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1

What are the three primary properties of blockchain technology?

A
Decentralisation, transparency and immutability
B
Decentralisation, transparency and mutability
C
Centralisation, transparency and immutability
D
Centralisation, transparency and mutability
2

Which of the following statements about decentralisation is correct?

A
A blockchain stores information on a single server.
B
A blockchain does not store information on a single server.
C
Information can be sent from one party to another via a third party.
D
A blockchain system cannot operate when some of its parts are receiving software upgrades.
3

Which of the following statements about transparency is correct?

A
During data transmission, a person’s real identity is not secure.
B
During data transmission, a person’s real identity is secure.
C
During data transmission, people cannot see the actions being performed by their public addresses.
D
Due to the high transparency of the blockchain system, a user’s privacy is not secure.
4

Which of the following statements about immutability is correct?

A
Once something has been entered onto a blockchain, it can be tampered with at any time.
B
Once something has been entered onto the blockchain, it cannot be tampered with.
C
Even if a user changes his or her input, no change will be reflected in the blockchain system.
D
Data stored in a blockchain can be easily altered.
5

Which of the following statements about using a blockchain for data management is correct?

A
A data management system using a blockchain can help to protect trusted information and build networked services.
B
A data management system using a blockchain cannot help to protect trusted information or build networked services.
C
A data management system using a blockchain requires NGOs to develop a small network of users for more centralised data.
D
A data management system using a blockchain does not require NGOs to pay attention to the consistency of information entering the database.
Please answer all the questions above to proceed