Blockchain Quiz

What is blockchain? (Grade 3 level)

• A type of technology that stores information across a network of computers.

• A type of dance popular in the 1980s.

• A type of sandwich made with bacon and lettuce.

• A type of fruit that grows on trees.

Explain blockchain in simple words. (Grade 3 level)

• A physical chain used to lock up digital information

• A game played with blocks and chains

• A type of chain made of blocks

• A digital ledger where information is stored in blocks that are linked together.

Can you give an example of how blockchain is used? (Grade 3 level)

• Cooking dinner

• Sending emails

• Playing video games

• Cryptocurrency transactions

How does blockchain work? (Grade 3 level)

• It uses paper and pencil to record transactions

• It relies on magic to store information

• It communicates with aliens to verify data

• It stores records in blocks linked together using cryptography.

Explain the process of adding a new block to the blockchain. (Grade 3 level)

• Verifying and validating transactions, creating a new block, and adding it to the existing chain

• Downloading the blockchain onto a computer

• Asking a friend to add the block for you

• Sending an email to the blockchain administrator

What is the role of miners in the blockchain network? (Grade 3 level)

• Selling cryptocurrency to investors

• Creating new computer games using blockchain technology

• Validating and adding new transactions to the blockchain

• Designing the layout of the blockchain website

What are the benefits of blockchain technology? (Grade 3 level)

• Secure and transparent transactions, decentralized system, reduced costs, and increased efficiency.

• Secure and transparent transactions, centralized system, reduced costs, and decreased efficiency.

• Unsecure and opaque transactions, centralized system, increased costs, and reduced efficiency.

• Increased security and transparency, centralized system, higher costs, and decreased efficiency.

How does blockchain technology ensure security? (Grade 3 level)

• By sharing all the information publicly with no encryption

• By allowing anyone to make changes to the data without verification

• By using cryptographic techniques and decentralized consensus

• By using a single centralized authority for decision making

Compare blockchain with traditional databases. (Grade 3 level)

• Blockchain is a physical storage device, while traditional databases are virtual.

• Blockchain is a new technology, while traditional databases are outdated.

• Blockchain is decentralized, while traditional databases are centralized.

• Blockchain is only used for financial transactions, while traditional databases are used for all types of data.

What are the advantages of using blockchain over traditional databases? (Grade 3 level)

• Blockchain is slower and less efficient than traditional databases

• Blockchain has limited security and transparency compared to traditional databases

• Blockchain is more centralized and prone to hacking compared to traditional databases

• Blockchain provides greater security, transparency, and decentralization compared to traditional databases.