Search performance tuning in Elasticsearch - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to limit the number of search results returned to 10.

Elasticsearch

{
  "query": { "match_all": {} },
  "size": [1]
}

Drag options to blanks, or click blank then click option'

A100

B10

C0

D-1

Attempts:

3 left

💡 Hint

Common Mistakes

Using 0 or negative numbers disables results or causes errors.

Setting size to 10 limits the search results to 10 documents, improving performance by reducing data returned.

2fill in blank

medium

Complete the code to use a term query for exact match on the field status with value active.

Elasticsearch

{
  "query": {
    "[1]": {
      "status": "active"
    }
  }
}

Drag options to blanks, or click blank then click option'

Amatch

Brange

Cterm

Dexists

Attempts:

3 left

💡 Hint

Common Mistakes

Using match causes full-text search, which is slower and less precise.

The term query is used for exact matches, which is faster for keyword fields like status.

3fill in blank

hard

Fix the error in the aggregation to calculate average price.

Elasticsearch

{
  "aggs": {
    "avg_price": {
      "avg": {
        "field": "[1]"
      }
    }
  }
}

Drag options to blanks, or click blank then click option'

Aprice.raw

Bprice.keyword

Cprice.text

Dprice

Attempts:

3 left

💡 Hint

Common Mistakes

Using price.keyword or text fields causes aggregation errors.

The avg aggregation requires a numeric field like price, not keyword or text fields.

4fill in blank

hard

Fill both blanks to filter documents where age is greater than 30 and sort by join_date descending.

Elasticsearch

{
  "query": {
    "range": {
      "age": {
        "[1]": 30
      }
    }
  },
  "sort": [
    { "join_date": { "order": "[2]" } }
  ]
}

Drag options to blanks, or click blank then click option'

Agt

Bgte

Cdesc

Dasc

Attempts:

3 left

💡 Hint

Common Mistakes

Using gte includes 30, which is not requested.

Using asc sorts oldest first.

Use gt for greater than 30 and desc to sort newest first.

5fill in blank

hard

Fill all three blanks to create a filtered aggregation that counts documents with status 'active' and average score above 50.

Elasticsearch

{
  "query": {
    "term": { "status": "[1]" }
  },
  "aggs": {
    "high_score": {
      "filter": {
        "range": {
          "score": { "[2]": [3] }
        }
      },
      "aggs": {
        "avg_score": { "avg": { "field": "score" } }
      }
    }
  }
}

Drag options to blanks, or click blank then click option'

Aactive

Bgt

C50

Dgte

Attempts:

3 left

💡 Hint

Common Mistakes

Using gte includes 50, which is not requested.

Using wrong status value causes no results.

The query filters for status 'active', then the aggregation filters scores greater than 50 before averaging.