Cryptomining Concepts BBLC Practice Questions (Page 10)

Questions 46–50

1. 46foundation · easy

   A miner is considering purchasing a new ASIC miner. Which of the following would most directly reduce the miner's profitability?

   • AA decrease in the cryptocurrency's market price
   • BAn increase in the block reward
   • CA decrease in network difficulty
   • DA decrease in electricity rates
   Reveal Solution Discussion Select an answer first
2. 47expert · hard

   A mining company operates a large facility with ASICs. The network's difficulty has increased by 20% over the past month, and the price of the cryptocurrency has dropped by 15%. The company's electricity contract is fixed for the next year. What is the most likely impact on the company's profitability, and what action should they consider?

   • AProfitability will remain the same because the block reward is fixed and difficulty adjustments are designed to stabilize earnings
   • BProfitability will decrease, but they should increase their hash rate by adding more ASICs to compensate
   • CProfitability will increase because higher difficulty indicates more competition, which usually leads to higher prices
   • DProfitability will decrease because higher difficulty reduces the chance of earning rewards, and the lower price reduces revenue; they should consider shutting down less efficient miners
   Reveal Solution Discussion Select an answer first
4. 48expert · hard

   A government is evaluating the environmental impact of a PoW blockchain that uses a large amount of electricity. The government wants to reduce the network's carbon footprint without changing the consensus mechanism. Which approach is most effective?

   • AIncrease the block reward to incentivize more efficient mining hardware.
   • BMandate that miners use renewable energy sources for their operations.
   • CReduce the network difficulty to lower energy consumption.
   • DEncourage miners to use CPUs instead of ASICs to reduce energy use.
   Reveal Solution Discussion Select an answer first
5. 49foundation · easy

   In a Proof of Work blockchain, what is the primary purpose of the computational work performed by miners?

   • ATo find a valid nonce that produces a hash below a target threshold
   • BTo compress the block data to save storage space
   • CTo create a digital signature for each transaction
   • DTo encrypt the transactions in the block
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6. 50application · medium

   A mining farm operator is evaluating whether to continue mining a PoW coin. The operator has access to cheap hydroelectric power but the network difficulty has been rising steadily. Which factor is most likely to reduce the farm's profitability over the next year?

   • AThe need to replace GPU fans more frequently due to dust buildup.
   • BThe requirement to hold mined coins for a minimum period before selling.
   • CIncreasing network difficulty that reduces the expected number of blocks the farm can mine.
   • DThe cost of mining software licenses that must be renewed annually.
   Reveal Solution Discussion Select an answer first