Flashcards

Apache NiFi

Data ingestion and distribution system

Apache NiFi is an open-source data ingestion and distribution system that is designed to automate the flow of data between systems.

5 minutes 5 Questions

Apache NiFi is a powerful data integration tool designed to automate the movement of data between disparate systems. As a Big Data Engineer, you would find NiFi valuable for its intuitive web-based user interface that allows you to design, control, and monitor data flows visually through a canvas-b…

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Big Data Engineer - Apache NiFi Example Questions

Test your knowledge of Apache NiFi

Question 1

What is the purpose of the RouteOnAttribute processor in Apache NiFi?

To split a single flow file into multiple flow files based on specified criteria. To enrich flow files with additional data from an external database. To filter flow files based on specified criteria. To replace text within flow files based on specified criteria. To route flow files based on the content of their attributes. To merge multiple flow files into a single flow file based on specified criteria.

Correct Answer: To route flow files based on the content of their attributes.

The RouteOnAttribute processor in Apache NiFi is used to route flow files based on the content of their attributes. It supports a variety of conditional expressions and can route flow files to different destinations based on attribute values.

Question 2

What is the purpose of the InvokeHTTP processor in Apache NiFi?

To filter flow files based on specified criteria. To convert flow files from one file format to another. To enrich flow files with additional data from an external database. To merge multiple flow files into a single flow file based on specified criteria. To invoke a web service or API and retrieve the response in a flow file. To route flow files based on specified criteria.

Correct Answer: To invoke a web service or API and retrieve the response in a flow file.

The InvokeHTTP processor in Apache NiFi is used to invoke a web service or API and retrieve the response in a flow file. This is useful for integrating with external systems and exchanging data with partners or customers.

Question 3

What is a flowfile in Apache NiFi?

A flowfile is a type of processor in NiFi used for transforming data. A flowfile represents a piece of data and its associated attributes as it moves through a NiFi dataflow. A flowfile is a way to group multiple NiFi processors together. A flowfile represents a connection between two NiFi processors. A flowfile is a way to define custom logic in NiFi for processing data. A flowfile is a type of queue used to store data in NiFi.

Correct Answer: A flowfile represents a piece of data and its associated attributes as it moves through a NiFi dataflow.

A flowfile in Apache NiFi represents a piece of data and its associated attributes as it moves through a dataflow. It contains both the content and the metadata needed to process and route the data.

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