QUESTION 1 All of the following are benefits of blockchain EXCEPT: Improved transparency Increased security O...

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QUESTION 1 All of the following are benefits of blockchain EXCEPT: Improved transparency Increased security O Better traceability O Enhanced centralized money management Reduced costs QUESTION 2 Which is not a problem associated with blockchain? O Privacy Often delays a transaction Malicious smart contracts O Coding errors 1 points Saved 1 points Saved Question 4 (a) Consider each of the scenarios below and write down your own advice, as a security expert to the general public, on what to do in each of the situations. Justify your answers, and, if necessary, add assumptions to ease your discussion. i. You received an urgent request from your line manager who lost their login password at an important overseas conference and they are asking you for the password. ii. You have to send one password to a remote site. (b) Briefly explain the four primary attacks to blockchains by hackers and fraudsters? (c) What is so-called X-Force Red Blockchain Testing? (d) Explain what is so-called 51% attack in the context of blockchain. (e) Describe an ideal infrastructure for a private blockchain with integrated security. (f) Describe five applications other than cryptocurrency for blockchains. END OF PAPER [4] [4] [4] [4] [4] [5] [5] QUESTION 1 All of the following are benefits of blockchain EXCEPT: Improved transparency Increased security O Better traceability O Enhanced centralized money management Reduced costs QUESTION 2 Which is not a problem associated with blockchain? O Privacy Often delays a transaction Malicious smart contracts O Coding errors 1 points Saved 1 points Saved Question 4 (a) Consider each of the scenarios below and write down your own advice, as a security expert to the general public, on what to do in each of the situations. Justify your answers, and, if necessary, add assumptions to ease your discussion. i. You received an urgent request from your line manager who lost their login password at an important overseas conference and they are asking you for the password. ii. You have to send one password to a remote site. (b) Briefly explain the four primary attacks to blockchains by hackers and fraudsters? (c) What is so-called X-Force Red Blockchain Testing? (d) Explain what is so-called 51% attack in the context of blockchain. (e) Describe an ideal infrastructure for a private blockchain with integrated security. (f) Describe five applications other than cryptocurrency for blockchains. END OF PAPER [4] [4] [4] [4] [4] [5] [5]