Daily UPSC Prelims Current Affairs – December 21, 2022

1. Consider the following statements regarding the Ethereum blockchain platform:

  1. It is a centralised platform.
  2. It has transitioned from ‘proof of stake’ to a ‘proof-of-work’ consensus mechanism.
  3. Non-fungible tokens (NFTs) and decentralised finance (DeFi) are based on the Ethereum network.

Which of the statements given above is/are correct?

[A] Only 1
[B] Only 2
[C] Only 1 and 3
[D] Only 3

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2. Consider the following statements regarding the recent transition of the Ethereum blockchain platform from ‘proof of work’ to a ‘proof of stake’ consensus mechanism:

  1. Enhanced security
  2. High energy consumption
  3. High cost
  4. High returns

Which of the above can be considered advantages or disadvantages of this transition? Select the correct answer using the codes given below:

[A] Only 1 & 3
[B] Only 2 & 4
[C] Only 1 & 4
[D] Only 1, 2 & 4

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3. Drugs, ‘Pretomanid’, ‘Ethambutol’, ‘Pyrazinamide’ etc are used to treat which of the following medical conditions?
[A] Malaria
[B] Tuberculosis
[C] Cancer
[D] Leprosy

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