Elasticsearch 101

This video tutorial introduces Elasticsearch, demonstrating how to use its interactive console for running REST API calls. It covers checking cluster health, managing nodes, creating indices, and inserting data. The tutorial also explains querying and updating data, and concludes with a preview of using Java to integrate with Elasticsearch.

What tool can be used to run REST API calls if you have Elasticsearch on your local machine?

• Kibana

• Bonsai

• Postman

• Elastic Console

What information can you obtain about an Elasticsearch cluster's health?

• Cluster status and node count

• Number of documents

• Query performance

• Index size

What is the purpose of creating an index in Elasticsearch?

• To store data

• To delete data

• To update data

• To query data

What response code indicates that an index has been successfully created in Elasticsearch?

• 404

• 403

• 500

• 200

How can you format documents for insertion into an Elasticsearch index?

• XML

• CSV

• JSON

• YAML

What happens if you try to insert a document with an existing ID in Elasticsearch?

• It updates the existing document

• It creates a duplicate document

• It deletes the existing document

• It throws an error

What command is used to delete an index in Elasticsearch?

• Drop

• Delete

• Erase

• Remove