File Info
| Exam | BTA Certified Blockchain Developer - Hyperledger |
| Number | CBDH |
| File Name | Blockchain.CBDH.BrainDumps.2019-04-02.65q.tqb |
| Size | 992 KB |
| Posted | Apr 02, 2019 |
| Download | Blockchain.CBDH.BrainDumps.2019-04-02.65q.tqb |
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Demo Questions
Question 1
When creating a network according to an organization's structure and also bootstrap a channel what are the following artifacts we would need to generate?
- Genesis Block, License File and Anchor Peer Configs for each organization.
- Genesis Block, ledger Configuration and Anchor Peer Configs for each organization.
- Genesis Block, Channel Configuration and Anchor Peer Configs for each organization.
- Genesis Block, Channel Configuration and Anchor MSP Configs for each organization.
Correct answer: C
Explanation:
To create a network according to an organization's structure, and to bootstrap a channel, we will need to generate the following artifacts: A genesis block, containing organization-specific certificates that serve to initialize the Fabric blockchain. Channel configuration information. Anchor peer configurations for each organization. An anchor peer serves as a fulcrum within an organization, for cross-organization ledger syncing using the Fabric gossip protocol. To create a network according to an organization's structure, and to bootstrap a channel, we will need to generate the following artifacts: A genesis block, containing organization-specific certificates that serve to initialize the Fabric blockchain. Channel configuration information. Anchor peer configurations for each organization. An anchor peer serves as a fulcrum within an organization, for cross-organization ledger syncing using the Fabric gossip protocol.
Question 2
Blockchain services consists of three major components.
What are they? (Select three.)
- Consensus Manager
- Distributed Ledger
- Peer to Peer Protocol
- Reputation Manager
- 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 3
The gossip data dissemination protocol performs which three functions? (Choose three.)
- Manages peer discovery and channel membership
- Disseminates ledger data across all peers on the channel
- Manages channel membership only
- Sync ledger state across all peers on any channel
- Sync ledger state across all peers on the channel
- 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
