Multiple Choice Quiz

Last updated on 2023-05-03 | Edit this page

Overview

Questions

  • How do you find and match strings with regular expressions?

Objectives

  • Test knowledge of use of regular expressions.

Multiple Choice Quiz

This multiple choice quiz is designed to embed the regex knowledge you learned during this module. We recommend you work through it sometime after class (within a week or so).

Challenge

Q1. What is the special character that matches zero or more characters?

    1. ^
    1. #
    1. *

C

Challenge

Q2. Which of the following matches any space, tab, or newline?

    1. \s
    1. \b
    1. $

A

Challenge

Q3. How do you match the string Confident appearing at the beginning of a line?

    1. $Confident
    1. ^Confident
    1. #Confident

B

Challenge

Q4. How do you match the word Confidential appearing at the beginning of a line?

    1. ^Confidential\d
    1. ^Confidential\b
    1. ^Confidential\w

B

Challenge

Q5. What does the regular expression [a-z] match?

    1. The characters a and z only
    1. All characters between the ranges a to z and A to Z
    1. All characters between the range a to z

C

Challenge

Q6. Which of these will match the strings revolution, revolutionary, and revolutionaries?

    1. revolution[a-z]?
    1. revolution[a-z]*
    1. revolution[a-z]+

B

Challenge

Q7. Which of these will match the strings revolution, Revolution, and their plural variants only?

    1. [rR]evolution[s]+
    1. revolution[s]?
    1. [rR]evolution[s]?

C

Challenge

Q8. What regular expression matches the strings dog or cat?

    1. dog|cat
    1. dog,cat
    1. dog | cat

A

Challenge

Q9. What regular expression matches the whole words dog or cat?

    1. \bdog|cat\b
    1. \bdog\b | \bcat\b
    1. \bdog\b|\bcat\b

C

Challenge

Q10. What do we put after a character to match strings where that character appears two to four times in sequence?

    1. {2,4}
    1. {2-4}
    1. [2,4]

A

Challenge

Q11. The regular expression \d{4} will match what?

    1. Any four character sequence?
    1. Any four digit sequence?
    1. The letterdfour times?

B

Challenge

Q12. If brackets are used to define a group, what would match the regular expression (,\s[0-9]{1,4}){4},\s[0-9]{1,3}\.[0-9]?

    1. , 135, 1155, 915, 513, 18.8
    1. , 135, 11557, 915, 513, 18.8
    1. , 135, 1155, 915, 513, 188

A

Key Points
  • Regular expressions answers