Elasticsearch 面试题与答案
问题 11. Explain the term 'Index' in Elasticsearch.
An index in Elasticsearch is a collection of documents that share a similar structure and are stored together for efficient searching.
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问题 12. What is a Document in Elasticsearch?
A document is the basic unit of information in Elasticsearch, represented in JSON format.
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问题 13. Differentiate between a Shard and a Replica in Elasticsearch.
A shard is a basic unit that stores data, while a replica is a copy of a shard for fault tolerance and scalability.
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问题 14. Explain the purpose of an Analyzer in Elasticsearch.
An analyzer is used to preprocess data during indexing and searching, including tokenization and stemming.
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问题 15. What is Inverted Index in Elasticsearch?
An inverted index is a data structure used to efficiently map terms to the documents containing them.
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