Introduction to Linux I – Chapter 08 Exam Answers 2019 + PDF file

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1. Which regular expression character matches any one character?

  • .
  • ?
  • +
  • *

2. Which regular expression character matches zero or more of the previous character?

  • ?
  • +
  • *
  • .

3. Which regular expression character matches one or more of the previous character?

  • $
  • *
  • +

4. Which of the following regular expression characters is an extended regular expression character?

  • +
  • .
  • $
  • *

5. What does “|” do in a regular expression?

  • Redirects input to the command
  • Redirects output from the command
  • Separates repetition modifiers
  • Separates alternative patterns that can be matches

6. The regular expression a? is equivalent to:

  • a{0,1}
  • a{1}
  • a{1,}
  • a{0,}

7. The regular expression a* is equivalent to:

  • a{0,1}
  • a{1,}
  • a{0,}
  • a{1}

8. The regular expression a+ is equivalent to:

  • a{1}
  • a{1,}
  • a{0,}
  • a{0,1}

9. To use extended regular expressions, you can use: (choose two)

  • grep -e
  • fgrep
  • egrep
  • grep -E

10. To use regular expression characters to match themselves, you cannot:

  • Put the character in the square brackets
  • Use the fgrep command
  • Use the slash in front of the character
  • Use the backslash in front of the character

11. What is NOT a purpose of using parentheses around parts of a regular expression?

  • They can be used to make alternation more efficient
  • They can be used to refer back to what was matched
  • They can be used to group characters for repetition
  • They can be used to change the order that the pattern is evaluating

12. Which option for grep will invert the pattern matching results?

  • -i
  • -v
  • -r
  • -o

13. If you want to use grep without regard to the capitalization of text, you can use the option:

  • -t
  • -v
  • -i
  • -r

14. To get the grep command to show the names of files that matched instead of the content that matched, you can use the option:

  • -q
  • -l
  • -f
  • -n

15. What is the reason you would use the grep command with a quiet -q option?

  • You want the output to be small
  • You want to use the logical outcome of the command
  • You want the output to be redirected to a file
  • You don’t want grep to make noise

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CCNA Questions Answersmaurice adovoekpe Recent comment authors
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maurice adovoekpe
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maurice adovoekpe

To get the grep command to show the names of files that matched instead of the content that matched, you can use the option:
-q
-l
-f
-n

CCNA Questions Answers
Admin

Updated, thanks so much!

maurice adovoekpe
Guest
maurice adovoekpe

What is the reason you would use the grep command with a quiet -q option?
You want the output to be small
You want to use the logical outcome of the command
You want the output to be redirected to a file
You don’t want grep to make noise