Quiz2

What does the regex pattern `[a-zA-Z]{3,}` match?

• Exactly 3 letters

• At least 3 letters (only lowercase)

• At least 3 letters (both cases)

• Exactly 3 uppercase letters

Which regex pattern matches a valid 10-digit mobile number at the end of a sentence?

• '\d{10}$'

• '\d{10}'

• `^\d{10}`

• `\d{10}\b

What will `re.findall(r'[+*/-]|\w+', '12 15+3 100-*')` return?

• ['12', '15', '+', '3', '100', '-', '*']

• ['12', '+', '3', '*']

• ['+', '-', '*']

• ['12', '15+3', '100-*']

What does the regex pattern `(\w+) \1` do?

• Matches two different words

• Matches the same word repeated

• Matches any character

• Throws an error

What does `re.sub(r'(\w+) \1', r'\1', 'go go gone')` return?

• 'go gone'

• 'gone'

• 'go go gone'

• 'go gone gone'

What does `re.I` flag do?

• Enables indentation

• Ignores whitespace

• Enables case-insensitive matching

• Enables multi-line matching

How do you match a literal dash `-` in a character class?

• Put it at the start or end like `[-abc]`

• . Escape it like `[a\-c]`

• Both A and B

• You can't match dash using character class

What does `re.search()` return when a match is found?

• Match object

• True

• Group object

• Full string

What does `re.fullmatch(r'\d+', '123abc')` return?

• Match object

• None

• Error

• '123'

What does `^a.*b$` match?

• Any string containing 'a' and 'b'

• String starting with a and ending with b

• Only 'ab'

• All lowercase letters