P2 Programming Fundamentals

Question 1

What is a variable

Answer 1

A location in memory used to store a value (can change)

Question 2

What is a constant

Answer 2

A location in memory used to store a value that cannot change

Question 3

When is == used

Answer 3

To compare values ( check is value is in a variable)

Question 4

When is = used

Answer 4

To set a value for a variable

Question 5

What are the Boolean operators

Answer 5

And or not true false

Question 6

What is a sequence

Answer 6

Lines of code are executed one after the other in the order they occur

Question 7

What is selection

Answer 7

A condition is used to decide whether code should be executed

Question 8

What is iteration

Answer 8

Code is executed repeatedly for a set number of times or while I condition is met

Question 9

What is mod or %

Answer 9

Remainder

Question 10

What is div or //

Answer 10

Whole number division

Question 11

What is the code for length

Answer 11

Len()

Question 12

What is the difference between + and ,

Answer 12

, leaves a space and + does not

Question 13

How to convert ascii to a number

Answer 13

Chr() - takes number returns letter
Ord() - takes letter returns number

Question 14

When using substrings what number does the string start at

Answer 14

0

Question 15

Is the second number in substrings inclusive

Answer 15

No

Question 16

How to code substings

Answer 16

Variable[1:4]

Question 17

How to make somthing upper case or lower case

Answer 17

Variable.upper()
Variable.lower()

Question 18

How to do random in python

Answer 18

Import random
Num = random.randint(0,100)

Question 19

How to select a specific value in a list

Answer 19

Variable[3]

Question 20

What is a 2d array

Answer 20

A collection of data of the same data type under one identifier, uses two index numbers, represented in a table

Question 21

What are the three parts of sql

Answer 21

Select from where