Question 1
(a)
Define
1)Block
2)Nonce
3)Altcoin
3 Marks
(b)
Which are different use cases of cryptocurrencies?
4 Marks
(c)
Discuss various components of blockchain
7 Marks
Gujarat Technological UniversitySummer 2026 Examination
GTU 3171618 Blockchain Summer 2026 Paper Solution & PDF
B.E. · IT Engineering · Semester 7 · Subject Code: 3171618
Total Marks70 MarksExternal theory exam
Passing Marks23 Marks33% minimum cutoff
Exam Duration2.5 Hours2:30 PM – 5:00 PM
Paper Structure5 QuestionsWith internal OR choices
Question 2
(a)
Write various applications of blockchain
3 Marks
(b)
Describe consensus mechanism in blockchain
4 Marks
(c)
Explain concept of decentralization and distribution in blockchain
7 Marks
OR OPTION
(c)
Describe smart contract with suitable example of any industry
7 Marks
Question 3
(a)
What is bitcoin mining?
3 Marks
(b)
Discuss different types of smart contracts
4 Marks
(c)
Analyze Ethereum blockchain and discuss its various use cases
7 Marks
OR OPTION
(a)
Discuss 51% attack in blockchain
3 Marks
(b)
Describe key characteristics of private blockchain
4 Marks
(c)
Elaborate any popular public blockchain and discuss its features
7 Marks
Question 4
(a)
Explain proof-of-work algorithm in blockchain
3 Marks
(b)
Discuss consortium blockchain with example
4 Marks
(c)
Explain different types of blockchain oracles in detail
7 Marks
OR OPTION
(a)
Discuss pBFT algorithm
3 Marks
(b)
Differentiate public blockchain and private blockchain
4 Marks
(c)
Discuss state machine replication in permissioned blockchain
7 Marks
Question 5
(a)
Discuss about Metamask
3 Marks
(b)
Describe important characteristics of Ripple
4 Marks
(c)
Elaborate blockchain applications in healthcare sector
7 Marks
OR OPTION
(a)
What is crypto wallet? Give two examples of crypto wallet
3 Marks
(b)
How can blockchain be used in education sector ?
4 Marks
(c)
Explain the limitations and challenges in blockchain implementation
7 Marks
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About this Examination Paper & Attribution
Official Gujarat Technological University (GTU) examination paper and step-by-step solutions for Blockchain (Summer 2026, 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.