Linux Foundation Exam HFCP Topic 1 Question 17 Discussion

Actual exam question for Linux Foundation's HFCP exam

Question #: 17
Topic #: 1

[All HFCP Questions]

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

AA query that searches for all keys that are in the range defined by the start and end keys.

BA query that searches for a specific value in a composite key and all values after it.

CA query that searches for ledger entries that have values matching the range.

DA query that searches for all the key field in the value.

Show Suggested Answer

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 Arleen at Sep 12, 2024, 10:14 PM

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Elly

1 months ago

I think it's A because it makes sense to search for keys within a range.

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Dierdre

1 months ago

I'm not sure, but C could also be a possibility.

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Makeda

1 months ago

I'd be impressed if anyone could come up with a 'range query' that searches for 'all the key field in the value'. Sounds like a job for the query whisperer!

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Sabina

18 hours ago

C) A query that searches for ledger entries that have values matching the range.

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Rupert

6 days 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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Quentin

1 months ago

I'm just hoping the answer isn't 'D) All of the above'. That would be a real range query alright - a range of complete nonsense!

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Alex

1 months ago

D is just plain weird. What kind of query searches for all the key fields in the value? A is the clear winner here.

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Toi

1 months ago

C is talking about ledger entries, which is a different thing entirely. A is the only one that actually describes a range query.

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Julian

1 months ago

B sounds more like a partial key query, not a range. I'm pretty sure the answer is A.

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Fallon

9 days ago

C) A query that searches for ledger entries that have values matching the range.

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Trinidad

11 days ago

B) A query that searches for a specific value in a composite key and all values after it.

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Wilson

16 days 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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Joesph

1 months ago

I agree with Lashaunda, A makes sense.

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Lashaunda

2 months ago

I think the answer is A.

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Jerlene

2 months ago

Definitely going with A on this one. Range queries are all about searching within a defined key range, not just for a specific value.

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Genevive

1 months ago

Yes, A is the best choice for this type of query. It searches for keys within a specified range.

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Genevive

1 months ago

I agree, A is the correct option for a range query with a start and end key.

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