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Linux Foundation Exam HFCP Topic 3 Question 31 Discussion

Actual exam question for Linux Foundation's HFCP exam
Question #: 31
Topic #: 3
[All HFCP Questions]

After the transaction that contains the delState("A") function is committed, what happens to the ledger and state database?

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Suggested Answer: C

In Hyperledger Fabric, when a transaction that includes the delState('A') function is committed, it results in the removal of the state of the key 'A' from the current state database. However, the history of all transactions that have affected the key 'A' remains intact in the ledger. This operation ensures that while the current state reflects the deletion, the immutability and traceability of the ledger are preserved, allowing for auditability and verification of past states. Options such as setting an empty value to the key or altering the transaction history are not supported, as they would violate the principles of immutability and transparency central to blockchain technology. Therefore, the correct outcome of a delState('A') operation is that the current state of 'A' is deleted, but its transaction history remains accessible in the ledger.


by Glynda at Apr 09, 2025, 08:46 PM

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Honey
2 months ago
Hmm, this question is a real head-scratcher. I'm going to go with option A and hope the grader has a sense of humor.
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Susy
13 days ago
User 3: I agree with Curt, option A seems like the right choice.
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Curt
17 days ago
User 2: I'm not so sure, I think it might be option C.
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Cletus
28 days ago
User 1: I think option A is correct.
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Buddy
2 months ago
Hold on, are we sure the ledger is not just a fancy name for the state database? I'm going with option D just to be safe.
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Keith
26 days ago
Tasia: Oh, I see. Thanks for clarifying!
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Tasia
1 months ago
User 2: The state of the key 'A' is removed from the state database, but its history remains in the ledger.
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Dell
1 months ago
User 1: The ledger and state database are different. Option D is incorrect.
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Tomoko
2 months ago
I believe option C is correct because the delState function deletes the current state but keeps the history for auditing purposes.
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Stefanie
2 months ago
I think the state of the key 'A' is removed from the state database, but its history remains in the ledger.
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Weldon
3 months ago
What happens to the ledger and state database after the delState('A') function is committed?
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Isabella
3 months ago
Option B seems more logical to me. The deleting transaction sets an empty value to the key 'A' in the write set.
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Abel
2 months ago
User 2: Yes, that makes sense. It would keep track of the history in the ledger while removing the state from the database.
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Leonor
2 months ago
User 1: I think option B is correct. The deleting transaction sets an empty value to the key 'A' in the write set.
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Matthew
3 months ago
I think option C is the correct answer. The state of the key 'A' is removed from the state database, but its history remains in the ledger.
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Avery
21 days ago
B) The deleting transaction sets an empty value to the key \'A\' in the write set.
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Katheryn
22 days ago
I agree, option C seems to be the most accurate.
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Nakisha
23 days ago
C) The state of the key \'A\' is removed from the state database, but its history remains in the ledger.
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Lashaunda
24 days ago
A) getstate(\'A\') function returns the current state of the key \'A\'.
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Kip
25 days ago
B) The deleting transaction sets an empty value to the key \'A\' in the write set.
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Felton
26 days ago
I agree, option C seems to be the most accurate.
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Emiko
2 months ago
C) The state of the key \'A\' is removed from the state database, but its history remains in the ledger.
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Tegan
2 months ago
A) getstate(\'A\') function returns the current state of the key \'A\'.
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