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This course explores Elasticsearch, an open-source, Java-based, full-text search and analytics engine that harnesses the power of the Lucene library. You’ll discover its capabilities as a versatile search engine for business data, offering the ability to store information, conduct searches on accurate and typo-ridden text, and perform real-time data analysis on vast datasets.

Throughout this course, you will gain comprehensive insights into the architecture of Elasticsearch and master the art of indexing and storing data within the Elasticsearch framework. You will progress to learn how to execute various types of queries, including fuzzy queries, and explore the intricacies of each operation and how it is implemented within Elasticsearch.

After completing the course, you’ll have gained a comprehensive understanding of the internal mechanisms of Elasticsearch and developed the skills to effectively use it for your data management and analysis requirements.

Elasticsearch Fundamentals: Indexing and Querying Data

What is the primary purpose of aggregations in Elasticsearch?


What is the primary purpose of aggregations in Elasticsearch?

To group documents into categories or buckets

What is the primary role of bucket aggregations in Elasticsearch?



What is the primary role of bucket aggregations in Elasticsearch?

To group documents based on unique values in a field


To calculate statistical metrics on numeric fields

To find the most significant terms in a text field

What is the purpose of the `terms` aggregation in Elasticsearch?



What is the purpose of the <code>terms</code> aggregation in Elasticsearch?

Which Elasticsearch aggregation type is used for date-based grouping and time series analysis?

Which Elasticsearch aggregation type is used for date-based grouping and time series analysis?

The `terms` aggregation followed by the `avg` aggregation

The `avg` aggregation followed by the `terms` aggregation

The `histogram` aggregation followed by the `avg` aggregation

 The `sum` aggregation followed by the `terms` aggregation

In a dataset of e-commerce transactions with fields for product categories and prices, what combination of Elasticsearch aggregations should you use to find the average price for each product category?


In a dataset of e-commerce transactions with fields for product categories and prices, what combination of Elasticsearch aggregations should you use to find the average price for each product category?

For a social media analytics project focused on discovering the top five hashtags used in posts over the last week, which Elasticsearch aggregation should you use?


For a social media analytics project focused on discovering the top five hashtags used in posts over the last week, which Elasticsearch aggregation should you use?

Which Elasticsearch aggregation should you use when analyzing website traffic data to determine the hourly distribution of page views? 

Which Elasticsearch aggregation should you use when analyzing website traffic data to determine the hourly distribution of page views?

The `terms` aggregation followed by the `sum` aggregation

The `date_histogram` aggregation followed by the `avg` aggregation

The `percentiles` aggregation followed by the `max` aggregation


The `top_hits` aggregation followed by the `min` aggregation



In a sales dataset, you want to find the total revenue for each product category. Which combination of Elasticsearch aggregations should you use?



In a sales dataset, you want to find the total revenue for each product category. Which combination of Elasticsearch aggregations should you use?

The `max` aggregation followed by the `min` aggregation

The `date_histogram` aggregation followed by the `sum` aggregation

The `terms` aggregation followed by the `percentiles` aggregation


The `histogram` aggregation followed by the `avg` aggregation


 In a log analysis project, you need to find the distribution of response times for API calls. Which combination of Elasticsearch aggregations should you use to calculate the average response time within specified time intervals?



In a log analysis project, you need to find the distribution of response times for API calls. Which combination of Elasticsearch aggregations should you use to calculate the average response time within specified time intervals?

 The `histogram` aggregation followed by the `sum` aggregation

 The `terms` aggregation followed by  the `avg` aggregation

 The `date_histogram` aggregation followed by the `percentiles` aggregation

The `max` aggregation followed by the `min` aggregation


In a user engagement analysis project for a mobile app, you want to determine the distribution of user session durations. Which combination of Elasticsearch aggregations should you use to find the median session duration within specified time intervals?



In a user engagement analysis project for a mobile app, you want to determine the distribution of user session durations. Which combination of Elasticsearch aggregations should you use to find the median session duration within specified time intervals?

Test your aggregation knowledge of Elasticsearch.

Introduction to Elasticsearch

Getting started on Elasticsearch

Text Analysis

Search on ElasticSearch

Aggregation

Conclusion

Quiz: Aggregation