CBSP Online Practice Questions and Answers

Malware infections of blockchain nodes can compromise the security of the blockchain's consensus algorithm.

A. True

B. False

The decentralization of the blockchain makes it immune to traditional Denial of Service attacks.

A. True

B. False

Poorly designed smart contracts can only be disabled on the blockchain if this functionality was built in from the beginning.

A. True

B. False

Transactions can be added to DAG-based distributed ledgers without being validated but the same is not true for blockchain.

A. True

B. False

This sample code is vulnerable to which of the following attacks?

A. Bad Randomness

B. Reentrancy

C. Arithmetic

D. Unchecked Return Values

A controversial update to blockchain functionality could increase the vulnerability of the blockchain to attack.

A. True

B. False

For which of the following attacks is a permissioned or private blockchain the best solution?

A. Routing

B. Denial of Service

C. Replay

D. Sybil

Malicious smart contracts can potentially infect the nodes running the blockchain software.

A. True

B. False

A major advantage of a stale channel is that it provides a permanent means of transferring value between two parties.

A. True

B. False

The List hack demonstrated that biockchains using short addresses are exploitable.

A. True

B. False

Which smart contract vulnerabilities can be exploited by a malicious miner? Select all that apply

A. Bad Randomness

B. Short Addresses

C. Timestamp Dependence

D. Race Conditions

Blockchain technology is designated to be self-contained with no interaction with external components.

A. True

B. False

Confidential Transactions prove that inputs and outputs ot a transaction are equal.

A. True

B. False

Which of the following blockchains best implements need-to-know tor blockchain data?

A. Ethereum

B. Corda

C. Hyperledger

A network design where some nodes are prohibited from communicating directly with other nodes does not compromise the security of the blockchain.

A. True

B. False