MCQ’s Emerging Technologies for Engineering
Q:1. Bitcoin is _____________________ cryptocurrency.
4.None of the above
Bitcoin is a type of cryptocurrency. There are no physical bitcoins, only balances kept on a public ledger that everyone has transparent access.
Q:2. Bitcoin.org was registered in
The domain name “bitcoin.org” was registered on 18 August 2008. On 31 October 2008.
Q:3. Block with largest number of transactions was created in 2012. The number of transactions was
The amount of newly created bitcoin a miner can add to a block decreases approximately every four years (or precisely every 200,00 blocks).
Q:4. Who is Satoshi Nakomoto?
4.None of the above
Satoshi Nakamoto is the name used by the presumed pseudonymous person or persons who developed bitcoin.
5. Which is example of cryptocurrencies?
4.None of the above
Transactional cryptocurrencies serve as a way to store and exchange value. Examples include bitcoin and litecoin.
Q:6. Bitcoin works on ___________ technology.
Bitcoin is a network that runs on a protocol known as the blockchain.
Q:7. Bitcoins are generated by a process called
Bitcoins are created as a reward for a process known as mining.
Q:8. To add a block who solves POW and broadcast over network?
Satoshi Nakamoto is the name used by the presumed pseudonymous person or persons who developed bitcoin,
Q:9. BATM stands for
1.Bounded access transaction machine
BATM stands for bitcion ATM
Q:10. Do we require a bank for Bitcoins?
No, required a bank for Bitcoins.
Q:11. What is Bitcoin Pizza Day, May 22nd?
1.A day every year where people who hold bitcoin pay forward a random pizza to a stranger
2.The day when a computer programmer, Laszlo Hanyecz, paid 10,000 bitcoins for two pizzas in 2010
3.The day Satoshi announced his favorite food is pizza
4.A day sponsored by Pizza Hut where you can pay for pizza with bitcoin
On May 22, 2010, now known as Bitcoin Pizza Day, Laszlo Hanyecz agreed to pay 10,000 Bitcoins for two delivered Papa John’s pizzas. Organized on bitcoin talk forum, the Florida man reached out for help. “I’ll pay 10,000 bitcoins for a couple of pizzas.. like maybe 2 large ones so I have some left over for the next day,” Hanyecz wrote.
Q:12. What is Bitcoin fork?
1.Smart Contracts that have forked off the main Blockchain
2.A change to the bitcoin software/protocol that creates two separate versions of the blockchain with a shared history
3.Smart Contracts that have forked off the main Blockchain
4.A change to the bitcoin software/protocol that creates two separate versions of the blockchain with a shared history
Bitcoin forks are splits that happen in the transaction chain based on different user opinions about transaction history. These splits create new versions of Bitcoin currency, and they are a natural result of the structure of the blockchain system, which operates without a central authority.
Q:13. A smart contract is a
1.Special device in Bitcoin systems
2.A software program
4.A legal contract written in stamp papers
A smart contract is a computer program or a transaction protocol which is intended to automatically execute.
Q:14. Smart contract was first proposed in __________ by ____________
1.2001, Satoshi Nakamoto
2.1990, Nick Szabo
3.1994, Nick Szabo
4.1994, Satoshi Nakamoto
Smart contracts were first proposed in the early 1990s by Nick Szabo, who coined the term, using it to refer to “a set of promises, specified in digital form.
Q:15. What is a smart contract?
1.A smart contract is a computer protocol intended to digitally facilitate, verify, or enforce the negotiation or performance of a contract
2.Computer code running on top of a blockchain containing a set of rules under which the parties to that smart contract agree
3.Both a and b
4.None of these
A smart contract is a computer program or a transaction protocol which is intended to automatically execute, control or document legally relevant events and actions according to the terms of a contract or an agreement
Q:16. What is the name of the language used within Ethereum to implement smart contracts?
Solidity is an object-oriented programming language for writing smart contracts. It is used for implementing smart contracts on various blockchain platforms.
Q:17. Smart contract is part of blockchain?
Smart contracts use blockchain technology to verify, validate, capture and enforce agreed-upon terms between multiple parties.
Q:18. Smart Contract characteristics does not include:
2.Fast and cost effective
3.High degree of accuracy
▪ they’re self-verifying due to automated possibilities;
▪ they’re self-enforcing when the rules are met at all stages
Q:19. Smart contract properties not available in traditional contracts
4.All of the above.
Smart contracts have been making waves since the inception of the problem with traditional contracts
Q:20. Which of these are smart contract platforms?
4.All of the above
The smart contract platforms outperforming it included Ethereum (ETH), Polkadot (DOT), Cardano (ADA).
Q:21. Smart contracts have disadvantages like
1.Dependency on programmer
4.All of the above
Weak legal regulation of smart contracts work; The necessity to address the issue of transaction processing speed and scalability in blockchain technology.
Q:22. When a record is submitted in a blockchain, how can you alter it?
1.a. You need the public and private key to modify the record
2.b. Once submitted, records cannot be altered
3.c. Only a miner has the right to modify a record in a certain timeframe
4.d. Only smart contracts have the right to modify the record.
records are submitted on a blockchain, can they be altered? Yes – the parties can go back in and alter them at any time.
Q:23. In case of blockchain, at any point of time consumer, retailers can trace the product
the product on a trip through the supply chain in real time. Blockchain enables the deal to occur without any telephone call or orde
Q:24. Blockchain technology has made decentralized marketplaces possible. What is a benefit of a decentralized marketplace?
1.It is based on open-source technology, so it can be used without any investment.
2.It is not under a paid license to operate and therefore it is managed better.
3.It is relatively cheap due to the use of cryptocurrency and is very accessible.
4.It is tamper-proof, resilient to being shut down and trustworthy due to smart contracts.
Decentralized marketplaces using the blockchain as a foundational block are a … Sellers benefit because the marketplace offers product listings at no marginal.
Q:25. How does blockchain improve supply chains?
1.By automatically creating trade agreements between two parties
2.By creating safe centralized marketplaces to trade goods on
3.By stabilizing the national currencies of the countries involved
4.By transferring tokenized ownership through a software system
Blockchain can drive increased supply chain transparency to help reduce fraud for high value goods such as diamonds and pharmaceutical drugs.
Q:26. How does blockchain technology benefit the insurance industry?
1.By avoiding compliance requirements of national authorities, which reduces overhead
2.By ensuring accuracy of data and automating micro insurances, which reduces costs
3.By introducing flexible premiums to be paid by customers, which increases profits
4.By setting up a digital mode of payment, which simplifies claims settlement
Blockchain helps reduce administrative costs through automated verification of claims/payments data from third parties.
Q:27. Smart contracts are of no use in case of supply chain use case of blockchain
Yes, contracts are of no use in case of supply chain use case of blockchain.
Q:28. Which industry is not a possible use case for blockchain?
4.None of the above
The future of blockchain is near & banking isn’t the only industry affected. … Ultimately, the use cases for a transparent, verifiable register of transaction data are … Blockchain technology has the potential to streamline parts inventory.
Q:29. For government, the activity which is not possible with blockchain?
4.All of the above is possible
For government, every activity is possible with blockchain.
Q:30. ______________ blockchain is a blockchain that is run by a group.
Blockchain technology is most simply defined as a decentralized, distributed ledger that … When we create a document and share it with a group of people.
Q:31. ________________ is the first state to implement blockchain for land records.
the Indian state of Andhra Pradesh is in the process of adopting blockchain to prevent tampering of land records.
Q:32. The expected investment in 2020 on blockchain is around
As a result the global blockchain market size is expected to expand from USD 3.0 billion in 2020