Preview Questions FinTech Specialist | Role Specific Skill

Question 1: In a blockchain-based financial application, what is the role of a public key infrastructure (PKI)?

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To store the transaction data in a decentralized ledger

To ensure the anonymity of the participants

To provide secure transaction verification and digital signatures

To track the flow of digital assets across the network

Question 2: In a decentralized finance (DeFi) system, what is the role of a "liquidity pool"?

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To store digital identities for customers

To hold assets that enable decentralized trading

To ensure compliance with financial regulations

To provide collateral for stablecoin creation

Question 3: In the context of mobile payments, what does the term "contactless" refer to?

Which action should you take?

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A payment method requiring the use of QR codes

A payment method that uses a physical card only

A payment method that uses email verification

A payment method that does not require physical contact with a payment terminal

Question 4: What is the role of "gas" in the Ethereum blockchain when executing smart contracts?

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Gas is a method to increase transaction speed

Gas is used to determine the computational cost of executing transactions

Gas reduces the energy consumption of Ethereum miners

Gas ensures that transactions are immutable

Question 5: Which of the following is the main difference between a digital wallet and a traditional bank account?

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A digital wallet stores and manages cryptocurrencies only

A digital wallet requires a physical card for transactions

A digital wallet allows users to make and receive payments electronically

A digital wallet does not require any internet connection

Question 6: When dealing with scalable key management in a large financial institution's blockchain applications, which technique ensures secure, decentralized key storage and signing without relying solely on a single hardware security module (HSM)?

Which action should you take?

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Using public keys only and never securing private keys

Printing all private keys and locking them in a physical vault

Storing all private keys in a single HSM that is accessed by all nodes

Threshold cryptography (e.g., Shamir's Secret Sharing) allowing distributed key shares and secure multiparty signature schemes (MPC)