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GS Paper IUPSC Prelims 2019
Health & Medicine
Question No. 74Interactive Test Mode
00:00
+2-0.66

Q74. Consider the following statements: A digital signature is __________ 1. an electronic record that identifies the certifying authority issuing it 2. used to serve as a proof of identity of an individual to access information or server on Internet 3. an electronic method of signing an electronic document and ensuring that the original content is unchanged Which of the statements given above is/are correct?

Consider the following statements: A digital signature is __________

  1. an electronic record that identifies the certifying authority issuing it
  2. used to serve as a proof of identity of an individual to access information or server on Internet
  3. an electronic method of signing an electronic document and ensuring that the original content is unchanged Which of the statements given above is/are correct?
Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 2019 • Science and Technology

Correct Answer: Option (C) — 3 only

Concept & Option Breakdown

Standard Reference Verified

Statement 1 is incorrect: An electronic record that identifies the issuing Certifying Authority and binds a public key to an individual's identity is called a 'Digital Certificate', not a digital signature.

Statement 2 is incorrect: Digital certificates and credentials (such as passwords, tokens, SSL/TLS certificates) authenticate identity for accessing servers or secure networks. A digital signature is specific to verifying a particular transaction or document.

Statement 3 is correct: A digital signature is a mathematical cryptographic scheme used to authenticate the source and guarantee the integrity and non-repudiation of a digital message or document, ensuring the contents have not been altered since signing.

Elimination Heuristic & Exam Approach

Distinguish between a Digital Certificate (identity document issued by a CA) and a Digital Signature (the mathematical signing mechanism ensuring document integrity).

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2019 (Q74)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (C) — 3 only

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Frequently Asked Questions — UPSC Prelims 2019 Q74

What is the official answer for UPSC Prelims 2019 GS Paper I Question 74 (Science and Technology)?

The official UPSC answer key for this 2019 Science and Technology (Health & Medicine) question is Option (C): "3 only". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2019 question belong to?

This question belongs to GS Paper I under the subject "Science and Technology" and micro-topic "Health & Medicine". You can explore all repeated questions from Health & Medicine in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Health & Medicine UPSC Prelims question using option elimination?

Distinguish between a Digital Certificate (identity document issued by a CA) and a Digital Signature (the mathematical signing mechanism ensuring document integrity).

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