Array Declaration and Definition
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Questions and Answers

What does an array consist of?

  • Ordered set of similar data items (correct)
  • Unordered set of dissimilar data items
  • Unordered set of similar data items
  • Ordered set of dissimilar data items

How are the elements of an array stored in memory?

  • In non-consecutive memory locations
  • In alternating memory locations
  • In consecutive memory locations (correct)
  • In random memory locations

When must an array be declared?

  • At the end of the program
  • Upon reaching the main function
  • After it is used
  • Before it is used (correct)

What does the size specified during array declaration inform the compiler to do?

<p>Allocate and reserve memory locations (B)</p> Signup and view all the answers

In an array, what is the range of indices?

<p>0 to (n-1) (D)</p> Signup and view all the answers

What is the syntax for declaring an array with 'n' elements?

<p>data_type array_name[n]; (B)</p> Signup and view all the answers

What happens if the number of values to be initialized is more than the size of the array in C language?

<p>Compilation error occurs (D)</p> Signup and view all the answers

In C, how are the memory locations initialized when a partial array initialization is done?

<p>All elements are set to zero automatically (A)</p> Signup and view all the answers

Which of the following will result in an automatic size determination of the array in C?

<p>int d[5]={10}; (B)</p> Signup and view all the answers

When an array is initialized with a string in C, why is the array size larger than the string length?

<p>Due to an extra null character added at the end of the string (B)</p> Signup and view all the answers

What error occurs if an attempt is made to initialize an array using 'char b="COMPUTER"' in C?

<p>'COMPUTER' exceeds maximum string length (C)</p> Signup and view all the answers

In C, what happens if no array size is specified during initialization?

<p>Array grows dynamically depending on initial values (A)</p> Signup and view all the answers

Which statement accurately describes runtime initialization for arrays in C?

<p>'scanf' is used to read user input and initialize arrays (C)</p> Signup and view all the answers

What is the outcome of initializing an integer array in C with more values than its specified size?

<p>'Excess elements are ignored' without warnings (C)</p> Signup and view all the answers

How does C handle an array initialization where fewer values are provided than its size?

<p>'Remaining elements automatically set to zero' (C)</p> Signup and view all the answers

What effect does adding a partial initialization have on the remaining uninitialized array elements in C?

<p>Remain uninitialized without a default value (B)</p> Signup and view all the answers

What happens when the number of values to be initialized is less than the size of the array in C language?

<p>The elements are initialized to zero automatically. (B)</p> Signup and view all the answers

When initializing an array in C with a string, why is the array size larger than the string length?

<p>Strings are null-terminated, so an extra byte is allocated for the null character. (D)</p> Signup and view all the answers

In C, what occurs when an attempt is made to initialize an array using char b='COMPUTER'?

<p>Compilation error due to incorrect single quotes usage. (A)</p> Signup and view all the answers

What effect does runtime initialization have on array elements in C?

<p>Array elements are filled with user-entered values at execution time. (D)</p> Signup and view all the answers

How does C handle an array initialization with fewer values provided than its specified size?

<p>Initializes the given values and sets the rest to zero by default. (C)</p> Signup and view all the answers

What error occurs with the declaration int a={9,2,4,5,6}; in C?

<p>Too many initial values provided for the array size. (D)</p> Signup and view all the answers

Which statement regarding partial array initialization in C is correct?

<p>'Partial array initialization initializes specific elements, leaving others untouched. (C)</p> Signup and view all the answers

'Initialization without size' in C refers to which scenario?

<p>'Declaring an array without specifying its number of elements.' (B)</p> Signup and view all the answers

'Initialization with all zeros' in C involves which process?

<p>'Setting all elements of the array to zero automatically.' (D)</p> Signup and view all the answers

In C, what determines the size of an array when initialized with fewer values than its capacity?

<p>The number of elements explicitly mentioned during declaration. (A)</p> Signup and view all the answers

What is the syntax to declare an array in C with 5 elements of type float?

<p>float array[5]; (C)</p> Signup and view all the answers

If an array 'numbers' in C has been declared as 'int numbers[10];', what is the range of indices for this array?

<p>0 to 9 (D)</p> Signup and view all the answers

During initialization, what happens if more values are provided than the size specified for an array in C?

<p>Values are truncated to fit the array size (A)</p> Signup and view all the answers

What does the statement 'int data[3] = {10, 20};' do in C?

<p>Initializes the array to {10, 20, 0} (C)</p> Signup and view all the answers

If an array 'marks' is declared as 'float marks[5];' in C, what values will be stored in the array before initialization?

<p>Garbage values (C)</p> Signup and view all the answers

What could be the consequence of initializing an array in C without specifying its size?

<p>'Declaration syntax error' at compile time (D)</p> Signup and view all the answers

If an array 'characters' is declared as 'char characters[4];' in C, how many characters can it hold at maximum considering a null terminator at the end?

<p>3 characters (D)</p> Signup and view all the answers

'int values[8];' is declared in C. What will be the state of all elements of 'values' before explicit initialization?

<p>'Random values' for all elements (B)</p> Signup and view all the answers

What does 'int scores[] = {95, 88, 75};' represent when initializing an array in C?

<p>'Scores' declared without size but with values assigned (B)</p> Signup and view all the answers

'float values[6];' is declared in C. How many bytes will be allocated to hold all elements of this array?

<p>'24 bytes' (D)</p> Signup and view all the answers

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