BTA CBBF Certification Sample Questions

02. A regional bank plans to move its outbound remittances onto a shared blockchain ledger with partner banks abroad, replacing part of the chain of correspondent banks it uses today. A manager assumes the new ledger will take care of regulatory checks automatically.
Which obligation does the bank still carry after the move?
a) Keeping its customers anonymous, as the ledger requires
b) Running mining hardware that secures the public Bitcoin network
c) Checking customer identity and screening each transfer under the rules that apply to it
d) Approving every other bank's transfers before they can be added to the ledger

03. Three co-writers plan a smart contract that splits their song's streaming royalties automatically. They expect the split to change if a fourth writer is added for a planned remix.
What should they settle before the contract is deployed?
a) Which streaming service will own the contract and choose the split once it runs
b) How the split will be updated, since the deployed code cannot simply be edited
c) Whether to hide the split from the writers so none of them can dispute it
d) How the contract will rewrite its own terms when the writers disagree

04. A state agency is exploring self-sovereign identity for residents' digital credentials, such as driving licenses and professional permits. Its current system stores every credential in one agency database that businesses query when they need to check someone.
What distinguishes self-sovereign identity from the agency's current approach?
a) Residents become fully anonymous, since no issuer ever confirms who holds each credential
b) The agency keeps every resident's credentials in one database that it can update and share at will
c) Each resident's full personal details are published on a public blockchain for easy checking
d) Residents hold their own credentials and choose what to share

05. Households in a neighborhood with rooftop solar panels want to sell their surplus electricity directly to neighbors, instead of only selling it back to the utility at a fixed rate set once a year.
What would a shared blockchain ledger contribute to this arrangement?
a) Fixed prices for all trades, set once by the utility for the whole year
b) A shared record of each trade that all participants can verify
c) Anonymous trading that hides who sold power
d) Automatic balancing of grid voltage between houses as each trade is recorded

06. A drug manufacturer gives every medicine pack a unique serial number and records it on a blockchain shared with wholesalers and pharmacies. Each party records the pack on receipt, and pharmacies check the serial before dispensing.
A pharmacy scans a serial whose record shows it was already dispensed elsewhere. What does this most likely indicate?
a) The ledger has been tampered with, because one serial can only appear in a single pharmacy's copy of the chain
b) A copied serial on a likely counterfeit pack, since each genuine serial is dispensed only once
c) The pack in hand is genuine, since any serial number found on the ledger must have been issued by the manufacturer
d) A delayed record update that the ledger will correct on its own shortly

07. Telecom providers in five countries plan a shared blockchain to record customer verification results, with each provider running a node in its home country. One country's regulator requires that its residents' customer records stay inside that country.
Why does this design conflict with the regulator's requirement?
a) Every node keeps a full copy of the ledger, so each record would also sit in the other four countries
b) Consensus requires a regulator in the country with the most nodes to approve each record
c) Public keys are issued by an international registry that holds each customer file
d) Hashing a record sends its full contents to a central server located outside all five of the member countries

08. A large supermarket chain asks hundreds of small growers to record every harvest and shipment on its new provenance blockchain. The growers must buy equipment and spend staff time on data entry, while the chain expects the gains to appear in its own recall handling and marketing.
Which assessment of the rollout's prospects is most accurate?
a) It will stall, because small growers are not permitted to run nodes on a private blockchain
b) It will succeed, because a blockchain automatically rewards every participant that records data on it
c) It will struggle, because the growers bear the costs while the gains go to the chain
d) It will succeed, because growers must accept any system that a large buyer chooses to adopt

09. An airline wants customers worldwide to hold its loyalty points in their own digital wallets and trade them freely with one another, without having to register with the airline.
Which platform approach fits this requirement?
a) A private chain on which the airline approves every new wallet
b) A public smart-contract platform such as Ethereum, open to anyone
c) An R3 Corda network where only the parties to each trade can see it
d) A permissioned Hyperledger Fabric network run by the airline's partners

10. A car-parts manufacturer is joining a shared ledger with its suppliers to track purchase orders and deliveries. Its IT team proposes copying the company's entire product-design, cost-model, and planning databases onto the ledger as well.
How should the team decide what goes on the ledger?
a) Record only what the partners need to share and agree on, keeping the rest in-house
b) Put everything on the ledger but encrypt it, so each supplier can read only its own portion
c) Keep every record internal, since a shared ledger holds no business data
d) Put everything on the ledger, since more shared data always creates more trust among partners