Programming Recap

Question 1

What is a variable?

Answer 1

A named memory location to hold a single value​.

Question 2

What is sequence?

Answer 2

Writing/following code in the correct order to solve a problem​.

Question 3

What is iteration?

Answer 3

Repeating code for a set number of times or until a condition occurs​.

Question 4

What is selection?

Answer 4

Choosing which code to execute based on a condition​.

Question 5

What is an assignment?

Answer 5

Adding a value to a variable.

Question 6

What is a list?

Answer 6

A collection of data items with a single identifier​.

Question 7

What is a sub-routine?

Answer 7

Named, reusable sections of code, with or without parameters​.

Question 8

What are the three types of sub-routines?

Answer 8

• Procedures
• Methods
• Functions

Question 9

What are the differences between the three types of sub-routines?

Answer 9

• Procedures don’t return a value​
• Functions always return a value ​
• Methods are used in Object Oriented Programming​

Question 10

What is a file?

Answer 10

A way to store data between executions of a program. Can be read from or written to.​

Question 11

What are the 5 data types?

Answer 11

• String
• Real/float
• Integer
• Character
• Boolean

Question 12

What is the difference between an input and an output?

Answer 12

Output - Displays anything relevant to the screen using the print statement​

Input​- Requests data from the user​

Question 13

What type of statements is used for selection?

Answer 13

• IF
• SWITCH/CASE

Question 14

What types of statements are used for iteration?

Answer 14

• FOR
• WHILE
• DO UNTIL

Question 15

What is the difference between FOR and WHILE loops?

Answer 15

For loops​ are used when you know how many times you want to repeat the code​

While loops​ are used to repeat code until a condition occurs​