Download Blockchain.CBDH.PracticeTest.2019-04-09.64q.tqb

Vendor: Blockchain
Exam Code: CBDH
Exam Name: BTA Certified Blockchain Developer - Hyperledger
Date: Apr 09, 2019
File Size: 987 KB

Demo Questions

Question 1
Blockchain services consists of three major components.  
What are they? (Select three.)
  1. Consensus Manager
  2. Distributed Ledger
  3. Peer to Peer Protocol
  4. Reputation Manager
  5. Membership Services
Correct answer: ABC
Explanation:
1. P2P Protocol is implemented over HTTP/2 standards and uses Google RPC.. P2P components define messages used by peer nodes, from point to point to multicast. 2. Distributed Ledger manages the world state and the transaction log in the blockchain. 3. Consensus Manager defines the interface between the consensus algorithm and the other Hyperledger components.
1. P2P Protocol is implemented over HTTP/2 standards and uses Google RPC.. P2P components define messages used by peer nodes, from point to point to multicast. 2. Distributed Ledger manages the world state and the transaction log in the blockchain. 3. Consensus Manager defines the interface between the consensus algorithm and the other Hyperledger components.
Question 2
The gossip data dissemination protocol performs which three functions? (Choose three.)
  1. Manages peer discovery and channel membership
  2. Disseminates ledger data across all peers on the channel
  3. Manages channel membership only
  4. Sync ledger state across all peers on any channel
  5. Sync ledger state across all peers on the channel
  6. Manages peer discovery only
Correct answer: ABE
Explanation:
Gossip Protocol The gossip data dissemination protocol performs three functions Manages peer discovery and channel membership Disseminates ledger data across all peers on the channel Syncs ledger state across all peers on the channel.  Reference: https://hyperledger-fabric.readthedocs.io/en/v1.1.0-alpha/gossip.html
Gossip Protocol The gossip data dissemination protocol performs three functions Manages peer discovery and channel membership Disseminates ledger data across all peers on the channel Syncs ledger state across all peers on the channel.  
Reference: https://hyperledger-fabric.readthedocs.io/en/v1.1.0-alpha/gossip.html
Question 3
What Hyperledger sponsored tool is a new open-source application development framework, which simplifies the creation of Hyperledger Fabric blockchain applications, thus reducing the time and complexity of development.  
The tool aims at helping users to create blockchain applications based on Hyperledger Fabric without needing to know the low-level (Go Programming) details involved in blockchain networks?
  1. Hyperledger Quilt
  2. Hyperledger Composer
  3. Hyperledger Explorer
  4. Hyperledger Cello
Correct answer: B
Explanation:
There is a new open-source application development framework, which simplifies the creation of Hyperledger Fabric blockchain applications, thus reducing the time and complexity of development. The tool aims at helping users to create blockchain applications based on Hyperledger Fabric without needing to know the low-level (Go Programming) details involved in blockchain networks.
There is a new open-source application development framework, which simplifies the creation of Hyperledger Fabric blockchain applications, thus reducing the time and complexity of development. The tool aims at helping users to create blockchain applications based on Hyperledger Fabric without needing to know the low-level (Go Programming) details involved in blockchain networks.
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