
Exploring Cryptocurrency and Blockchain
Authored by S.Saranya Pauline
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University

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is cryptocurrency mining?
A method of creating new cryptocurrencies without any technology.
Cryptocurrency mining is the process of validating transactions and adding them to a blockchain, using computational power to solve complex problems.
A way to store cryptocurrencies securely offline.
The process of trading cryptocurrencies on exchanges.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does proof of work differ from proof of stake?
Proof of Stake requires more energy than Proof of Work.
Proof of Work is based on random selection of validators.
Proof of Work is faster than Proof of Stake.
Proof of Work relies on computational power, while Proof of Stake relies on the amount of cryptocurrency held.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a smart contract?
A smart contract is a physical document signed by both parties.
A smart contract is a type of insurance policy.
A smart contract is a legal agreement that requires a notary public.
A smart contract is a self-executing contract with the terms written into code on a blockchain.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the benefits of using smart contracts?
Benefits of using smart contracts include automation, trust, transparency, reduced fraud, lower costs, and increased efficiency.
Higher transaction fees
Increased manual oversight
Limited accessibility
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of cryptography in blockchain security?
Cryptography is primarily for user interface design in blockchain.
Cryptography eliminates the need for consensus mechanisms.
Cryptography is used to speed up transaction processing.
Cryptography ensures data integrity, confidentiality, and authenticity in blockchain security.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are common attacks on blockchain networks?
Malware infections
Phishing attacks
Double spending, 51% attacks, Sybil attacks, smart contract vulnerabilities.
DDoS attacks
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a cryptocurrency wallet?
A cryptocurrency wallet is a digital tool for storing, sending, and receiving cryptocurrencies.
A cryptocurrency wallet is a physical device for storing cash.
A cryptocurrency wallet is a software used for mining cryptocurrencies.
A cryptocurrency wallet is a type of bank account for traditional currencies.
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