Blockchain & Bitcoin Exam
Questions With All Correct Answers
2025 Marking Scheme
How Did the Blockchain Start? - CORRECT ANSWER-2008; A technical paper
was posted on the internet by Satoshi Nakamoto titled
- Bitcoin: A Peer-to-Peer Electronic Cash System
Described a system of cryptocurrency that was not backed by any government or
based on any existing currency
Satoshi Nakamoto is a pseudonym, so the identity of the true creator is unknown
What is Bitcoin? - CORRECT ANSWER-A form of digital currency, created &
held electronically.
- no one controls it
, They are not printed
- produced by people and more & more businesses
- they use software that solves mathematical problems, which upon completion
yields a Bitcoin
5 Basic Principles Underlying the Technology - CORRECT ANSWER-1)
Transaction Record (distributed database)
2) Peer-to-Peer (P2P)
3) Transparency with Pseudonymous Titles
4) Irreversibility (with computational proof)
5) Computer Logic
Distributed Database - CORRECT ANSWER-Each party on a blockchain has
access to the entire database and its *complete* history
No single party controls the data or the information
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law
Questions With All Correct Answers
2025 Marking Scheme
How Did the Blockchain Start? - CORRECT ANSWER-2008; A technical paper
was posted on the internet by Satoshi Nakamoto titled
- Bitcoin: A Peer-to-Peer Electronic Cash System
Described a system of cryptocurrency that was not backed by any government or
based on any existing currency
Satoshi Nakamoto is a pseudonym, so the identity of the true creator is unknown
What is Bitcoin? - CORRECT ANSWER-A form of digital currency, created &
held electronically.
- no one controls it
, They are not printed
- produced by people and more & more businesses
- they use software that solves mathematical problems, which upon completion
yields a Bitcoin
5 Basic Principles Underlying the Technology - CORRECT ANSWER-1)
Transaction Record (distributed database)
2) Peer-to-Peer (P2P)
3) Transparency with Pseudonymous Titles
4) Irreversibility (with computational proof)
5) Computer Logic
Distributed Database - CORRECT ANSWER-Each party on a blockchain has
access to the entire database and its *complete* history
No single party controls the data or the information
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law
