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Free CBDH Exam Braindumps (page: 16)

Page 15 of 49
PDF with 195 Questions

What is provided by the Hyperledger Fabric to facilitate network communications?

  1. SDK
  2. API
  3. Golang
  4. Java
  5. Middleware

Answer(s): A

Explanation:

Hyperledger Fabric provides a Node.js and a Java SDK to facilitate network communications
functionality.



Voting-based algorithms are advantageous in that they provide a benefit but a tradeoff. (Select two.)

  1. Trade off between scalability and security.
  2. Better security due to node control.
  3. Low-latency finality.
  4. Trade off between scalability and performance.

Answer(s): C,D

Explanation:

Hyperledger makes use of the permissioned voting-based consensus from the pool of other consensus named the lottery-based consensus. (Kafka in Hyperledger Fabric Ordering Service) Voting-based algorithms are advantageous in that they provide low-latency finality. More Nodes = More Time to reach Consensus. Trade off between Scalability and Performance



Hyperledger Fabric is a blockchain implementation that is designed for deploying a modular and extensible architecture.
Which of the following is NOT true about the architecture of Hyperledger?

  1. It is modular and extensible
  2. It allows for interoperability
  3. It has a native cryptocurrency token
  4. It has a rich API development capacity

Answer(s): C

Explanation:

It has a modular subsystem design so that different implementations can be plugged in and implemented over time. Modular and extensible means modularity in all components of all frameworks, including: Consensus layer Smart contract layer Communication Layer Data Store Identity services (root of trust, to identify the participants).



Hyperledger Fabric Ledger has two parts. What are they?

  1. Stateless Data and Snapshots
  2. State Data and Transaction Logs
  3. State Data and Membership Logs
  4. Stateful Data and Membership Logs
  5. State data and Snapshots

Answer(s): B

Explanation:

Explanation
Representation of current state of the assets. Asset state data can be changed upon changes to the state of the data. · Transaction Logs: Record of all the transactions (in the order they are received) which modified the state data, and once the data is written it is immutable and cannot be changed.






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