Revision summary
Official key is (d) 1 and 3 only. A public blockchain is a shared ledger without a single controller, and permissionless development is part of that design. It is not limited to cryptocurrency data.
Model answer
Introduction
(a) 1 only. Permissionless apps are also true of public chains.
Summary. Official key is (d) 1 and 3 only. A public blockchain is a shared ledger without a single controller, and permissionless development is part of that design. It is not limited to cryptocurrency data.
Body
- B
1 and 2 only. Data on a chain is not ‘crypto only’.
- C
2 only. The false limb.
- D
1 and 3 only. A public ledger no single user controls; anyone can build on the open rules. Crypto is one application, not the only payload.
Summary. Official key is (d) 1 and 3 only. A public blockchain is a shared ledger without a single controller, and permissionless development is part of that design. It is not limited to cryptocurrency data.
Conclusion
Summary. Official key is (d) 1 and 3 only. A public blockchain is a shared ledger without a single controller, and permissionless development is part of that design. It is not limited to cryptocurrency data.
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