Why Elasticsearch exists - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create an Elasticsearch index named 'products'.

Elasticsearch

PUT /[1]

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

Acustomers

Busers

Cproducts

Dorders

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong index name like 'users' or 'orders'.

Forgetting to specify the index name.

The index name should be 'products' to match the task requirement.

2fill in blank

medium

Complete the query to search for documents where the field 'name' matches 'laptop'.

Elasticsearch

{ "query": { "match": { "[1]": "laptop" } } }

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

Acategory

Btitle

Cdescription

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Using a field that does not exist like 'title' or 'category'.

Misspelling the field name.

The field to search is 'name' as specified in the task.

3fill in blank

hard

Fix the error in the query to filter documents with price greater than 100.

Elasticsearch

{ "query": { "range": { "price": { "[1]": 100 } } } }

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

Agt

Blt

Clte

Dgte

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'lt' or 'lte' which filter for less than values.

Using 'gte' which includes 100, not strictly greater.

Use 'gt' to filter for prices greater than 100.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps words to their lengths only if length is greater than 3.

Elasticsearch

{word: [1] for word in words if [2](word) > 3}

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

Alen(word)

Bword

Clen

Dword.upper()

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'word' as value instead of its length.

Using 'word' instead of 'len' in the condition.

The value is the length of the word using len(word), and the condition uses len(word) > 3.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase keys to values only if value is greater than 0.

Elasticsearch

result = { [1]: [2] for [3], [2] in data.items() if [2] > 0 }

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

Ak.upper()

Bv

Ck

Dvalue

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'value' instead of 'v' as loop variable.

Not converting keys to uppercase.

Keys are converted to uppercase with k.upper(), values are v, and the loop variables are k and v.