01. Perform Operations using Data Types and Operators 2

Question 1

Why would you use whitespace in python?

Answer 1

1. Python uses whitespace to create blocks of code.
2. In other words, it uses whitespace for code suites

Question 2

Refer to the code below. What is this an example of?

import math as fun

Answer 2

This is an example of using a separate aliased namespace for “math” module

Question 3

Refer to the code below. Why would you import selectively?

from math import pi, tan

Answer 3

It allows you to directly using the functions without the need to add the prefix, i.e. math.pi

Question 4

What action should be avoided so that you do not mistakenly overwrite names that you have already defined?

a: Use aliases when importing
b: use the wildcard import
c: Import selective objects
d: Import selectively with aliases

Answer 4

b: use the wildcard import

Question 5

In what format does the input function read in user input?

a: String
b: Object
c: Boolean
d: Array

Answer 5

a: String

Question 6

By default, how many spaces are code suites indented when using the Python IDLE?

a: 5
b: 3
c: 4
d: 2

Answer 6

c: 4

Question 7

When using the Python shell and a code block, what triggers the interpreter to begin evaluating the block of code?

a: The execute command
b: The semi-colon symbol
c: The closed parenthesis
d: A blank line

Answer 7

d: A blank line

Question 8

What command is used to output text from both the Python shell and within a Python module?

a: count()
b: OutputStream()
c: print()
d: System.out.println()

Answer 8

c: print()

Question 9

What data type is now represented by int in Python 3

a: Decimal

b; Float

c: Long
d: Short

Answer 9

c: Long

Question 10

Which of the following will not result in declaring x a data type of float?

a: x = int(y)
b: x = float(10)
c: float.fromhex(“A”)

x = 5.

Answer 10

a: x = int(y)

Question 11

Which statement accurately describe the bool class?

a: Boolean Not returns False if the operand is True
b: Boolean Or returns the first False or the last True value
c: Zero values are considered True
d: The bool class is a subclass of the array class

Answer 11

a: Boolean Not returns False if the operand is True

Question 12

What type of class can be used to create special numbers, such as infinity?

Answer 12

The float class

Question 13

Which statement will correctly assign x as an infinite number?

a: x = infinity
b: x = int(‘inf)
c: pos_infinity
d: float(‘inf)

Answer 13

d: float(‘inf)

Question 14

Continue from Sequence types

Answer 14

Continue from Sequence types