46. Programming 1 : Variables & Constants

What is a variable in programming?

• A type of operator

• A Python-specific data type

• A fixed value that does not change

• A pointer to a memory address with a user-friendly label

What analogy is used to explain variables?

• Registers in the central processor

• Arithmetic operations

• A type of constant

• Data types in Python

What does the 'memory address register' contain?

• A Python program

• A constant value

• The address of an instruction or data to be fetched or written to memory

• The highest value of a dice game

How does Python handle data types for variables?

• Requires explicit declaration

• Only uses string data types

• Based on the value initially given to it

• Does not support data types

What is a constant in programming?

• A value that changes during program execution

• A Python-specific operator

• A value which remains fixed and does not change while the program is running

• A variable that stores integers only

How is assignment performed in Python?

• With the equal symbol

• By declaring a variable as constant

• Using the plus symbol

• With a specific assignment function

What is the purpose of operators in Python?

• To convert data types

• To perform operations on variables and constants

• To assign a value to a constant

• To declare a variable as a constant

What does casting do in Python?

• Performs arithmetic operations

• Converts a value from one data type to another

• Changes the value of a variable

• Assigns a new value to a constant

What is the result of rolling a five and a seven in the dice game?

• 12

• 35

• 57

• 75

Why are constants advantageous over variables?

• They require explicit declaration in Python

• They make a program easier to read and lead to less chance of errors

• They make a program run more slowly

• They change values during program execution