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W14: CP08 Quiz (BECC0302)

Quiz by Bryan N. Manalaotao

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15 questions
Show answers
  • Q1
    What is an array in C++?
    A fixed-size sequential collection of elements of the same type
    A collection of functions
    A data structure that stores values in a non-sequential manner
    A single variable that can store multiple values of different types
    30s
  • Q2
    How are elements in an array accessed?
    By their position within parentheses
    By their index within square brackets
    Using a special keyword
    By using the dot operator
    30s
  • Q3
    Which of the following correctly declares a 10-element array of doubles named balance?
    double[10] balance;
    array<double, 10> balance;
    double balance = new double[10];
    double balance[10];
    30s
  • Q4
    How can you initialize an array during its declaration?
    int array[5] = 1, 2, 3, 4, 5;
    int array[5] = {1, 2, 3, 4, 5};
    int array[5] 1, 2, 3, 4, 5
    int array {1, 2, 3, 4, 5};
    30s
  • Q5
    What happens if you omit the size of the array during initialization?
    The array size is determined by the number of initial values
    The array will not be created
    The array size defaults to 10
    An error occurs during compilation
    30s
  • Q6
    Which statement correctly accesses the fifth element of the array balance in the course packet example?
    balance[5];
    balance[4];
    balance(4);
    balance(5);
    30s
  • Q7
    What does the following code do? double balance[5] = {1000.0, 2.0, 3.4, 17.0, 50.0}; balance[4] = 50.0;
    Reinitializes the fourth element to 50.0
    Assigns 50.0 to the sixth element
    Assigns 50.0 to the fifth element, which is already 50.0
    Initializes the fifth element to 50.0
    30s
  • Q8
    What function is used to format output in the given example?
    printf()
    format()
    setw()
    setprecision()
    30s
  • Q9
    Which of the following is true about multidimensional arrays in C++?
    The simplest form of a multidimensional array is a two-dimensional array
    The simplest form of a multidimensional array is a three-dimensional array
    C++ does not support multidimensional arrays
    Multidimensional arrays must have the same number of elements in each dimension
    30s
  • Q10
    How can you generate a pointer to the first element of an array?
    By specifying the array name with the first index
    By specifying the array name without any index
    By using the * operator
    By using the & operator
    30s
  • Q11
    How can you pass an array to a function?
    By using the * operator
    By passing the array's name without an index
    By using the & operator
    By passing each element of the array individually
    30s
  • Q12
    Can a C++ function return an array?
    Yes, but only single-dimensional arrays
    Yes, but the array size must be specified
    Yes, C++ allows a function to return an array
    No, C++ functions cannot return arrays
    30s
  • Q13
    What is the purpose of the setw function in the provided code example?
    To set the precision of floating-point numbers
    To set the alignment of the output text
    To set the width of the output field
    To set the width of the input field
    30s
  • Q14
    Which function is used to format the output of array elements in the given example?
    format()
    printf()
    setw()
    setprecision()
    30s
  • Q15

    What is the index of the first element in a C++ array?

    -1

    1

    It depends on the array type

    ( 0 )

    30s

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