Bitcoin Mining, Forking, and Scalability Solutions BDC Practice Questions (Page 11)

Questions 51–54

1. 51application · medium

   A miner is calculating profitability after the next halving event. Which of the following will directly result from the halving?

   • AThe block reward will decrease from 6.25 BTC to 3.125 BTC, reducing miner revenue per block.
   • BThe difficulty will automatically decrease to compensate for lower miner revenue.
   • CThe block time will increase to 20 minutes to maintain supply rate.
   • DTransaction fees will be eliminated to simplify the reward structure.
   Reveal Solution Discussion Select an answer first
2. 52foundation · easy

   In the Bitcoin mining process, what is the immediate step after a miner successfully validates a set of pending transactions?

   • AImmediately spend the block reward to a new address
   • BUpdate the difficulty target for the next block
   • CDiscard the block and start mining the next block
   • DBroadcast the block to the network and wait for other nodes to accept it
   Reveal Solution Discussion Select an answer first
4. 53expert · hard

   A large number of miners shut down due to a regional power outage, causing the network hash rate to drop by 40%. What will happen to the difficulty and block time in the short term?

   • ABlock time will decrease, and difficulty will increase at the next adjustment.
   • BDifficulty will immediately decrease to maintain the 10-minute block time.
   • CBlock time will remain 10 minutes because difficulty adjusts automatically.
   • DBlock time will increase temporarily, and difficulty will decrease at the next adjustment.
   Reveal Solution Discussion Select an answer first
5. 54application · medium

   A developer is reviewing Bitcoin's scalability improvements and wants to understand how SegWit increases block capacity. Which explanation is correct?

   • ASegWit removes signature data from the transaction and stores it in a separate witness structure, increasing the effective block capacity.
   • BSegWit allows miners to include more transactions by reducing the block time to 5 minutes.
   • CSegWit compresses transaction data using a new algorithm, reducing the size of each transaction.
   • DSegWit increases the block size limit from 1 MB to 4 MB, allowing more transactions per block.
   Reveal Solution Discussion Select an answer first