8525 AQA GCSE 3.2.6 Data Structures

What is a record?

• A set of numbers grouped in an array

• A collection of arrays in a group

• A data structure that groups together related items

• A program designed to create an array

What is meant by 'declaring' an array?

• Create an array in a program, specifying its name and size

• creating a program, specifying its size

• create a program, specifying its name

• create an array to assign to a Selection process

Which value does the command 'list[3]' find?

• The fourth value of 'List'
• The third value of 'List'
• The second value of 'List'
• The fifth value of 'List'

scores = [5,7,0,10,8,3,7,3]

Which value will be found using the following statement:

print(scores[2])

• 5

• 7

• 0

• 10

Which iteration method is commonly used with arrays?

• ELSE

• WHILE

• IF

• FOR

What is the name given to a number that corresponds to the location of an item of data in an array?

• Initial

• Primary

• Index

• Identifier

Arrays have a fixed number of items.

True or False

• True

• False

Arrays can have different data types?

True or False?

• True

• False

Which type of array is the following example?

score = [5,7,0,10,8,3,7,3]

• 1D

• 2D

• 3D

• 4D

How may index numbers are used in accessing a 2D array?

• 1

• 2

• 3

• 4