A Marketing Company Is Using Amazon EMR Clusters for Its

question 80

Multiple Choice

A marketing company is using Amazon EMR clusters for its workloads. The company manually installs third-party libraries on the clusters by logging in to the master nodes. A data analyst needs to create an automated solution to replace the manual process. Which options can fulfill these requirements? (Choose two.)

• A) Place the required installation scripts in Amazon S3 and execute them using custom bootstrap actions.
• B) Place the required installation scripts in Amazon S3 and execute them through Apache Spark in Amazon EMR.
• C) Install the required third-party libraries in the existing EMR master node. Create an AMI out of that master node and use that custom AMI to re-create the EMR cluster.
• D) Use an Amazon DynamoDB table to store the list of required applications. Trigger an AWS Lambda function with DynamoDB Streams to install the software.
• E) Launch an Amazon EC2 instance with Amazon Linux and install the required third-party libraries on the instance. Create an AMI and use that AMI to create the EMR cluster.

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Definitions:

Surface Area

The total area that the surface of a three-dimensional object occupies, measured in square units.

Right Circular Cylinder

A 3-dimensional solid shape with straight parallel sides and a circular base exactly above or below each other.

Difference Of Two Squares

A special case of factoring in algebra that refers to the difference between two square numbers being factorable into the product of their sum and difference.

Perfect Square Trinomial

A trinomial that can be factored into a binomial squared, typically in the form \(a^2 + 2ab + b^2\) or \(a^2 - 2ab + b^2\).