101 Most Frequently Asked Interview Questions and Answers in C language

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101 Most Frequently Asked Interview Questions and Answers in C language

Objective of the post 101 Most Frequently Asked Interview Questions and Answers in C language is to provide beginners as well as professionals a ready reckoner of C language Questions.What are 101 Most Frequently Asked Interview Questions and Answers in C language? We have tried to enlist here 101 Most Frequently Asked Interview Questions and Answers in C language.

There may be more questions other than these. We will try to add them from time to time. We request readers of this post to suggest more latest questions of C language, which are popular in interviews. Readers can type questions in comments as well as can send them on our email id "techmangoes@gmail.com". We will try to put these questions in this list with your name.

  1.  How many bytes a long unsigned type variable  takes in memory in C Language ?
  2. Name any two storage classes of  C Language
  3. What is default storage class for a variable in C Language?
  4. What is the default value for an uninitialized variable in case of automatic storage class in C Language?
  5. What is the default value for an uninitialized variable in case of static storage class in C Language?
  6. What is the default value for an uninitialized variable in case of extern storage class in C Language?
  7. What is the default value for an uninitialized variable in case of register storage class in C Language?
  8. What is the scope of a variable in case of automatic storage class in C Language?
  9. What is the scope of a variable in case of static storage class in C Language?
  10. What is the scope of a variable in case of extern  storage class in C Language?
  11. What is the scope of a variable in case of register storage class in C Language?
  12. What is the keyword for declaring storage class as automatic in C Language?
  13. What is the keyword for declaring storage class as static in C Language?
  14. What is the keyword for declaring storage class as external in C Language?
  15. What is the keyword for declaring storage class as register in C Language?
  16. Who developed C Language?
  17. Name formatted Input Statement of C Language?
  18. Name any two unformatted Input statements of C Language?
  19. Name formatted Output Statement of C Language?
  20. Name any two unformatted Output statements of C Language?
  21. How many keywords are there in C Language?
  22. Name any five keywords of C Language?
  23. Name any two data types of C Language?
  24. Name the data type to declare a variable as integer type in C Language?
  25. Name the data type to declare a variable as char type in C Language?
  26. Name the data type to declare a variable as real/float  type in C Language?
  27. Name the data type to declare a variable as long integer type in C Language?
  28. Name the data type to declare a variable as unsigned integer type in C Language?
  29. Name the data type to declare a variable as double type in C Language?
  30. What is format string to read or write an integer value in C Language?
  31. What is format string to read or write a float value in C Language?
  32. What is format string to read or write a char value in C Language?
  33. What is format string to read or write an unsigned integer value in C Language?
  34. What is format string to read or write a double type value in C Language?
  35. What is format string to read or write a long integer value in C Language?
  36. What is the range of Integers In C Language?
  37. What is the range of char In C Language?
  38. What is the range of real or float In C Language?
  39. What is the range of Long Integers In C Language?
  40. What is the range of Double In C Language?
  41. What is the range of unsigned Integers In C Language?
  42. What is the range of unsigned char In C Language?
  43. What is the range of long unsigned Integers In C Language?
  44. C do not have which operator
  45. What are the ternary operators of C Language?
  46. What are the conditional operators of C Language?
  47. What are the relational operators of C Language?
  48. Which symbol is used for Bitwise AND in C LANGUAGE?
  49. Which symbol is used for Bitwise OR in C LANGUAGE?
  50. Which symbol is used for Bitwise Complement in C LANGUAGE?
  51. Which escape sequence is used for newline in C LANGUAGE
  52. Which escape sequence is used for TAB Space in C LANGUAGE
  53. Which symbol is used as statement terminator in C LANGUAGE
  54. What is the incrementation operator of C LANGUAGE
  55. What is the Decrementation operator of C LANGUAGE
  56. Which pre-processor directive is used to add a file in C program
  57. Name any one conditional statements of C LANGUAGE?
  58. Name any two loops of C LANGUAGE?
  59. Write syntax of If Else?
  60. Write syntax of For Loop
  61. Write syntax of Do While Loop?
  62. Write syntax of While Loop ?
  63. Name entry control loop of C Language?
  64. Name exit control loop of C Language?
  65. What is the other name of Arrays
  66. Which keyword is used for arrays in C Language?
  67. Which symbol is used to represent arrays in C Language?
  68. How arrays are stored in memory in C Language?
  69. Which type of function call itself
  70. Name any two string functions of C Language?
  71. Name any one mathematical function of C Language?
  72. Name the function for square root of a number in C Language?
  73. What are the pointer operators of C Language?
  74. Which input statement is used to read a multi word input C Language?
  75. Which output statement is used to read a multi word Output In C Language?
  76. What is pointer arithmetic ?
  77. Who developed C language?
  78. Define Variable?
  79. How many keywords are there in C language?
  80. What is the other name of reserve words in C language?
  81. Which keyword is used to declare an integer variable in C language ?
  82. Which keyword is used to declare a real / float variable in C language ?
  83. Which keyword is used to declare a character variable in C language ?
  84. Which keyword is used to declare an unsigned integer variable in C language ?
  85. Which keyword is used to declare a long integer variable in C language ?
  86. Which keyword is used to declare a double data type variable in C language ?
  87. Which keyword is used to declare an unsigned character  variable in C language ?
  88. What is the format string for integer variable in C Language?
  89. What is the format string for real / float variable in C Language?
  90. What is the format string for character variable in C Language?
  91. What is the format string for unsigned integer variable in C Language?
  92. What is the format string for double type variable in C Language?
  93. What is the format string for unsigned variable in C Language?
  94. How many bytes an integer type variable  takes in memory in C Language ?
  95. How many bytes an unsigned integer type variable  takes in memory in C Language ?
  96. How many bytes a long integer type variable  takes in memory in C Language ?
  97. How many bytes a float type variable  takes in memory in C Language?
  98. How many bytes a double type variable  takes in memory in C Language ?
  99. How many bytes a character type variable  takes in memory in C Language ?
  100. Which keyword is used to declare structures in C Language ?
  101. Which keyword is used to declare union in C Language 

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