Session3L2Quiz

In Python, a variable must be declared before it is assigned a value:

• True

• False

In Python, a variable may be assigned a value of one type, and then later assigned a value of a different type:

• True

• False

Which of the following are valid Python variable names:

• home_address

• route66

• 4square

  
  

• ver1.3

• Age

You are reading Python code, and these statements appear scattered in different locations throughout the code:

• These statements refer to the same variable.

• These statements refer to different variables.

Which of the following statements assigns the value 100 to the variable x in Python:

• x == 100

• x = 100

• x != 100

• x << 100

What is the output of this code:

var = ["Mohamed","Hany"]

print(var[0][3])

• Error

• a

• Mohamed

• h

• m

Which of the following are Python reserved words (keywords):

• goto

• and

• None

• default

• class

Answer explanation

What is the output of this code:

var = { "name" : "Hany" , "age" : 26}

print(var[0])

• "name"

• "Hany"

• Error

• "name" : "Hany"

what is the data type of var in this statement:

var = True

• bool

• string

• int

• float

what is the data type of var in this statement:

var = 10

• bool

• string

• int

• float