Blockchain 101

Blockchain 101

12th Grade

15 Qs

quiz-placeholder

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Blockchain 101

Blockchain 101

Assessment

Quiz

Computers

12th Grade

Practice Problem

Easy

Created by

David Turner

Used 3+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a blockchain?

A type of cryptocurrency

A centralized database

A distributed and immutable ledger

A cloud storage service

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a block in a blockchain contain?

User passwords and private keys

A list of transactions, a timestamp, and a hash

Physical hardware data

Bank account details

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of cryptography in blockchain?

To encrypt the entire blockchain

To ensure data privacy and secure transactions

To mine cryptocurrency

To create internet protocols

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a key feature of blockchain that ensures security?

Centralized control

Tamper-resistant ledger

High-speed processing

Unlimited storage capacity

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the consensus mechanism in blockchain?

A method for converting cryptocurrencies

A process by which participants agree on the state of the ledger

A protocol for encrypting data

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a popular consensus mechanism in blockchain?

Data Validation Protocol (DVP)

Proof of Work (PoW)

Transaction Evaluation System (TES)

Hash Authorization Protocol (HAP)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a "smart contract"?

A contract with legal backing

A self-executing agreement with terms directly written into code

A document signed digitally

An AI-powered legal document

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