Bitcoin Network and Its Transactions BDC Practice Questions (Page 9)

Questions 41–42

1. 41foundation · easy

   What is the primary purpose of the scriptSig in a Bitcoin transaction input?

   • ATo specify the amount of Bitcoin being transferred
   • BTo record the transaction fee paid to miners
   • CTo provide the digital signature and public key that satisfy the locking script of the referenced UTXO
   • DTo encrypt the transaction data for privacy
   Reveal Solution Discussion Select an answer first
2. 42expert · hard

   A developer is debugging a rejected Bitcoin transaction. The transaction spends a P2PKH output and a P2SH output. The P2PKH input is valid, but the P2SH input fails validation. What is the most likely cause?

   • AThe redeem script does not match the hash in the P2SH output script.
   • BThe P2SH input has a locktime that is earlier than the P2PKH input.
   • CThe P2SH output has a value of zero.
   • DThe P2SH input uses a different signature hash type than the P2PKH input.
   Reveal Solution Discussion Select an answer first