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Linux Foundation Exam HFCP Topic 4 Question 18 Discussion

Actual exam question for Linux Foundation's HFCP exam
Question #: 18
Topic #: 4
[All HFCP Questions]

What happens if the user submits a transaction with no matching function?

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Suggested Answer: D

In Hyperledger Fabric, if a user submits a transaction with no matching function specified in the smart contract, the unknownTransaction function is invoked by default. This function serves as a catch-all method that can be used to handle cases where the transaction type is not recognized, providing a mechanism to manage or log these occurrences effectively .


by Alva at Sep 17, 2024, 02:24 AM

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Gail
8 months ago
D is the way to go. Although, I'm curious if the 'unknownTransaction' function has easter eggs. Maybe it orders pizza automatically?
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Dyan
7 months ago
I wonder what other surprises the unknownTransaction function has.
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Kathrine
7 months ago
That would be cool if it ordered pizza automatically!
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Dortha
8 months ago
D is correct. The unknownTransaction function is called.
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Susana
8 months ago
I'm not sure, but I think it could also be D) The unknownTransaction function is called. It makes sense to handle unknown transactions that way.
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Kristofer
8 months ago
I agree with Deangelo, because if there's no matching function, the transaction should be rejected.
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Theron
8 months ago
I'm going with C. It's like the default case in a switch statement - gotta catch 'em all!
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Isaac
9 months ago
B is tempting, but I'd rather not have the transaction ignored. Imagine the chaos if that happened in production!
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Terina
8 months ago
D) The unknownTransaction function is called.
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Dyan
8 months ago
D) The unknownTransaction function is called.
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Lajuana
8 months ago
B) Nothing, the transaction is ignored.
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Gary
8 months ago
A) The peer will have rejected the transaction.
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Tayna
8 months ago
A) The peer will have rejected the transaction.
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Polly
9 months ago
Option D seems the most logical, but my gut says A. I really hope the 'unknownTransaction' function isn't filled with glitter bombs!
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Willodean
8 months ago
I agree, it's better to go with option A to avoid any issues.
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Elouise
9 months ago
I think option A is correct. The peer will reject the transaction.
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Deangelo
9 months ago
I think the answer is A) The peer will have rejected the transaction.
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