ICT C3.5 Year 11 2023 Past Paper

A bank network is a type of _________ network.

• Distributed

• Centralised

• Decentralised

• Metropolitan

A record of anything that has been exchanged with something else is known as:

• A Record

• A Transaction

• A Block

• A Hash

Transactions on a blockchain cannot be deleted or modified in any way. This is what we mean when we say that a blockchain is:

• Centralised

• Distributed

• Immutable

• Decentralised

A group of records and transactions is known as:

• A Cryptocurrency

• A Bitcoin

• A Blockchain

• A Ledger

Miners are rewarded for successfully mining:

• A Block

• A Chain

• A Hash

• A Bitcoin

A blockchain is good at:

• Transparency

• Authentication

• Auditing

• All of the above

What is a blockchain?

• A series of blocks chained together in a line

• A method of selling bitcoin

• A distributed ledger that records transactions

• A centralised ledger

Each block on a blockchain contains:

• One thing – Data

• Two things – Data and a Hash

• Three things – Data, a Hash and the Hash of the next block

• Three things – Data, a Hash and the Hash of the previous block

What is a Hash?

• It identifies a user and all of the contents, and it is always unique, just as a fingerprint

• It identifies a block and all of its contents, and it is always unique, just as a fingerprint

• It identifies a block and all of its contents, and it is not unique, unlike a fingerprint

• It does not identify a block, but it identifies all of its contents, and it is not unique, unlike a fingerprint

The first block of a blockchain is known as:

• the Collins block

• the Starting block

• the Genesis block

• the Exodus block