[Solved] You need to create an Elasticsearch index named profiles with 1 shard and 1 replica. The index should have fields:... Which JSON correctly defines this index? | Elasticsearch

Elasticsearch - Index Management

You need to create an Elasticsearch index named profiles with 1 shard and 1 replica. The index should have fields: username (keyword), age (integer), and bio (text). Which JSON correctly defines this index?

A{ "settings": { "number_of_shards": 1, "number_of_replicas": 1 }, "mappings": { "properties": { "username": { "type": "keyword" }, "age": { "type": "integer" }, "bio": { "type": "text" } } } }

B{ "settings": { "shards": 1, "replicas": 1 }, "mappings": { "fields": { "username": "keyword", "age": "integer", "bio": "text" } } }

C{ "settings": { "number_of_shards": "one", "number_of_replicas": "one" }, "mappings": { "properties": { "username": { "type": "keyword" }, "age": { "type": "integer" }, "bio": { "type": "text" } } } }

D{ "settings": { "number_of_shards": 1 }, "mapping": { "properties": { "username": { "type": "keyword" }, "age": { "type": "integer" }, "bio": { "type": "text" } } } }

Step-by-Step Solution

Solution:

Step 1: Verify settings syntax
{ "settings": { "number_of_shards": 1, "number_of_replicas": 1 }, "mappings": { "properties": { "username": { "type": "keyword" }, "age": { "type": "integer" }, "bio": { "type": "text" } } } } correctly uses "number_of_shards" and "number_of_replicas" with integer values.
Step 2: Check mappings structure
{ "settings": { "number_of_shards": 1, "number_of_replicas": 1 }, "mappings": { "properties": { "username": { "type": "keyword" }, "age": { "type": "integer" }, "bio": { "type": "text" } } } } uses "mappings" with "properties" defining each field and its type properly.
Step 3: Identify errors in other options
{ "settings": { "shards": 1, "replicas": 1 }, "mappings": { "fields": { "username": "keyword", "age": "integer", "bio": "text" } } } uses incorrect keys "shards" and "replicas" and wrong mapping structure.
{ "settings": { "number_of_shards": "one", "number_of_replicas": "one" }, "mappings": { "properties": { "username": { "type": "keyword" }, "age": { "type": "integer" }, "bio": { "type": "text" } } } } uses strings instead of integers for shard and replica counts.
{ "settings": { "number_of_shards": 1 }, "mapping": { "properties": { "username": { "type": "keyword" }, "age": { "type": "integer" }, "bio": { "type": "text" } } } } misspells "mappings" as "mapping".
Final Answer:
{ "settings": { "number_of_shards": 1, "number_of_replicas": 1 }, "mappings": { "properties": { "username": { "type": "keyword" }, "age": { "type": "integer" }, "bio": { "type": "text" } } } } is the correct JSON structure.
Quick Check:
Correct keys and types are essential in index creation JSON [OK]

Quick Trick: Use correct keys and integer values in settings [OK]

Common Mistakes:

MISTAKES

Using strings instead of integers for shards/replicas
Misspelling 'mappings' as 'mapping'
Incorrect keys like 'shards' instead of 'number_of_shards'

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Which JSON correctly defines this index?

Step 1: Verify settings syntax

Step 2: Check mappings structure

Step 3: Identify errors in other options

Final Answer:

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