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C Language INTERVIEW QUESTION & ANSWERS

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101. How are the two dimensional array elements stored in memory?
  Two dimensional arrays follow row major order storage representation .The elements are stored in row by row in the subsequent memory locations.
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102. What is the value of sizeof (char)?
  The value returned by sizeof (char) is always 1 since char uses only one byte in any machine. For other data types, the number of bytes used to represent a data type depends on the implementation of a compiler.
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103. What is an operands?
  The operators can be defined as symbols which specify operations to be performed. The C language includes a number of operators. These operators are used in different combinations to form expressions. The data items on which the operators act upon are known as operands.
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104. What is the difference between switch and if else?
  The switch expression may be any integral type only but the condition in. if–else–if ladder may be designed with arithmetic, boolean or user defined data items.
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105. What are the types of looping structures?
 
    C provides three looping structures. They are
  • The While loop
  • The do while loop
  • The for loop
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