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Certified Blockchain Developer
Certified Blockchain Developer Intermediate — Quiz 2
Question 1 of 60
medium
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You are building a supply chain application on a permissioned blockchain. A key stakeholder requires the ability to revoke access for a specific supplier after a contract dispute. What is the MOST appropriate mechanism to implement this?
A
Hard fork the blockchain to remove the supplier's public key from the consensus mechanism.
B
Utilize an Access Control List (ACL) managed by a governance smart contract, updating permissions to deny access.
C
Broadcast a transaction containing a 'blacklist' of supplier IDs to all nodes on the network.
D
Implement a sidechain where the supplier's transactions are no longer validated.
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