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LPI 101-500 Exam - Topic 2 Question 73 Discussion

Given the following input stream:txt1.txtatxt.txttxtB.txtWhich of the following regular expressions turns this input stream into the following output stream?txt1.bak.txtatxt.bak.txttxtB.bak.txt
B) s/txt/bak.txt/
A) s/^.txt/.bak/
C) s/txt$/bak.txt/
D) s/^txt$/.bak^/
E) s/[.txt]/.bak$1/

LPI 101-500 Exam - Topic 2 Question 73 Discussion

Actual exam question for LPI's 101-500 exam
Question #: 73
Topic #: 2
[All 101-500 Questions]

Given the following input stream:

txt1.txt

atxt.txt

txtB.txt

Which of the following regular expressions turns this input stream into the following output stream?

txt1.bak.txt

atxt.bak.txt

txtB.bak.txt

Show Suggested Answer Hide Answer
Suggested Answer: B

by Rikki at Aug 07, 2023, 11:57 AM

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Penney
9 months ago
C is definitely not it, just saying.
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Helga
9 months ago
Surprised that E even made it here!
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Bernardine
10 months ago
Wait, isn't D just wrong?
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Angelica
10 months ago
I think B is a better choice, though.
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Jenifer
10 months ago
Looks like option A is the right one!
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Joana
10 months ago
I definitely recall that we want to match ".txt" specifically at the end, so maybe option C is the best fit after all.
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Hortencia
10 months ago
I'm confused about the anchors in these expressions. Does "^" mean the start of the string or the start of the line?
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Aleisha
11 months ago
I remember practicing a similar question where we had to change file extensions. I feel like option C might be the right choice.
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Amie
11 months ago
I think we need to replace the ".txt" at the end of each filename, but I'm not sure which regex does that correctly.
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Lynelle
11 months ago
Okay, I think I've got a good handle on this. Partitions are used to simplify management and enable different teams to work on different parts of the architecture simultaneously, while also reflecting the organization's structure.
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Nida
11 months ago
I think the ip radius source-interface command is important because it defines which interface the RADIUS requests come from, but I'm not sure if that's the only reason.
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Chau
11 months ago
I'm a little confused by the wording of the question. I'll need to re-read it a few times to make sure I understand what they're asking before I select an answer.
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