Regular Expressions [Part 3] - Character Sets & Quantifiers

Regular Expressions [Part 3] - Character Sets & Quantifiers

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial provides a comprehensive guide to regular expressions, covering meta characters, character sets using brackets, case sensitivity, ranges, quantifiers, grouping, and shorthand character classes. It explains how to use these elements to create effective regular expressions for various use cases, ensuring clarity and ease of reference.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which meta character is used to indicate the start of a string in regular expressions?

.

^

*

$

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the character set [A&E] signify in a regular expression?

Matches any character except A or E

Matches any character

Matches both A and E

Matches either A or E

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you make a character set case insensitive?

Use the dot (.)

Use a caret (^) inside the brackets

Use a dollar sign ($)

Add a case insensitive flag

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the character set [^GF] mean?

Matches only G and F

Matches any character except G or F

Matches any uppercase letter

Matches G or F

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following matches any uppercase letter?

[0-9]

[a-z]

[^A-Z]

[A-Z]

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the quantifier {2} specify in a regular expression?

At most 2 occurrences

Between 2 and 4 occurrences

Exactly 2 occurrences

At least 2 occurrences

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How would you specify a range of 2 to 4 occurrences using quantifiers?

{2,4}

{2;4}

{2:4}

{2-4}

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