UPSC Prelims 2025 · GS Paper I
Question 47: Science and Technology
Consider the following statements :
- IIt is expected that Majorana 1 chip will enable quantum computing.
- IIMajorana 1 chip has been introduced by Amazon Web Services (AWS).
- IIIDeep learning is a subset of machine learning.
Which of the statements given above are correct?
AnswerThe answer is (c).
Majorana 1 is a chip introduced by Microsoft in February 2025, built on topological qubits with the aim of making quantum computing scalable, so Statement I is correct and Statement II, which credits Amazon Web Services, is wrong. AWS announced a different quantum chip, Ocelot. Deep learning, which uses multi-layered neural networks, is a subset of machine learning, which is itself a subset of artificial intelligence, so Statement III is correct.
- I. Majorana 1 is designed to enable scalable quantum computing.
- II. Microsoft, not AWS, introduced Majorana 1.
- III. Deep learning is a subset of machine learning.
How you could have got this
- If you were sure statement II is not correct, (a), (b) and (d) go: each of them includes II.
What you needed to know: Microsoft, not AWS, introduced Majorana 1.
Only (c) is left. You didn’t need statements 1 or 3.
This follows an unofficial answer: UPSC has not published its key for this year, and if that answer is wrong, so is this path.
Which options go is worked out from UPSC’s key and the options, not by a model.
Why each option is right or wrong
- (a) Wrong: Statement II names the wrong company.
- (b) Wrong: Statement II is incorrect.
- (c) Right: Majorana 1 is a quantum computing chip, and deep learning is a subset of machine learning.
- (d) Wrong: Statement II is incorrect.
Explanation: written by UPSC Grade, not by UPSC.
Source: UPSC, Civil Services (Preliminary) Examination 2025, General Studies Paper I, Series A. The paper on upsc.gov.in.