Podcast
Questions and Answers
What is a key benefit of state machine replication-based consensus in a permissioned blockchain?
What is a key benefit of state machine replication-based consensus in a permissioned blockchain?
- Improved security against malicious nodes
- Higher energy consumption
- Enhanced scalability
- No need to spend power, time, or bitcoin (correct)
What is the minimum number of nodes required to achieve consensus in a Byzantine Generals Problem with one commander, one good lieutenant, and one faulty lieutenant?
What is the minimum number of nodes required to achieve consensus in a Byzantine Generals Problem with one commander, one good lieutenant, and one faulty lieutenant?
- 5
- 3
- 6
- 4 (correct)
Which of the following statements is true about Byzantine Dissemination Quorum?
Which of the following statements is true about Byzantine Dissemination Quorum?
- Quorums can be dynamically adjusted based on network conditions
- There is always a quorum available with no faulty replicas
- Any two quorums have at least one correct replica in common (correct)
- Quorums are only required for asynchronous networks
What is the primary purpose of consensus in a distributed system?
What is the primary purpose of consensus in a distributed system?
Which of the following is NOT a synchronous consensus technique?
Which of the following is NOT a synchronous consensus technique?
What happens to a system using the BFT model when one system is permanently failed due to a hardware fault and another system is compromised by an attacker?
What happens to a system using the BFT model when one system is permanently failed due to a hardware fault and another system is compromised by an attacker?
In the Paxos protocol, what is the purpose of the PROPOSE-ACCEPT phase?
In the Paxos protocol, what is the purpose of the PROPOSE-ACCEPT phase?
What is a characteristic of the Paxos protocol?
What is a characteristic of the Paxos protocol?
What is a characteristic of a closed network in the context of distributed consensus?
What is a characteristic of a closed network in the context of distributed consensus?
What is the reason for using state machine replication-based consensus in permissioned blockchains?
What is the reason for using state machine replication-based consensus in permissioned blockchains?
Which of the following is a benefit of using state machine replication-based consensus over traditional consensus protocols?
Which of the following is a benefit of using state machine replication-based consensus over traditional consensus protocols?
What is the primary advantage of using RAFT protocol in distributed consensus?
What is the primary advantage of using RAFT protocol in distributed consensus?
What is the key property of quorums in Byzantine dissemination?
What is the key property of quorums in Byzantine dissemination?
What is the minimum number of replicas required to reach consensus in the presence of Byzantine faults?
What is the minimum number of replicas required to reach consensus in the presence of Byzantine faults?
What is the correct sequence of operations in the PBFT algorithm?
What is the correct sequence of operations in the PBFT algorithm?
What is the minimum quorum size required for PBFT to be safe in an asynchronous environment?
What is the minimum quorum size required for PBFT to be safe in an asynchronous environment?
What is the primary use of Hyperledger frameworks?
What is the primary use of Hyperledger frameworks?
How do Byzantine faults differ from crash faults?
How do Byzantine faults differ from crash faults?
