Elasticsearch Interview Questions

Last Updated: Nov 10, 2023

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Elasticsearch Interview Questions For Freshers

What is the difference between Elasticsearch and traditional SQL databases?

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How does Elasticsearch handle data sharding?

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What is an inverted index in Elasticsearch?

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What is the purpose of the _source field in Elasticsearch?

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What query types are supported by Elasticsearch?

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How does Elasticsearch handle schema changes?

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What is a document in Elasticsearch?

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What is a term in Elasticsearch?

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How does Elasticsearch handle data replication?

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What is the role of analyzers in Elasticsearch?

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What is the purpose of tokenization in Elasticsearch?

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What is Elasticsearch?

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Elasticsearch Intermediate Interview Questions

Can you explain the indexing process in Elasticsearch?

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Explain the concept of a cluster in Elasticsearch.

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What is a shard in Elasticsearch? How does it differ from a node?

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How can you control relevance scoring in Elasticsearch?

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What are the different types of query clauses in Elasticsearch?

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Explain the concept of parent-child relationship in Elasticsearch.

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How does Elasticsearch handle distributed searching?

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What is the purpose of an aggregation in Elasticsearch?

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What is the role of the ingest node in Elasticsearch?

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How is data storage managed in Elasticsearch?

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What is the role of the refresh interval in Elasticsearch?

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Can you explain the concept of snapshots and restoring data in Elasticsearch?

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Explain the purpose of the search-as-you-type field type in Elasticsearch.

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Elasticsearch Interview Questions For Experienced

Explain the process of data pipeline transformation in Elasticsearch.

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How can you optimize Elasticsearch for high performance?

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Explain the concept of routing in Elasticsearch.

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What is the purpose of reverse nesting in Elasticsearch?

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How can you secure an Elasticsearch cluster?

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What are the different types of caches in Elasticsearch?

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How can you handle transactions in Elasticsearch?

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What is the purpose of the _routing field in Elasticsearch?

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Explain the concept of versioning in Elasticsearch.

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How can you perform complex aggregations in Elasticsearch?

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What is the role of a cluster coordinator in Elasticsearch?

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How can you perform A/B testing using Elasticsearch?

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What are the best practices for scaling an Elasticsearch cluster?

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What are some common analyzers used in Elasticsearch?

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How can you optimize Elasticsearch queries for faster performance?

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What are the limitations of Elasticsearch?

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How can you monitor the health of an Elasticsearch cluster?

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Explain the purpose of the Query DSL in Elasticsearch.

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What is the purpose of a tokenizer in Elasticsearch?

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How can you handle data backups in Elasticsearch?

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What is the role of the discovery module in Elasticsearch?

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How can you handle data rollups in Elasticsearch?

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Explain the purpose of a nested data type in Elasticsearch.

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How does Elasticsearch handle data recovery after a node failure?

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What are the different types of joins in Elasticsearch?

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How does Elasticsearch handle cross-cluster search?

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