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4. (a) Describe four consensus-mechanism-and-mining-based types of attack on blockchains with specific reference to one
Posted: Wed Apr 27, 2022 3:37 pm
by answerhappygod
- 4 A Describe Four Consensus Mechanism And Mining Based Types Of Attack On Blockchains With Specific Reference To One 1 (112.77 KiB) Viewed 38 times
4. (a) Describe four consensus-mechanism-and-mining-based types of attack on blockchains with specific reference to one of the pre- conditions and the triggers for each such attack; include the 51% attack type as one of the attack types to be described. (12 marks) (b) Describe why a roll-back may be needed in a blockchain and state one main undesirable side-effect of any roll-back and how this may be avoided. (6 marks) (c) Distinguish between any two types of re-centralisation risk in blockchain. (2 marks)