Q40 · UPSC Prelims 2020 · Set A · Science and Technology

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With reference to "Blockchain Technology" consider the following statements:1.It is a public ledger that everyone we inspect, but which no single user controls2.The structure and design of blockchain is such that all the data in it are about crypto currency only.3.Applications that depend on basic features of blockchain can be developed without anybody's permission.Which of the statements given above is/are correct?

Page facts
Exam
Union Public Service Commission — Civil Services Examination (UPSC)
Board
UPSC
Stage
Prelims
Year
2020
Paper
UPSC Prelims — Prelims General Studies Paper I (General Studies)
Booklet
Set A
Question
Q40
Topic
Science and Technology
Syllabus
Science, technology, space, defence, IT — Prelims GS Paper I.
A 1 only
B 1 and 2 only
C 2 only
D 1 and 3 only

Correct answer: (d) 1 and 3 only

Explanation

The correct option is marked above. The WRAP explanation for this question will be uploaded soon.

Same topic · past papers

UPSC has asked this before

These previous-year questions sit on the same topic. Open one to practise the earlier ask.

  1. 2026 · Q86 · General Studies · 2 marks

    Which of the following statements regarding the features of blockchain technology are correct? 1. Records stored in the database may be made visible to relevant stakeholders without risk of alteration. 2. Copies of the entire database are stored on multiple computers on a network, syncing within seconds. 3. Consortium blockchain is a blend of public and private blockchains allowing selective data access. 4. Mathematical algorithms make it impossible to change or delete any data once recorded and accepted. Select the answer using the code given below:

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  2. 2026 · Q91 · General Studies · 2 marks

    Which of the following statements about Real-World Assets (RWA) Tokenization are correct? 1. Tokenization is the process of turning real world assets into digital tokens using blockchain technology. 2. Tokenization of real world assets offers 24×7 access, promoting financial inclusion. 3. Tokenization of real world assets will allow the access to high growth investment opportunities for individuals in India. Select the answer using the code given below:

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  3. 2018 · Q84 · General Studies · 2 marks

    "3D printing" has applications in which of the following? 1. Preparation of confectionery items 2. Manufacture of bionic ears 3. Automotive industry 4. Reconstructive surgeries 5. Data processing technologies Select the correct answer using the code given below:

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