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C LANGUAGE INTERVIEW QUESTIONS ANSWERS PDF

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Top C Programming Interview Questions & Answers. last updated March 19, /13 . In C programming, source codes are saved with the file extension.C, while object codes are saved with the file .. Download PDF · Facebook Twitter. Most Common C Programming Interview Questions and Answers. The above- mentioned C Interview Questions are based on the C. C Interview Questions and Answers for Freshers or Experienced Pdf. These C programming language was developed at Bell Laboratories in by Dennis.


C Language Interview Questions Answers Pdf

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C language allows the use of the prefix register in primitive variable declarations. Such variables are called Read Top C programming interview questions and answers. Download C programming interview questions PDF. Learning C Language is the first important step that a science student take in the journey of their education. C language comprises of several. C language tricky pointers questions answers explanation objective mcq faq interview freshers beginners prime numbers factorial PDF examples.

What is Next ?

Ans A statement that allows executing statement or group of statements in repeated way is defined as a loop. Following diagram explains.

Ans A loop running within another loop is referred as a nested loop. The first loop is called Outer loop and inside the loop is called Inner loop. Inner loop executes the number of times define an outer loop. Q 18 What is the general form of function in C?

C programming Interview questions and answers

Q 19 What is a pointer on a pointer in C programming language? Ans A pointer variable that contains the address of another pointer variable is called pointer on a pointer. This concept de-refers twice to point to the data held by a pointer variable. Ans The purpose of the Break keyword is to bring the control out of the code block which is executing. It can appear only in Looping or switch statements. If not found then in the built in the include path.

Ans In general programs store data into files and retrieve existing data from files. With the sequential access file such data saved in a sequential pattern.

When retrieving data from such files each data need to read one by one until required information find. Q 23 What is the method to save data in stack data structure type? Only top of the stack is accessible at a given instance.

Q 24 What is the significance of C program algorithms?

Ans The algorithm needs to create first and it contains step by step guidelines on how the solution should create. Q 25 What is the correct code to have following output in C using nested for loop?

Q 26 Explain the use of function toupper with and example code? Ans Toupper function is use to convert the value to uppercase when it uses with characters.

Ans Yes, it is working without any error. Some programmers like to use this to organize the code. But the main purpose of curly brackets is to group several lines of codes. Ans Modifier is a prefix to the basic data type which is used to indicate the modification for storage space allocation to a variable.

Example— In bit processor storage space for int data type is 4. When we use it with modifier the storage space change as follows.

Q 31 What are the modifiers available in C programming language?

Ans There are 5 modifiers available in C programming language as follows. Q 32 What is the process to generate random numbers in C programming language? Ans The command rand is available to use for this purpose. The function returns any integer number beginning from zero 0. Following sample code demonstrate the use of rand.

Q 33 Describe newline escape sequence with a sample program? This indicates the point that new line need to start to the compiler and the output creates accordingly. Following sample program demonstrate the use of newline escape sequence.

Q 34 Is that possible to store in an int data type variable? Ans Int data type only capable of storing values between — to To store a modifier needs to use with int data type. Long Int can use and also if there is no any negative values unsigned int is also possible to use. Q 35 Is there any possibility to create customized header file with C programming language?

Ans It is possible and easy to create a new header file. Create a file with function prototypes that needs to use inside the program. Q 36 Describe dynamic data structure in C programming language? Ans Dynamic data structure is more efficient to the memory. The memory access occurs as needed by the program. Q 37 Is that possible to add pointers to each other?

Ans There is no possibility to add pointers together. It is used to assign a value to a given variable. The modulus operator outputs the remainder of a division.

A nested loop is a loop that runs within another loop. Put it in another sense, you have an inner loop that is inside an outer loop. In this scenario, the inner loop is performed a number of times as specified by the outer loop. For each turn on the outer loop, the inner loop is first performed.

Compilers and interpreters often deal with how program codes are executed. Interpreters execute program codes one line at a time, while compilers take the program as a whole and convert it into object code, before executing it.

The key difference here is that in the case of interpreters, a program may encounter syntax errors in the middle of execution, and will stop from there. On the other hand, compilers check the syntax of the entire program and will only proceed to execution when no syntax errors are found.

The char keyword can only hold 1 character value at a time. By creating an array of characters, you can store string values in it. While curly brackets are mainly used to group several lines of codes, it will still work without error if you used it for a single line. Some programmers prefer this method as a way of organizing codes to make it look clearer, especially in conditional statements. Header files are also known as library files.

They contain two essential things: the definitions and prototypes of functions being used in a program. Simply put, commands that you use in C programming are actually functions that are defined from within each header files. Each header file contains a set of functions. For example: stdio. Syntax errors are associated with mistakes in the use of a programming language.

It maybe a command that was misspelled or a command that must was entered in lowercase mode but was instead entered with an upper case character. A misplaced symbol, or lack of symbol, somewhere within a line of code can also lead to syntax error. Variables and constants may at first look similar in a sense that both are identifiers made up of one character or more characters letters, numbers and a few allowable symbols.

Both will also hold a particular value. Constants are given values at one time only, placed at the beginning of a program.

This value is not altered in the program. For example, you can assigned a constant named PI and give it a value 3. Arrays contain a number of elements, depending on the size you gave it during variable declaration.

C Programming Interview Questions

Each element is assigned a number from 0 to number of elements To assign or retrieve the value of a particular element, refer to the element number.With arrays, only 1 name is used, the rest are accessible through the index name grade[0], grade[1], grade[2]… grade[9].

What is the maximum length of an identifier? Define a structure. Garbage value.

A pointer which is not allowed to be altered to hold another address after it is holding one. Ans The mistakes when creating a program called syntax errors. In the C, each function has an address in a code segment. Explain continue keyword in C.

When loading, the compiler places the string along with other constants in the read-only segment of the memory.

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