Network Components Interview Questions and Answers

Q1. Basics of C language.
Ans. C language is a procedural oriented language,rich In library, Feature of modularity,easy to extend, memory management language.
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Q2. What is input and output functions used in c language,..ect
Ans. 
Input and output functions in C language are used to interact with the user and the external environment.
• Input functions in C include scanf() for reading input from the user and getchar() for reading a single character.

• Output functions in C include printf() for displaying output to the user and putchar() for displaying a single character.

• File input and output functions in C include fopen(), fclose(), fread(), and fwrit
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Q3. What are header files,and use .?
Ans. 
Header files contain declarations of functions, variables, and constants used in a program.
• Header files are included in source code files using #include directive.

• They help in organizing code by separating declarations from implementation.

• Common header files in C/C++ include , , and .
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Q4. Datatypes in c language.
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Datatypes in C language include int, float, char, double, and more.
• Basic datatypes: int, float, char, double

• Derived datatypes: arrays, pointers, structures, unions

• Enumerated datatypes: enum

• Void datatype: void

• Example: int num = 10; char letter = 'A'; float value = 3.14;
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Ratio and propotanial, percentages, trignometry etc