Gujarat Technological UniversitySummer 2025 examination

GTU 3171618 Blockchain Summer 2025 Question Paper & PDF

B.E. · IT Engineering · Semester 7 · Subject code 3171618
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 2:30 PM – 5:00 PM
Questions
5 with internal choice
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3 of 25 questions on this paper were also asked in other years. Each is marked below with the years it appeared.See all 3 repeated 3171618 questions, most asked first

Q.1

14 Marks
(a)
3 marks
List the key features of blockchain?
(b)
4 marks
Blockchain is a distributed database. How does it differ from traditional databases?
(c)
7 marksAsked in 2 of 2 papers
Explain the Components of the blockchain.

Also asked in Summer 2026 Q1c

Q.2

14 Marks
(a)
3 marks
Define What is Blockchain? Why Blockchain is important?
(b)
4 marks

Write Application of Blockchain. Also, list the name of some popular platforms for developing blockchain applications.

(c)
7 marks
Demonstrate How does Blockchain works?
(c)
7 marks
How do different cryptocurrency wallets differ? Explain.

Q.3

14 Marks
(a)
3 marks
Explain in detail the types of cryptocurrency.
(b)
4 marks
What is a ledger? Is Blockchain an incorruptible ledger?
(c)
7 marks
Explain in detail the types of Blockchain.
(a)
3 marks
Explain What is encryption? What is its role in Blockchain?
(b)
4 marks
What are the Merkle trees? What is its importance in blockchain?
(c)
7 marks
Difference between the Bitcoin blockchain and the Ethereum Blockchain?

Q.4

14 Marks
(a)
3 marks

Blockchain-as-a-Service(BaaS) is a concept similar to Software-as-a-Service (SaaS). Justify.

(b)
4 marks
Differentiate Proof-of-work v/s Proof-of-stake protocol.
(c)
7 marks

Justify Answer Is block chain good for E-commerce website, which type of permissions are to be given by e-commerce website for the private blockchain?

(a)
3 marks
Discuss the concept of double spending.
(b)
4 marks
What is hash in blockchain? What are the key characteristics of Hash?
(c)
7 marks
Explain and differentiate between SHA and MD5.

Q.5

14 Marks
(a)
3 marks
Differentiate between Permission less Blockchain and Permissioned Blockchain.
(b)
4 marks
Explain state machine with three states. Explain with diagram.
(c)
7 marks

Describe the proof of work consensus algorithm and discuss the disadvantages of the proof of work consensus mechanism.

(a)
3 marks
Briefly discuss the advantage of Cryptocurrency.
(b)
4 marksAsked in 2 of 2 papers
Explain What is Metamask? How it is useful in Blockchain.

Also asked in Summer 2026 Q5a

(c)
7 marksAsked in 2 of 2 papers
Discuss in detail Smart Contract in Ethereum with Example.

Also asked in Summer 2026 Q2c OR

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About this paper

Official Gujarat Technological University (GTU) examination paper for Blockchain (Summer 2025, B.E. · IT Engineering, Sem 7). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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