CCAS sample questions

Question 1

A compliance analyst at a Virtual Asset Service Provider (VASP) is reviewing a Bitcoin transaction flow using a blockchain analytics tool. The analyst observes a pattern where a large input amount is held in a single address, and over time, small fixed amounts are transferred to various exchange addresses, while the remaining significant balance is continually moved to a new change address. This pattern repeats for dozens of hops. Which specific obfuscation technique or transaction pattern is the analyst most likely observing?

Accepted Answer

Peel Chain

Answer

Dusting Attack

Answer

Bridge Hopping

Answer

CoinJoin Mixing

Question 2

A cryptocurrency exchange is configuring its Unspent Transaction Output (UTXO) management system. When analyzing the Bitcoin blockchain, which fundamental characteristic distinguishes the UTXO model from the Account-based model used by Ethereum?

Accepted Answer

In the UTXO model, balances are calculated by summing unspent outputs controlled by a private key, whereas the Account model maintains a global state of balances.

Answer

In the UTXO model, transactions can only have one input and one output, whereas the Account model allows multiple inputs.

Answer

The UTXO model is inherently centralized to prevent double-spending, while the Account model is decentralized.

Answer

The UTXO model supports smart contracts natively at the protocol layer, while the Account model requires Layer 2 solutions for scripting.

Question 3

Which of the following consensus mechanisms relies on validators locking up a specific amount of native cryptocurrency as collateral to propose and validate new blocks, rather than expending computational energy?

Accepted Answer

Proof of Stake (PoS)

Answer

Proof of Authority (PoA)

Answer

Proof of Capacity (PoC)

Answer

Proof of Work (PoW)

Question 4

A financial institution is assessing the risk of onboarding a client who operates a crypto ATM network. Unlike online exchanges, crypto ATMs (or BTMs) present unique AML challenges. Which of the following is considered the primary inherent risk factor specific to crypto ATMs?

Accepted Answer

The ability to accept cash directly for crypto without face-to-face interaction with compliance staff.

Answer

The inability of ATMs to connect to the internet for real-time pricing.

Answer

The high latency of blockchain confirmations at physical locations.

Answer

Crypto ATMs only support Privacy Coins like Monero.

Question 5

A compliance officer is investigating a customer who claims their source of wealth is 'early mining.' The customer provides a list of addresses they claim to own. The officer notices that the funds in these addresses originate from 'Coinbase' transactions rather than coinbase (mining reward) transactions. What is the technical distinction the officer must understand?

Accepted Answer

A 'coinbase transaction' is the first transaction in a block that creates new coins, whereas 'Coinbase' is a VASP entity.

Answer

Coinbase transactions are only visible on private blockchains.

Answer

There is no distinction; early miners were required to use Coinbase wallets.

Answer

Mining rewards are always distributed by the Coinbase exchange foundation.

Question 6

Select TWO characteristics that accurately describe 'Privacy Coins' such as Monero (XMR) or Zcash (ZEC) in contrast to transparent blockchains like Bitcoin. (Select TWO)

Accepted Answer

Wallet addresses on the public ledger are often 'stealth addresses' that do not match the user's actual long-term public address.

Accepted Answer

They use technologies like Ring Signatures or zk-SNARKs to obfuscate sender, receiver, and amount.

Answer

They are primarily used for cross-border bank settlements due to high transparency.

Answer

They are centralized and controlled by a single issuer who holds the master key.

Certified Cryptoasset Anti-Financial Crime Specialist Free Sample Questions

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