Elasticsearch quiz

Test your Elasticsearch knowledge with a free interactive quiz — 20 questions with answers and explanations. No signup needed to play.

What is a general consideration when choosing the number of primary shards for a new Elasticsearch index?

1. What is a general consideration when choosing the number of primary shards for a new Elasticsearch index?
2. What is an Elasticsearch "alias," and how is it commonly used to enable zero-downtime reindexing?
3. What is the difference between a `text` field type and a `keyword` field type in an Elasticsearch mapping?
4. What is Elasticsearch, at a high level?
5. What is the Elasticsearch Query DSL (Domain-Specific Language)?
6. What is a "replica" shard, and what purpose does it serve?
7. What does a `bool` query with `must`, `should`, `must_not`, and `filter` clauses allow you to express in Elasticsearch?
8. What is a "shard" in Elasticsearch, and why does an index get divided into shards?
9. What is the purpose of an "analyzer" in Elasticsearch text processing?
10. What is "mapping" in Elasticsearch?
11. What is a "document" in Elasticsearch?
12. What is the general tradeoff of Elasticsearch's eventual consistency model for newly indexed documents becoming searchable?

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