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LPI 102-500 Exam - Topic 3 Question 72 Discussion

Actual exam question for LPI's 102-500 exam
Question #: 72
Topic #: 3
[All 102-500 Questions]

What output will the following command sequence produce?

echo '1 2 3 4 5 6' | while read a b c; do

echo result: $c $b $a;

done

Show Suggested Answer Hide Answer
Suggested Answer: D

by Cristy at Dec 27, 2023, 09:43 PM

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Tayna
6 months ago
It's gotta be C, right? 6 5 4 makes sense.
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Paris
6 months ago
Definitely not B, that's for sure!
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Francoise
6 months ago
Wait, is it really 3 2 1? Sounds off.
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Glen
7 months ago
I think it outputs 3 2 1!
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Anglea
7 months ago
The command reads three variables at a time.
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Stanton
7 months ago
I'm confused about how the while loop processes the input; I thought it would just print all numbers in order.
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Fredric
7 months ago
I believe the output will show the last number first, so maybe it's option C or E?
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Tony
7 months ago
I remember a similar question where we had to reverse the order of variables, but I can't recall the exact output.
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Wenona
8 months ago
I think the command reads the first three numbers into a, b, and c, but I'm not sure how the output will be formatted.
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Lore
8 months ago
Hmm, I'm not sure about this one. I think I need to try running the command sequence myself to really understand what's happening. The wording of the question is a bit tricky.
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Loren
8 months ago
I've got this! The 'read' command is taking the first three values from the input, and the 'echo' statement is printing them out in reverse order. So the correct answer is A.
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Lamonica
8 months ago
I'm a bit confused here. The question says the output will be from the 'echo' command, but it's not clear to me how the variables a, b, and c are being used in that.
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Yuonne
8 months ago
Okay, let me break this down step-by-step. The 'read' command is assigning the first three space-separated values to the variables a, b, and c. So the output should be the reverse order of those three variables.
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Anastacia
8 months ago
Hmm, this looks like a tricky one. I'll need to carefully read through the command sequence and think through the order of variable assignment.
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Pura
8 months ago
Hmm, I'm a bit confused. I thought the tracking ID might be the same as the app ID from AdMob, so I'm not sure if option B is the right answer.
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Yuette
8 months ago
I think RFPs are mainly about providing vendors with technical and functional requirements, right? But I'm not 100% sure.
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Edda
8 months ago
This looks straightforward. I'm pretty sure ONVIF is Axis' own API, while VAPIX is the standard API. I'll double-check my answer before submitting.
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Benton
8 months ago
This seems like a straightforward question about the effects of a just-in-time purchasing system. I'll need to think through the different cost changes that could occur.
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Graciela
1 year ago
Ah, the old 'read a b c' trick. Classic! I'm going with A, because who doesn't love a little reverse-order action? It's like a secret shell script handshake.
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Juan
1 year ago
I got this! The answer is definitely A. It's like a little dance with the variables, you know? First, you got your 'c', then your 'b', and finally your 'a'. It's like a shell script shuffle!
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Linsey
1 year ago
This is a tricky one! I can see the logic behind A, but I'm worried that it might not handle the case where there are fewer than three values. Maybe I should go with B instead, just to be on the safe side.
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Ryan
11 months ago
Great, let's go with B then.
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Arthur
11 months ago
Yeah, B seems like the most logical choice.
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Sue
11 months ago
I agree, let's go with B just to be sure.
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Mitsue
11 months ago
I think B is the safest option here.
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Delila
1 year ago
Hmm, I'm not sure about this one. I was thinking it might be D, which would print all the values in reverse order. But I could be wrong, so I'll go with A just to be safe.
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Horace
12 months ago
I'm not sure either, but I'll go with A) result: 3 4 5 6 2 1
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Bobbye
12 months ago
I believe it's B) result: 1 2 3 4 5 6
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Bettina
12 months ago
I think it will be A) result: 3 4 5 6 2 1
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Ma
1 year ago
Well, this looks like a typical shell script question. I think the correct answer is A, which will print the third, second, and first values of each line. The 'read a b c' command will split the input into three variables, and we're printing them in reverse order.
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Katheryn
12 months ago
User4: That makes sense, so the output should be result: 3 4 5 6 2 1.
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Magda
12 months ago
User3: So, it will print them in reverse order.
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Werner
1 year ago
User2: Yes, the 'read a b c' command will split the input into three variables.
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Teresita
1 year ago
User1: I think the correct answer is A, which will print the third, second, and first values of each line.
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Billye
1 year ago
But if you look at the command sequence closely, it will output 3 4 5 6 2 1, so I still think it's A.
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Levi
1 year ago
I disagree, I believe the answer is B.
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Billye
1 year ago
I think the answer is A.
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Kenneth
1 year ago
But if you look closely, the command sequence reads the values in reverse order, so the answer should be A.
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Stefan
1 year ago
I disagree, I believe the answer is B.
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Kenneth
1 year ago
I think the answer is A.
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