53. Programming 2 : Data Structures & Arrays

What is a data structure?

• A type of software

• A programming language

• A computer hardware component

• A specialized format for organizing and storing data

Which of the following is NOT a basic data structure?

• Integers

• Graphs

• Lists

• Arrays

What is an array?

• A type of loop

• A variable that can contain more than one data item

• A single piece of data

• A function in programming

How are arrays indexed?

• Randomly

• Starting at 1

• Alphabetically

• Starting at 0

What is the difference between lists and arrays in Python?

• Lists are contiguous, but arrays are not

• Arrays are only used in Python 2

• There is no difference

• Arrays are contiguous, but lists are not

What does it mean when an array is described as 'static'?

• It can change size

• It can only hold string data types

• It moves around in memory

• It cannot change size once set up

How can you access 'Austria' from an array of countries?

• Using index 0

• Using index 1

• Using index 2

• Using index 3

What is a two-dimensional array visualized as?

• A graph

• A cube

• A table

• A line

How would you access an item in a three-dimensional array?

• Using one index

• Using two indexes

• Using four indexes

• Using three indexes

What is a correct way to visualize a four-dimensional array?

• As a set of cubes

• As a set of tables

• As a set of lines

• As a single point