Arrays and Files

An array is a data structure that contains several elements of the same data type

• True

• False

The position of each element is an array is identified using the arrays .......

• index

• Lower bound

• Upper bound

• Subscript

Which of the following is the correct way to declare a 1D array in pseudocode?

• DECLARE <Identifier> : ARRAY[LB:UB] OF <data type>

• DECLARE <Identifier> : ARRAY[LB:UB],[LB:UB] OF <data type>

• DECLARE <Identifier> : ARRAY[LB:UB]

• DECLARE <Identifier> : ARRAY OF <data type>

Which of the following is the correct way to declare a 2D array in pseudocode?

• DECLARE <Identifier> : ARRAY[LB:UB] OF <data type>

• DECLARE <Identifier> : ARRAY[LBR:UBR,LBC:UBC,] OF <data type>

• DECLARE <Identifier> : ARRAY[LB:UB]

• DECLARE <Identifier> : ARRAY OF <data type>

To find an item stored in an array, the array needs to be searched, which of the following is a method of searching an array

• Linear search

• Bubble sort

• Bubble search

• Merge search

2D arrays can be referred to as a table, with rows and columns.

• False

• True

Which of the following correctly assigns a value to a 1D array in pseudocode

• myArray[x] <-- 16

• myArray[x,y] <-- 16

• myArray x <-- 16

• myArray[x] = 16

Lists can be more useful if the items are sorted in a meaninful order. We can use a _________ sort to sort in ascending or descending order.

Which of the following is not a file mode

• Read

• Add

• Append

• Write

When a file is no longer being used it should be closed

• True

• False