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BTA Certified Blockchain Developer – Hyperledger Questions 71–75 (page: 16)

Updated On: 9-Feb-2026

There are currently three supported ordering services in Hyperledger Fabric and one service is used by developers experimenting with Hyperledger Fabric networks.
What service is this?

  1. PoET
  2. Kafks
  3. SOLO
  4. SBFT
  5. BFT

Answer(s): C

Explanation:

SOLO is the Hyperledger Fabric ordering mechanism most typically used by developers experimenting with Hyperledger Fabric networks. SOLO involves a single ordering node and Note Development Only.



Hyperledger Explorer is what type of web application? (Select two.)

  1. A Nodejs based web app which runs on Node/Express
  2. A JS based web app which runs on Node/ExpressJS
  3. Uses PostGres SQL as the backend database
  4. Uses MySQL as the backend database

Answer(s): A,D

Explanation:



Which Hyperledger tool provides an open source browser for viewing activity on the underlying blockchain network?

  1. Caliper
  2. Quilt
  3. Cello
  4. Explorer

Answer(s): D

Explanation:

Explorer can view, invoke, deploy or query blocks, transactions and associated data, network information, chain codes and transaction families, as well as other relevant information stored in the ledger. Powerful, easy-to-use, highly maintainable, open source browser for viewing activity on the underlying blockchain network.



In Hyperledger Fabric there is three types of chaincode. (Select three.)

  1. Private
  2. Hybrid
  3. Access Controlled
  4. Consortium
  5. Public
  6. Compliant

Answer(s): A,C,E



When reviewing chaincode you see a function called "ChaincodeStubInterface" in the program.
What does this function do?

  1. It is used to access the ledger.
  2. It is used to access the chaincode interface.
  3. It is used to access the ledger and modify the ledger.
  4. It is used to stop the chaincode interface.

Answer(s): C



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