1 A 51% mining attacker CANNOT potentially A. Steal coins from an existing address B. Make it unprofitable for other miners to mine they all foow the longest-chain rule Negatively affect the coins value D. Censor transactions from the blockchain 2. Which of the following operation is not supported by bitcoin a script language? A. Adding two number B. Conditioning the C. Hashing D.Looping 3. Alice is paying for millisecond-by-millisecond video streaming using bitcoin micropayments. If she simply disconnects at some point without notice and stops sending micropayments. What can the streaming company do? The company is out of luck. Soesn team any coins and must pursue Ingal recourse The company can redeem the last micropayment transaction Alice sent beloce disconnecting, which matches the length of socce she had received C The company can redeem the maximum amount at Aicially escrowed into a multidig address The company can refuse to sign the refund transaction soboh Alice and the company will end up loving Bitcoin, which will stingecrow forever 4.A traditional Byzantine fault tolerance broadcast problem does NOT require that 1. All honest nodes eventually agree on the same value All honest nodes eventually agree on the leaders the leader is honest Al malicious nodes eventually agree on the same value D. The protocol does not run forever 5. Proof-of-burn has been used or proposed to be used in all the following settings except for Exchange bitcoins for tokens in an initial coin offering Destroy undistributed tokens in a conting Slash punishmisbehaving nodes in a prostate system Pruning old spent transactions to reduce the brains 6. Which of the following technology do you expect Open Bazaar, a cryptocurrency version of e-Bay, to adopt in order to allow escrows to resolve e-commerce disputes? A Multis transactions R. Proof of burn Sharing D Lightning