Machine Learning Random Forest with Python from Scratch - Strings
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Information Technology (IT), Architecture
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University
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Practice Problem
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct order of operations according to the DMAS rule?
Multiplication, Division, Addition, Subtraction
Division, Multiplication, Addition, Subtraction
Addition, Subtraction, Multiplication, Division
Subtraction, Addition, Division, Multiplication
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In Python, what is a string primarily used for?
Executing system commands
Storing binary data
Representing text
Performing mathematical calculations
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you concatenate two strings in Python?
Using the division (/) operator
Using the asterisk (*) operator
Using the plus (+) operator
Using the minus (-) operator
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of concatenating 'Hello' and 'World' with a space in between?
HelloWorld
Hello World
Hello-World
Hello, World
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does string slicing allow you to do?
Reverse a string
Delete a string
Extract a portion of a string
Change the content of a string
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a string is 'Hello World', what will be the result of slicing from index 0 to 5?
ello
Hello
World
Hello
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can't you change a character in a string directly in Python?
Strings are only for numbers
Python does not support character replacement
Strings are immutable
Strings are mutable
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