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Sesion 13 HT Blockchain

Sesion 13 HT Blockchain

Assessment

Presentation

Science

12th Grade

Practice Problem

Medium

Created by

Diego Valera

Used 1+ times

FREE Resource

28 Slides • 13 Questions

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Multiple Choice

What is blockchain?

1

It is a centralized database that stores information.

2

It is a technology that allows the decentralized storage of data in interconnected blocks.

3

It is a software exclusive to banks.

10

Multiple Select

How does blockchain technology work?

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The data is stored on a single server.

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Only administrators can see the data.

3

Each transaction is recorded in a block and linked to previous blocks, forming a chain.

11

Multiple Choice

What is a cryptocurrency?

1
A cryptocurrency is a physical coin used for transactions.
2
A cryptocurrency is a digital currency that uses cryptography and operates on a decentralized network.
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A cryptocurrency is a type of stock traded on the stock market.
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A cryptocurrency is a government-issued currency that is backed by gold.

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Multiple Choice

How is information secured on a blockchain?

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Information is secured on a blockchain through physical locks and keys.
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Data is stored in a central server for easy access.
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Blockchain security relies solely on user passwords.
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Information is secured on a blockchain through cryptographic hashing, consensus mechanisms, and decentralized storage.

13

Multiple Choice

What does "mining" mean in the context of blockchain?

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Mining refers to the process of creating new cryptocurrencies without validation.
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Mining is the act of trading cryptocurrencies on exchanges.
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Mining involves storing data on a centralized server.
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Mining in blockchain is the process of validating transactions and adding them to the blockchain ledger.

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Multiple Choice

Which of the following statements about blockchain is correct?

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Blockchain is a centralized database managed by a single entity.
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Blockchain transactions are always anonymous and untraceable.
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Blockchain technology is primarily used for storing large files.
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Blockchain is a decentralized and distributed digital ledger technology.

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Multiple Choice

What is one of the main characteristics of blockchain?

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It is public and transparent

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It is slow

3

It is private

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Multiple Choice

What is a "token" in the context of blockchain?

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A physical object

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A banknote

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A type of access or unit of digital value

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Multiple Choice

Which of the following is an advantage of blockchain?

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Improved security

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Easy to modify

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Requires intermediaries

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Multiple Choice

What is a digital wallet?

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A digital wallet is a type of cryptocurrency.
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A digital wallet is a bank account for storing cash.
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A digital wallet is a software application for storing and managing payment information and personal data.
4
A digital wallet is a physical card used for transactions.

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Multiple Choice

Who can see transactions on a public blockchain?

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Transactions are visible only to blockchain miners.
2
Only government agencies can see transactions.
3
Only the transaction sender and receiver can see transactions.
4
Anyone can see transactions on a public blockchain.

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Multiple Choice

Blockchain is a centralized database.

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True

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False

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Multiple Choice

Each block in a blockchain contains a set of transactions.

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True

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False

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