History of C Programming Language

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What is the significance of ANSI C standard?

It limits the capabilities of C to system software only.

It defines the grammar and core libraries for the C language. (correct)

It introduces a whole new programming language.

It focuses on high-level constructs only.

Which organization is responsible for the establishment of the ANSI C standard?

American National Standards Institute (ANSI) (correct)

Kernighan and Ritchie

C9X committee

International Standards Organization (ISO)

What does the preprocessor section in a C program primarily contain?

Main function

User-defined functions

Header files (correct)

Global declarations

Why is C considered a highly portable language?

Code written on one machine can easily run on a different machine. Signup and view all the answers

Which section of a C program includes the declaration of global variables?

Global declaration section Signup and view all the answers

Who proposed the C language at Bell Laboratories in 1972?

Dennis Ritchie Signup and view all the answers

Which book, published in 1978, was the first book on C programming?

The C Programming Language Signup and view all the answers

What was the primary goal of the committee established by ANSI in 1983 regarding the C language?

To produce a machine independent definition of C Signup and view all the answers

Which operating system is most frequently associated with the C programming language?

UNIX Signup and view all the answers

Why was UNIX considered one of the first portable operating systems?

Because C language is not tied to any specific hardware architecture Signup and view all the answers

Where are local declarations made?

Within the main function Signup and view all the answers

Which section of a program contains if, else, while, and for statements?

Statements Signup and view all the answers

What does the return function do?

Ends the execution of the function Signup and view all the answers

Which file is created by the C compiler after checking for errors in a program file?

.obj file Signup and view all the answers

What is the role of the Linker in program execution?

Links object files to library functions Signup and view all the answers

What is the purpose of the 'ceil' function in C math?

Rounds up the given number Signup and view all the answers

What is the role of identifiers in C programming?

Name variables and program elements Signup and view all the answers

Which data type is commonly used to store whole numbers in C programs?

int Signup and view all the answers

What should be avoided when naming variables in C programming?

Starting the identifier with a digit Signup and view all the answers

Which keyword has a predefined meaning in C language and should not be used as an identifier?

return Signup and view all the answers

Which type of variable retains its value between multiple function calls?

Static variable Signup and view all the answers

What is the scope of automatic variables in C?

Limited to the block in which they are defined Signup and view all the answers

Which storage class in C allocates memory automatically at runtime?

Automatic Signup and view all the answers

What is the range of an unsigned char data type in C?

0 to 255 Signup and view all the answers

Which type of data type is used to store a set of data values in C?

Derived Data Types Signup and view all the answers

What is the default initialization value for static variables in C?

Zero Signup and view all the answers

How are external variables declared in C to be shared across multiple source files?

By declaring them as global variables Signup and view all the answers

What is the purpose of the 'typedef' keyword in C?

Create user-defined data type names Signup and view all the answers

Which suffix indicates a 'float' constant in C?

'f' Signup and view all the answers

What is the purpose of an Enumeration constant in C?

Associate constant integer values with names Signup and view all the answers

What will be printed when the first code snippet is executed?

garbage garbage garbage Signup and view all the answers

Which statement about static variables is FALSE?

All static variables have global visibility. Signup and view all the answers

In the second code snippet, what will be the output of the code?

0 0 0.000000(null) Signup and view all the answers

Which of the following is NOT true regarding register variables?

Static variables can be stored in the CPU register. Signup and view all the answers

What does the 'extern' storage class indicate in C programming?

'extern' variables are declared with an external linkage elsewhere in the program. Signup and view all the answers

Which type of variable has the fastest access time compared to others?

'register' variables Signup and view all the answers

What happens if an external variable is declared multiple times?

The last declaration is used for linking. Signup and view all the answers