Certified Blockchain Developer – Hyperledger (CBDH) — Question 1

Level DB is the default database for Hyperledger Fabric and is particularly appropriate when ledger states comprise what type of data?

Answer options

• A. Complex key-value pairs
• B. Rich Queries
• C. JSON data pairs
• D. Simple key-value pairs

Correct answer: D

Explanation

The correct answer is D, as Level DB is optimized for storing simple key-value pairs which allows for efficient data retrieval and storage. Options A, B, and C involve more complex data structures or queries that are not ideal for Level DB's design, which focuses on simpler data models.