Elasticsearch 7 and Elastic Stack - In Depth and Hands On! - JavaScript Object Notation (JSON) Search In-Depth

The video tutorial explains the use of request body search in Elasticsearch, focusing on JSON request structures, the differences between queries and filters, and the application of Boolean logic. It covers various types of filters and queries, such as range, term, and exists filters, and provides practical examples to demonstrate how these concepts work in action.

What is the primary purpose of using a request body search in Elasticsearch?

• To update documents in Elasticsearch

• To send XML requests to Elasticsearch

• To retrieve data without any search criteria

• To perform searches using JSON requests

Which of the following is true about GET requests in Elasticsearch?

• GET requests are faster than POST requests

• GET requests can legally include a body

• GET requests are only used for updating data

• GET requests cannot have a body

In Elasticsearch, when should you use a filter instead of a query?

• When you need to update documents

• When you want to perform a binary operation

• When you want to delete documents

• When you need to sort results by relevance

What does the 'must' clause in a Boolean query signify?

• A NOT relationship

• A XOR relationship

• An OR relationship

• An AND relationship

Which filter would you use to check if a field exists in a document?

• Missing filter

• Term filter

• Exists filter

• Range filter

What is the purpose of a term filter in Elasticsearch?

• To update a document's field

• To perform a full-text search

• To filter documents by an exact value

• To match a field to a list of values

Which query type would you use to search multiple fields at once?

• Multi-match query

• Term query

• Bool query

• Match query

How does a bool query differ from a bool filter?

• A bool query updates documents

• A bool query deletes documents

• A bool query filters results by relevance

• A bool query scores results by relevance

What is the default behavior of a match_all query?

• It returns documents with errors

• It returns only filtered results

• It returns no results

• It returns all documents

Which of the following is NOT a type of filter in Elasticsearch?

• Range filter

• Exists filter

• Update filter

• Term filter