Quiz on Regular Expressions and NLP

What does the '|' character represent in a regular expression?

• Logical AND

• Logical OR

• Logical NOT

• Grouping

Which of the following is the correct regular expression to find one or two vowels containing only lowercase alphabets?

• [aeiou]

• [aeiou+]

• [^aeoiu]

• [aeiou]+

Which character in a regular expression is used to match any single digit?

• ?

• .

• *

• +

What does the regular expression '[A-Z]+' match?

• Matches one or more uppercase letters

• Matches zero or more uppercase letters

• Matches exactly one uppercase letter

• Does not match anything

What does the '+' character represent in a regular expression?

• Matches zero or one occurrence

• Matches zero or more occurrences

• Matches one or more occurrences

• Matches a specific number of occurrences

Which of the following is the correct regular expression to match all words starting with 'a' and ending with 'e'?

• ^a*e$

• ^a.*e$

• ^a.+e$

• ^a?e$

What does the regular expression '[0-9]{3}' match?

• Match three consecutive digits

• Match three digits in random order

• Match three non-digit characters

• Does not match anything

What does the regular expression 'a+' match?

• Matches one or more occurrences of the letter 'a'

• Matches zero or more occurrences of the letter 'a'

• Matches exactly one occurrence of the letter 'a'

• Matches any character except 'a'

One of the main challenge/s of NLP Is _________________

• Handling Tokenization

• Handling Ambiguity of Sentences

• Handling POS-Tagging

• All the above

What is full form of NLU?

• Nature Language Understanding

• Natural Long Understanding

• Natural Language Understanding