Final exam questions on digital economy for final exam

Talk about Bitcoin and its evolution.

Key words: 2008, Satoshi Nakomoto, blockchain, cryptocurrency, price evolution

58. 
    Talk about Blockchain and its main elements.
    

Key words: shared, distributed ledger, cryptography, blocks, fast, safe, distributed ledger technology, immutable records, smart contracts

59. 
    How does blockchain work?
    

Key words: data, block, transaction, blockchain, consensus, new block, private key, public key

60. 
    What are the benefits of blockchain?
    

Key words: record-keeping, safety, fast, time saving, cost saving, space saving, smart contracts, grater trust, greater security, more efficiencies

61. 
    Talk about the types blockchain networks.
    

Key words: public blockchain networks, private blockchain networks, permissioned blockchain networks, consortium blockchains.

62. 
    Give some examples of cryptcurrencies (altcoins) and their rankings or other information.
    

Key words: Ethereum, Litecoin, Thether, Cordano, Polkadot, Dogecoin

63. 
    What do we need for cryptocurrency mining? And please define them shortly.
    

Key words: computers, ACIS, CPU and GPUs, coolers, electricity

64. 
    Talk about main steps of mining process.
    

Key words: nodes, transactions, form a block, hash, unconfirmed block, legitimate, pulished in the blockchain

65. 
    What are advantages and disadvantages of cryptocurrency?
    

Key words: peer-to-peer, independent, inflation, safe, anonymous, illegal transactions, money laundry, susceptible to hacks, no refund or cancellation of policy

66.