Science & Technology2026
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:
Explanation
The correct option is indeed 1, 2, and 4.
- Statement 1 is accurate as blockchain technology allows for transparency where records can be shared among stakeholders while ensuring immutability, as the data cannot be altered once it is confirmed.
- Statement 2 is also correct, as blockchain operates on a decentralized network where the entire ledger is replicated across all nodes, facilitating real-time updates and synchronizations.
- Statement 3, while partially true about consortium blockchains allowing selective access, may be considered less universally applicable without further context, as it focuses specifically on hybrid models rather than the core features of blockchain itself.
- Lastly, statement 4 holds firm, as blockchain uses cryptographic hashing and consensus mechanisms that render retroactive changes nearly impossible, thus reinforcing the integrity of recorded data.
In summary, these features align with the principles of data integrity, transparency, and decentralization that are foundational to blockchain technology and are essential knowledge for civil service aspirants studying contemporary digital governance issues.