CBP CBP Bitcoin Script and Protocol Development

Question 1

What programming language is used to write Bitcoin transaction scripts?

Accepted Answer

Bitcoin Script, a stack-based language

Answer

Bitcoin uses Script, a simple stack-based programming language that defines the conditions under which transaction outputs can be spent.

Question 2

What does 'P2PKH' stand for in Bitcoin scripting?

Accepted Answer

Pay-to-Public-Key-Hash

Answer

P2PKH (Pay-to-Public-Key-Hash) is the most common Bitcoin script type, requiring the spender to provide a public key matching a hash and a valid signature.

Question 3

What is the purpose of OP_RETURN in Bitcoin Script?

Accepted Answer

To embed arbitrary data in an unspendable transaction output

Answer

OP_RETURN marks a transaction output as unspendable and allows up to 80 bytes of arbitrary data to be recorded immutably on the blockchain.

Question 4

What is a UTXO in Bitcoin?

Accepted Answer

Unspent Transaction Output

Answer

A UTXO (Unspent Transaction Output) is the output of a Bitcoin transaction that has not yet been used as an input in another transaction.

Question 5

What does SegWit (Segregated Witness) separate from Bitcoin transactions?

Accepted Answer

The witness data (signatures) from the transaction data

Answer

SegWit separates signature (witness) data from transaction data, fixing transaction malleability and effectively increasing block capacity.

(CBP) Certified Bitcoin Professional Practice Test

(CBP) Certified Bitcoin Professional Practice Test

CBP CBP Bitcoin Script and Protocol Development