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Blockchain Security: Historical Evolution and Milestones

Description: Blockchain Security: Historical Evolution and Milestones
Number of Questions: 15
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Tags: blockchain security history milestones
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Which year did Satoshi Nakamoto publish the whitepaper titled "Bitcoin: A Peer-to-Peer Electronic Cash System"?

  1. 2007

  2. 2008

  3. 2009

  4. 2010


Correct Option: B
Explanation:

Satoshi Nakamoto published the whitepaper titled "Bitcoin: A Peer-to-Peer Electronic Cash System" in October 2008.

What was the name of the first blockchain-based cryptocurrency?

  1. Ethereum

  2. Litecoin

  3. Dogecoin

  4. Bitcoin


Correct Option: D
Explanation:

Bitcoin was the first blockchain-based cryptocurrency, created by Satoshi Nakamoto in 2009.

Which consensus algorithm was initially used by Bitcoin?

  1. Proof-of-Work

  2. Proof-of-Stake

  3. Delegated Proof-of-Stake

  4. Practical Byzantine Fault Tolerance


Correct Option: A
Explanation:

Bitcoin initially used the Proof-of-Work consensus algorithm to secure its network.

When did the first major security breach of a blockchain network occur?

  1. 2010

  2. 2011

  3. 2012

  4. 2013


Correct Option: B
Explanation:

The first major security breach of a blockchain network occurred in 2011, when the Mt. Gox exchange was hacked and 850,000 bitcoins were stolen.

What was the name of the first blockchain-based smart contract platform?

  1. Ethereum

  2. EOS

  3. Tron

  4. Cardano


Correct Option: A
Explanation:

Ethereum was the first blockchain-based smart contract platform, launched in 2015.

Which year did the DAO hack occur, resulting in the loss of millions of dollars worth of cryptocurrency?

  1. 2015

  2. 2016

  3. 2017

  4. 2018


Correct Option: B
Explanation:

The DAO hack occurred in 2016, resulting in the loss of millions of dollars worth of cryptocurrency.

What was the name of the first blockchain-based decentralized autonomous organization (DAO)?

  1. The DAO

  2. MakerDAO

  3. Compound

  4. Aave


Correct Option: A
Explanation:

The DAO was the first blockchain-based decentralized autonomous organization (DAO), launched in 2016.

When did the first major blockchain hard fork occur?

  1. 2016

  2. 2017

  3. 2018

  4. 2019


Correct Option: B
Explanation:

The first major blockchain hard fork occurred in 2017, when Bitcoin Cash (BCH) forked from Bitcoin (BTC).

Which year did the cryptocurrency market experience a significant bull run, with many cryptocurrencies reaching all-time highs?

  1. 2017

  2. 2018

  3. 2019

  4. 2020


Correct Option: A
Explanation:

The cryptocurrency market experienced a significant bull run in 2017, with many cryptocurrencies reaching all-time highs.

What was the name of the first blockchain-based stablecoin?

  1. Tether (USDT)

  2. USD Coin (USDC)

  3. Binance USD (BUSD)

  4. Dai (DAI)


Correct Option: A
Explanation:

Tether (USDT) was the first blockchain-based stablecoin, launched in 2014.

Which year did the cryptocurrency market experience a significant bear market, with many cryptocurrencies losing a significant portion of their value?

  1. 2018

  2. 2019

  3. 2020

  4. 2021


Correct Option: A
Explanation:

The cryptocurrency market experienced a significant bear market in 2018, with many cryptocurrencies losing a significant portion of their value.

What was the name of the first blockchain-based decentralized exchange (DEX)?

  1. Uniswap

  2. PancakeSwap

  3. SushiSwap

  4. 1inch


Correct Option: A
Explanation:

Uniswap was the first blockchain-based decentralized exchange (DEX), launched in 2018.

Which year did the cryptocurrency market experience a resurgence, with many cryptocurrencies reaching new all-time highs?

  1. 2019

  2. 2020

  3. 2021

  4. 2022


Correct Option: C
Explanation:

The cryptocurrency market experienced a resurgence in 2021, with many cryptocurrencies reaching new all-time highs.

What was the name of the first blockchain-based non-fungible token (NFT) marketplace?

  1. OpenSea

  2. Rarible

  3. SuperRare

  4. Nifty Gateway


Correct Option: A
Explanation:

OpenSea was the first blockchain-based non-fungible token (NFT) marketplace, launched in 2017.

Which year did the cryptocurrency market experience a significant downturn, with many cryptocurrencies losing a significant portion of their value?

  1. 2022

  2. 2023

  3. 2024

  4. 2025


Correct Option: A
Explanation:

The cryptocurrency market experienced a significant downturn in 2022, with many cryptocurrencies losing a significant portion of their value.

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