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Linux Foundation HFCP Exam - Topic 2 Question 1 Discussion

What is a range query with a start and end key?
A) A query that searches for all keys that are in the range defined by the start and end keys.
B) A query that searches for a specific value in a composite key and all values after it.
C) A query that searches for ledger entries that have values matching the range.
D) A query that searches for all the key field in the value.

Linux Foundation HFCP Exam - Topic 2 Question 1 Discussion

Actual exam question for Linux Foundation's HFCP exam
Question #: 1
Topic #: 2
[All HFCP Questions]

What is a range query with a start and end key?

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Suggested Answer: A

In Hyperledger Fabric, a range query with a start and end key is a type of query that searches for all ledger entries whose keys fall within the specified range defined by the startKey and endKey. This is used, for example, to retrieve a subset of assets from the ledger based on their key values, effectively iterating over a specified range .


by Germaine at Apr 21, 2024, 11:48 AM

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Hortencia
10 months ago
I thought range queries were more complex than that!
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Serina
10 months ago
I think option C is misleading, it's not just about ledger entries.
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Raylene
10 months ago
Wait, isn't that just a fancy way of saying "between"?
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Loise
10 months ago
Totally agree, option A is spot on!
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Glendora
11 months ago
It's basically looking for keys between two points.
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Cristal
11 months ago
I’m a bit confused; I thought a range query was more about specific entries, like in option C, but now I’m not so sure.
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Shaun
11 months ago
I practiced a similar question where we had to identify queries based on key ranges. I feel like option A fits best with what I learned.
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Tamra
11 months ago
I'm not entirely sure, but I remember something about composite keys and searching for values after a certain point. That makes me think of option B.
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Belen
11 months ago
I think a range query is about finding all keys between two specified points, so I might go with option A.
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Otis
11 months ago
This is a good test of my understanding of database queries. I'll eliminate the options that don't mention a range, and then choose the one that best fits the description.
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Jennifer
11 months ago
I'm a little confused by the wording of the question. Is it asking about the definition of a range query, or how to actually perform one? I'll have to read it over again.
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Aliza
11 months ago
Okay, the key is to focus on the "start and end key" part of the question. That's the defining characteristic of a range query, so I'll go with option A.
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Rosendo
11 months ago
Hmm, I'm a bit unsure about the difference between a range query and a composite key query. Let me think this through carefully.
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Jerry
11 months ago
This looks like a straightforward question about range queries. I'm pretty confident I can answer this correctly.
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Reita
12 months ago
Hmm, this seems like a tricky one. I'll need to think carefully about the different network options and which one would be most appropriate for a File Analytics deployment.
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Ciara
12 months ago
I'm a little confused by the wording of the question. Does "covered by the term 'coupling'" mean we're looking for the definition of coupling, or just examples of it? I want to make sure I understand what they're asking for.
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Justine
12 months ago
Ah, I see. Translating the normalization to SQL for BigQuery seems like the most straightforward approach to minimize computation time and manual intervention. I'm leaning towards that as the best solution.
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Clarence
2 years ago
I think option D is incorrect. It doesn't really make sense in the context of a range query.
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Delbert
2 years ago
That could be a possibility too, It depends on how the query is structured.
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Fausto
2 years ago
But could it also be option C? Searching for ledger entries within a specific range?
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Eleni
2 years ago
I agree with option A sounds correct.
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Delbert
2 years ago
I think a range query with a start and end key searches for keys within that range.
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Francoise
2 years ago
C) A query that searches for ledger entries that have values matching the range.
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Bettyann
2 years ago
A) A query that searches for all keys that are in the range defined by the start and end keys.
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Kristofer
2 years ago
What is a range query with a start and end key?
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