datastax cassandra certification dumps - Wikitechy https://www.wikitechy.com/interview-questions/tag/datastax-cassandra-certification-dumps/ Interview Questions Mon, 13 Sep 2021 11:42:50 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png datastax cassandra certification dumps - Wikitechy https://www.wikitechy.com/interview-questions/tag/datastax-cassandra-certification-dumps/ 32 32 What is the Cassandra coefficient ? https://www.wikitechy.com/interview-questions/cassandra/what-is-the-cassandra-coefficient/ https://www.wikitechy.com/interview-questions/cassandra/what-is-the-cassandra-coefficient/#respond Tue, 13 Jul 2021 05:12:36 +0000 https://www.wikitechy.com/interview-questions/?p=430

Cassandra coefficient:

  • The four components of the Cassandra Coefficient are
    1. The warning, the threat or risk in question,
    2. the decision makers or audience who must react,
    3. The predictor or possible Cassandra, and
    4. The critics who disparage or reject the warning.
  • The Cassandra coefficient is the framework and it offered as a tool and all decision-makers to separate a legitimate warning from a Chicken Little.

There is a lot of commonality amongst actual Cassandras.

  • Technical experts in their field,
  • Very driven by data,
  • First principle/orthogonal thinkers,
  • Have a high sense of personal management, and
  • Many of them had offputting identity / high tension
]]> https://www.wikitechy.com/interview-questions/cassandra/what-is-the-cassandra-coefficient/feed/ 0 What is a seed node in Apache Cassandra ? https://www.wikitechy.com/interview-questions/cassandra/what-is-a-seed-node-in-apache-cassandra/ https://www.wikitechy.com/interview-questions/cassandra/what-is-a-seed-node-in-apache-cassandra/#respond Tue, 13 Jul 2021 04:49:22 +0000 https://www.wikitechy.com/interview-questions/?p=413

Apache Cassandra seed node:

  • Seeds are used to discover the cluster in the start up period.
  • The seed node designation has no purpose other than bootstrapping the gossip process for new nodes joining the cluster.
  • Seed nodes could not be a single point of failure, nor they have do any other purpose in cluster operations except the bootstrapping of nodes.
  • In cluster formation, nodes are verify “join” and each other.
  • However, they do not join any node which respects the protocol.Risks:old partitioned replicas, different clusters, even malicious nodes, so on. So a cluster can be defined by some starting nodes contain at clear addresses and it can be reference for that cluster for any new nodes to join in trust-table way.
  • After some time the seed nodes can go away, then the cluster will keep on.
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