FREE Certified Blockchain Professional (CBCP) Blockchain Core Concepts Questions and Answers

Question 1

Which of the following best describes the principle of decentralization in blockchain technology?

Accepted Answer

Control and decision-making are distributed across a peer-to-peer network of participants.

Answer

A single server is responsible for validating all transactions and maintaining the ledger.

Answer

A government-appointed body regulates the network and approves new blocks.

Answer

Transactions are processed by a central financial institution before being added to the chain.

Question 2

A development team is building a decentralized application for supply chain management. They need a mechanism to ensure that all participants agree on the validity and order of transactions without a central intermediary. Which blockchain component fulfills this requirement?

Accepted Answer

Consensus Mechanism

Answer

Cryptographic Hash

Answer

Public Key Infrastructure

Answer

Smart Contract

Question 3

What is the primary function of a cryptographic hash in linking blocks together to form a blockchain?

Accepted Answer

To generate a unique, fixed-length 'fingerprint' of the previous block's header, creating a secure and immutable chain.

Answer

To encrypt the transaction data within the block, making it unreadable to unauthorized parties.

Answer

To digitally sign transactions, proving the identity of the sender.

Answer

To define the rules of the network, such as block rewards and transaction fees.

Question 4

In the context of blockchain, what is the relationship between a user's private key and public key?

Accepted Answer

The public key is mathematically derived from the private key and can be shared freely.

Answer

The public key is used to generate the private key.

Answer

The private key and public key are identical and can be used interchangeably.

Answer

The private key is mathematically derived from the public key and must be kept secret.

Question 5

An organization wants to automate the payment of an insurance policy. The policy should automatically pay out a claim to a farmer if a trusted external weather data source reports a drought. Which blockchain concept would be most suitable for implementing this?

Accepted Answer

Smart Contract

Answer

Proof-of-Work

Answer

Merkle Tree

Answer

Cold Storage

Question 6

Which of the following is a key component of a block header in a typical blockchain?

Accepted Answer

The hash of the previous block.

Answer

A list of all user public keys on the network.

Answer

The complete code of all smart contracts.

Answer

The private keys of the transacting parties.