1.
Which of the following statements regarding the features of blockchain technology are correct?
- Records stored in the database may be made visible to relevant stakeholders without risk of alteration.
- Copies of the entire database are stored on multiple computers on a network, syncing within seconds.
- Consortium blockchain is a blend of public and private blockchains allowing selective data access.
- Mathematical algorithms make it impossible to change or delete any data once recorded and accepted.
Select the answer using the code given below:
A
1 and 3
B
2 and 4 only
C
1, 2 and 4
D
1 and 4 only
View Answer
Correct Answer: A — 1 and 3
Explanation:
Statement 1 is accepted as a valid blockchain feature. Statement 2 is rejected because synchronization "within seconds" is too absolute for distributed blockchain systems. Statement 3 is accepted because consortium blockchains are allowing selective access across a grouped control structure. Statement 4 is rejected because "impossible" is considered too strong; data alteration is computationally difficult, not logically impossible.