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LPI 101-500 Exam - Topic 5 Question 77 Discussion

Given a log file loga.log with timestamps of the format DD/MM/YYYY:hh:mm:ss, which command filters out all log entries in the time period between 8:00 am and 8:59 am?
E) grep --E ':08:[0-9]+:[0-9]+' loga.log
A) grep --E ':08:[09]+:[09]+' loga.log
B) grep --E ':08:[00]+' loga.log
C) grep --E loga.log ':08:[0-9]+:[0-9]+'
D) grep loga.log ':08:[0-9]:[0-9]'

LPI 101-500 Exam - Topic 5 Question 77 Discussion

Actual exam question for LPI's 101-500 exam
Question #: 77
Topic #: 5
[All 101-500 Questions]

Given a log file loga.log with timestamps of the format DD/MM/YYYY:hh:mm:ss, which command filters out all log entries in the time period between 8:00 am and 8:59 am?

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Suggested Answer: E

by My at Nov 25, 2023, 01:41 AM

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Lili
7 months ago
Definitely not option D, that won't work.
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Tricia
8 months ago
Wait, can it really filter that accurately?
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Tennie
8 months ago
Isn't the syntax for grep --E wrong? Should be -E.
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Barabara
8 months ago
I think it's actually option A.
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Elliot
8 months ago
Option E looks correct to me.
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Brittani
9 months ago
I think we had a similar question in class, and I want to say it was about filtering timestamps, but I can't remember the exact command we used.
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Buffy
9 months ago
I feel like option E looks familiar, but I can't remember if the `--E` flag is correct for extended regex.
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Reena
9 months ago
I remember practicing with grep, but I can't recall if the syntax for the regex is right in any of these choices.
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Luisa
9 months ago
I think the command needs to specifically target the minutes between 00 and 59, but I'm not sure which option does that correctly.
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Hoa
9 months ago
Ah, I see what they're looking for here. The key is to use the --E flag for extended regular expressions and the correct pattern to match the timestamp range. I'm pretty confident that option E is the right answer.
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Lamar
9 months ago
This seems like a tricky one. I'm not super familiar with regular expressions, so I'll have to think about this carefully. Maybe I should try option A first and see if that works, then move on to the other options if needed.
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Ling
9 months ago
Okay, let me think this through. We need to filter out log entries between 8:00 am and 8:59 am, so the timestamp should match the pattern ':08:[0-9]+:[0-9]+'. I think option E is the way to go here.
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Tommy
9 months ago
Hmm, I'm a bit unsure about this one. The timestamps have a specific format, so I'll need to carefully construct the regular expression to match that. I'm leaning towards option C, but I'm not 100% confident.
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Patti
9 months ago
This looks like a straightforward grep command to filter log entries based on the timestamp. I think option E is the correct answer, as it uses the --E flag for extended regular expressions and the correct pattern to match timestamps between 8:00 and 8:59.
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Olga
9 months ago
This seems straightforward - the value proposition is all about convincing the customer to buy your product or service, so the answer has to be C. The customer is the target.
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Ceola
9 months ago
Okay, let's see here. The key is allowing anonymous users to create issues in Jira, but without giving them further access or needing a license. I think options D and E might be the way to go.
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Lenna
10 months ago
I've got an idea! I think dividing the class into groups and having them work together would be the most effective approach. That way they can combine their efforts and produce a really detailed report.
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Tyisha
10 months ago
I've seen practice questions mentioning event logs before. Monitoring those for errors feels like a good strategy.
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