process whose process ID is the same as the directory name. Files in /proc can be read like ordinary ASCII files. You can open each file and read it using library routines such as fgets() or fscanf(). The proc (5) manual page explains the virtual files and their content available through the /proc file system. Requirements in detail: In this part, you are asked to write a program to report the behavior of the Linux kernel. Your program should run in two different versions. The default version should print the following values on stdout: • Processor type • Kernel version • The amount of memory configured into this computer • Amount of time since the system was last booted A second version of the program should run continuously and print lists of the following dynamic values (each value in the lists is the average over a specified interval): • The percentage of time the processor(s) spend in user mode, system mode, and the percentage of time the processor(s) are idle • The amount and percentage of available (or free) memory • The rate (number of sectors per second) of disk read/write in the system • The rate (number per second) of context switches in the kernel • The rate (number per second) of process creations in the system If your program (compiled executable) is called proc_parse, running it without any parameter should print out information required for the first version. Running it with two parameters "proc_parse " should print out information required for the second version. read_rate represents the time interval between two consecutive reads on the /proc file system. printout_rate indicates the time interval over which the average values should be calculated. Both read_rate and printout_rate are in seconds. For instance, proc_parse 2 60 should read kernel data structures once every two seconds. It should then print out averaged kernel statistics once a minute (average of 30 samples). The second version of your program doesn't need to terminate.



what is the syallabus of computer science students in group- 1?


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Un-Answered Questions { C }

write a program which the o/p should b in such a way that s triangle if I/p is 3,a Square/rectangle if I/P=4,a pentagon if I/P=5 and so on...forget about the I/P which is less than 3


What is pre-emptive data structure and explain it with example?


write a C program: To search a file any word which starts with ?a?. If the word following this ?a? starts with a vowel.Then replace this ?a? with ?a? with ?an?. redirect with the output onto an output file.The source file and destination file are specified by the user int the command line.




what are # pragma staments?


Simplify the program segment if X = B then C ← true else C ← false


how to introdu5ce my self in serco


show how link list can be used to repersent the following polynomial i) 5x+2


write a c program to find the sum of five entered numbers using an array named number


Write a C program to accept a matrix of any size. Find the frequency count of each element in the matrix and positions in which they appear in the matrix


Write the test cases for checking a variable having value in range -10.0 to +10.0?


Calculate 1*2*3*____*n using recursive function??


what is the difference between north western polytechnique university and your applied colleges?? please give ur answers for this. :)


Q.1 write a program to create binary tree 1 to 16 numbers? Q.2 write a program to creat a binary search tree for the member that is given by user?


Write a program that takes a 5 digit number and calculates 2 power that number and prints it(should not use big integers and exponential functions)