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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.


Contribute your Thoughts:

Tomoko
2 days 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
4 days 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
13 days ago
What happens to the ledger and state database after the delState('A') function is committed?
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Isabella
13 days 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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Matthew
16 days 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.
upvoted 0 times
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