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Blockchain and it's Applications

Authored by Vaibhav Research)

Computers

University

Used 2+ times

Blockchain and it's Applications
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10 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

1. What is a blockchain?

A type of computer virus

A centralized database

A distributed and immutable ledger

A cryptocurrency wallet

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the most well-known application of blockchain technology?

Cloud computing

Internet of Things

Bitcoin

Email

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In blockchain, what is the purpose of a nonce?

To store user information

To identify a miner

To vary the hash result during mining

To reduce network latency

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a smart contract do?

Automatically executes terms of an agreement

Repairs blocks in a chain

Encrypts emails

Monitors social media

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which consensus mechanism is used by Bitcoin?

Practical Byzantine Fault Tolerance (PBFT)

Proof of Work (PoW)

Delegated Proof of Stake (DPoS)

Proof of Stake (PoS)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a “block” in blockchain?

A cryptocurrency unit

A virus that attacks miners

A security vulnerability

A group of transactions bundled together

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which language is commonly used to write smart contracts on Ethereum?

Python

Rust

Golang

Solidity

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