Hello NPTEL Learners, In this article, you will find NPTEL Blockchain and its Applications Assignment 11 Answers 2023. All the Answers are provided below to help the students as a reference don’t straight away look for the solutions, first try to solve the questions by yourself. If you find any difficulty, then look for the solutions.
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NPTEL Blockchain and its Applications Assignment 11 Answers 2023:
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Q.1. Hyperledger Aries is used for transmitting verifiable digital credentials.
- a. False
- b. True
Q.2. Which of the following is true about Hypeledger Aries?
- a. Aries cloud agent exposes API to access Aries capabilities
- b. Aries controller implements application business logic
- c. The controller sends requests
- d. Response events are fed back to the controller as webhooks
Q.3. Which of the following is not a risk for blockchain operations?
- a. 51% vulnerability
- b. Private key security
- c. Double spending
- d None of the above
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Q.4. Selfish mining attacks cause forking problems in the network.
- a. True
- b. False
Q.5. Which of the following is/are true for Eclipse Attack.
- a. The Attacker partitions miners
- b. The attacker re-populates the victim node’s peer tables
- c. The victim node restarts and loses current outgoing connections
- d. The victim establishes all new outgoing connections to attacker IP addresses
Q.6. Attacker can perform a front-running attack if he/she knows about upcoming transactions?
- a. False
- b. True
Q.7. Blockchain Trust is mainly controlled by which of the following?
- a. Consensus
- b. Immutability
- c. Provenance
- d. Finality
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Q.8. For defining enterprise-level blockchain, which of the below factors need to be analyzed?
- a. Network
- b. People
- c. Assets
- d. Transactions
Q.9. In which of the following cases a node stops responding?
- a. Power failure
- b. Network failure
- c. Security updates
- d. DoS attacks
Q.10. What is a major problem with Proof of Work in a large-scale network?
- a. It is difficult to implement
- b. It is Resource-intensive and consumes enormous amounts of power
- c. Multiple miners have to be rewarded
- d. It is unreliable
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About NPTEL Blockchain and its Applications Course:
In the last few years, Blockchain technology has generated massive interest among governments, enterprises, and academics, because of its capability of providing a transparent, secured, tamper-proof solution for interconnecting different stakeholders in a trustless setup. In January 2021, the Ministry of Electronics and Information Technology (MeiTY), Government of India, published the first draft of the “National Strategy on Blockchain” that highlights 17 potential applications that are of national interest.
Course Layout:
- Week 1: Introduction to Blockchain Technology and its Importance
- Week 2: Basic Crypto Primitives I – Cryptographic Hash
- Week 3: Basic Crypto Primitives II – Digital Signature
- Week 4: Evolution of the Blockchain Technology
- Week 5: Elements of a Blockchain
- Week 6: Blockchain Consensus I – Permissionless Models
- Week 7: Blockchain Consensus II – Permissioned Models
- Week 8: Smart Contract Hands On I – Ethereum Smart Contracts (Permissionless Model)
- Week 9: Smart Contract Hand On II – Hyperledger Fabric (Permissioned Model)
- Week 10: Decentralized Identity Management
- Week 11: Blockchain Interoperability
- Week 12: Blockchain Applications
CRITERIA TO GET A CERTIFICATE:
Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100
Final score = Average assignment score + Exam score
YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.
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