C Programming Interview Questions and Answers For Engineers

Function Programming In C -Job Interview Frequently Asked Question.What is short-circuiting in C expressions.How to declare a pointer to a function.access other function which is outside of the scope of program.Function vprintf() uses the functionality of which header file.What does the error, invalid redeclaration of a function mean.Recursive functions are executed in which order.kernel operating system cpu ALU.

Variable Function Structure Pointer in C
Programming - C Viva Questions
Function in Embedded C

It is necessary to initialized the array at the time of deceleration.Which of the following is the correct way to access the last element of the array arr.What is the output of the program.What is the value of i in the following code.Expression Syntax.Compile time error.Run time error.System.Error : invalid pointer arithmetic.

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Strings In C Programming Interview Exam Questions Answers For Engineering Graduates.First pointer initialization with string and other array initialization with string.What would be the output of the following program.Would the following code give any error on compilation.How can I print a '%' character in a printf format string.String operation such as strcmp(s, t), strcat(s, t), strcpy(s, t) and strlen(s) heavily rely.which functions would get called.

Syntax error is produced.Identify the trigraph sequence for ^.Difference between compilation and execution time.Compilation time.Difference between GST and IST.Volatile is meaningless for the variable since k is loop variant.Study the following statement.What would be the output if the following program (myprog.c) is run using the following command line.After a library function returns a failure, which of the following will print out the appropriate error message corresponding to error number given by errno.Which of the following preprocessor directive will make the system- dependent constant INT_MAX available for ANSI C compiler.

What type of structure is created by the following definition?.A bit field is.Union differs from structure in the following way.Identify the wrong syntax.The changes made in the members of a structure are available in the calling function.About structure which of the following is true.What is the output of the following program?

What will be the output of the following program.what is the original(or highest level)directory on a disk.Type the name of the single dot that represents the smallest graphic unit that can be displayed on the screen?Single machine instruction required for p++.Which header file is essential for using strcmp() function.What is the correct and fully portable way to obtain the most significant byte of an unsigned integer x.Which is executed quickly.

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Automatic storage class.The duration for which the variable retains a given value during the execution of a program.Which is not a storage class?Which of the following statement are correct?Code reports an error as undefined symbol gotorc.Where will the space be allocated for an automatic storage class variable

Smallest element of array's index is called.what is the maximum number of dimensions an array in C may have.Array passed as an argument to a function is interpreted as.Which of the following is the correct way of declaring a float pointer.The size of a structure can be determined.size of variable name.fputs function is used to.What are the types of linkages.The size of a structure can be determined by.In mathematics and computer programming, which is the correct order of mathematical operators

For a typical program, the input is taken using.What is the default return-type of getchar().The value of EOF is.What is the use of getchar().What is the use of putchar().The size of string variable is.By default a real number is treated as a.Is the following statement a declaration or definition.Which of

Embedded C Programming Twenty Interview Questions Basics Viva Tutorials.The choices file options and so are called.The maximum length of a variable in c is.Queue can be used to implement.While coding in c programming for "call by reference" we pass.Array index always start from.In c programming a function can return.Compile time error

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1.) If every node u in G is adjacent to every other node v in G, A graph is said to be a.) isolated b.) complete c.) finite d.) strongly connected ANSWER: b.) complete 2.) In a Heap treea.) Values in a node is greater than every value in left sub tree and smaller than right sub tree b.)

What are the functional requirements that are used in the embedded systems.Why is Model transformations used in the embedded system.What is interaction semantics used in embedded systems.What are the different types of system involved in embedded system.What are the different types of Buses used by the embedded systems.What is the main function of Multiplexed Address/Data Bus.How does Input/Output bus functions.What is the function of simple thread poll in embedded system.Why is it better to use multi-threading polling then single threading model.

Differentiate between mutexes vs semaphores.What are the commonly found errors in Embedded Systems.What is the need for having multi byte data input and output buffers in case of device ports.What is the difference between Hardware design and Software Design.What are the differences between Analytical and computational modeling

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The mutex is a significantly safer mechanism to use for implementing mutual exclusion around shared resources. There are still a couple of problems that use of the Non-cooperationThe Monitor Mutex (in preference to Semaphore) will not solve.

To address the problems associated with semaphore, a new concept was developed during the late 1980's.The major use of the term mutex appears to have been driven through the development of the common programming specification for UNIX based systems. In 1990 this was formalized by the IEEE as standard IEEE Std 1003.1 commonly known as POSIX.

At a later point the first task is rescheduled and calls V(S) to indicate it has left the critical region. The second task will now be allowed access to the critical region.A variant of Dijkstra's semaphore was put forward by another Dutchman, Dr. Carel S. Scholten.

Embedded programming is for the computer programming that is in and operates the great many computer-controlled devices that surround us in our homes, cars, workplaces and communities. As a rule,it may be said micro controller programming is embedded programming, but not all embedded programming is micro controller programming.

Used to create logic circuits with memory (i.e.

A.Moore machine -Associates its outputs with states -The outputs are represented either within the vertex corresponding to a state or adjacent to the vertex B.Mealy machine: -Associates its outputs with the transitions -In addition to the input values, each arc also shows the output values generated during the transition; the format of the label of each arc is Inputs/Outputs.

Events: -Wake up at fixed time every day -Weekends: you don't need alarm, so you wake up, turn off the alarm and resume sleep*FSM modelling this chain of events, with: *Weekday (determines you how to react to alarm)-Outputs: *Similar to the truth table *Doesn't contain the system clock when specifying