Types of Node Failures and Consensus in Distributed Systems
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Questions and Answers

In the Chord DHT, what does a peer compute first when joining the network?

  • The ids of all other peers
  • Its successor list
  • Its finger table
  • Its own id (correct)

    • Which peer has authority over the id 3 in the given example?

  • Peer 2
  • Peer 4 (correct)
  • Peer 6
  • Peer 3

    • What is the key step a new peer takes after computing its id in Chord?

  • Ask any peer who has authority over its id (correct)
  • Request to be added to the successor list
  • Broadcast its id to all peers
  • Compute its finger table

    • In the Paxos consensus algorithm, what is the role of the leader?

    <p>Propose values and coordinate responses</p> Signup and view all the answers

    What is a key challenge addressed by distributed hash tables like Chord?

    <p>Providing an efficient lookup for key-value pairs</p> Signup and view all the answers

    In Bitcoin, what is the main purpose of mining?

    <p>To generate new bitcoins and secure the network</p> Signup and view all the answers

    What is a key property achieved by consensus protocols like Paxos and Raft?

    <p>Consistency</p> Signup and view all the answers

    How do DHTs like Chord typically handle node failures and departures?

    <p>By using replication and re-hashing keys</p> Signup and view all the answers

    What is the $2^{160}$ in the context of the Bitcoin protocol?

    <p>The number of possible Bitcoin addresses</p> Signup and view all the answers

    In an eventually consistent system, what does 'eventual' refer to?

    <p>Reads will eventually return the latest value after some delay</p> Signup and view all the answers

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