You work for a manufacturer of wifi-connected radios. Your company wants to use data captured when these radios are in use by their customers (such as how the hardware is performing, the applications that are running on the radio, and the content that’s being streamed) to serve their customers better. You and your team of machine learning specialists have been asked to use the data captured when users play their radios to build a model that detects anomalies with the hardware performance.
What AWS service and function within that service will allow you to identify anomalies in the data stream?

Answer options:

A.Kinesis Data Analytics and its Hotspots function
B.Kinesis Data Analytics and its Random Cut Forest function
C.Kinesis Data Firehose and its Hotspots function
D.Kinesis Data Streams and its Random Cut Forest function
E.Kinesis Data Streams and its Hotspots function
F.Kinesis Data Firehose and its Random Cut Forest function

Answer: B
Option A is incorrect. The Kinesis Data Analytics Hotspot function is used to get information about dense regions in your data, not to identify outlier data, or anomalies, in your streaming data.
Option B is correct. The Kinesis Data Analytics Random_Cut_Forest function is used to identify outlier data, or anomalies, in your streaming data.
Option C is incorrect. Kinesis Data Firehose does not have functions like Hotspots or Random_Cut_Forest.
Option D is incorrect. Kinesis Data Streams does not have functions like Hotspots or Random_Cut_Forest.
Option E is incorrect. Kinesis Data Streams does not have functions like Hotspots or Random_Cut_Forest.
Option F is incorrect. Kinesis Data Firehose does not have functions like Hotspots or Random_Cut_Forest.
Reference:
Please see the Amazon Kinesis Data Analytics for SQL Applications Developer Guide titled Examples: Machine Learning, the Amazon Kinesis Data Analytics for SQL Applications Developer Guide titled Example: Detecting Data Anomalies on a Stream (RANDOM_CUT_FOREST Function), and the Amazon Kinesis Data Analytics for SQL Applications Developer Guide titled Example: Detecting Hotspots on a Stream (HOTSPOTS Function)