Paper 1 · ICT
UGC NET December 2021 June 2022 (23.09.2022) Shift-I
Given below are two statements. Statement I: A block-chain is a growing list of records, called blocks, which are linked using cryptography. Statement II: Block-chains which are readable by the public are widely used by crypto currencies. In the light of the above statements, choose the correct answer from the options given below.
- Statement I: A block-chain is a growing list of records, called blocks, linked using cryptography.
- Statement II: Block-chains readable by the public are widely used by crypto currencies.
ABoth Statement I and Statement II are true ✓ Correct
BBoth Statement I and Statement II are false
CStatement I is true but Statement II is false
DStatement I is false but Statement II is true
Correct answer: (A) Both Statement I and Statement II are true — The answer is that both statements are true.
Explanation
★The answer is that both statements are true.
★A block-chain is a growing chain of records called blocks linked using cryptography, so Statement I is true.
★Each block holds a cryptographic hash of the previous one along with a timestamp and data.
★Public, openly readable block-chains are widely used by crypto currencies, so Statement II is true.
★The Bitcoin block-chain is a well-known public example.
★So both statements hold together.
★So the answer is that both statements are true.
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