A Company Runs an IoT Platform on AWS

question 728

Multiple Choice

A company runs an IoT platform on AWS. IoT sensors in various locations send data to the company's Node.js API servers on Amazon EC2 instances running behind an Application Load Balancer. The data is stored in an Amazon RDS MySQL DB instance that uses a 4 TB General Purpose SSD volume. The number of sensors the company has deployed in the field has increased over time, and is expected to grow significantly. The API servers are consistently overloaded and RDS metrics show high write latency. Which of the following steps together will resolve the issues permanently and enable growth as new sensors are provisioned, while keeping this platform cost-efficient? (Choose two.)

• A) Resize the MySQL General Purpose SSD storage to 6 TB to improve the volume's IOPS
• B) Re-architect the database tier to use Amazon Aurora instead of an RDS MySQL DB instance and add read replicas
• C) Leverage Amazon Kinesis Data Streams and AWS Lambda to ingest and process the raw data
• D) Use AWS-X-Ray to analyze and debug application issues and add more API servers to match the load
• E) Re-architect the database tier to use Amazon DynamoDB instead of an RDS MySQL DB instance

Explain the adaptive mechanisms of archaea that enable their survival in extreme environments.

Understand the nutritional classifications and metabolic pathways of bacteria.

Recognize the stages that led to the formation of the first cells and the complexity of the origins of life.

Classify different bacteria based on their nutritional and metabolic characteristics.

---

Definitions:

Activity-Based Costing

A financial allocation practice that designates overhead and indirect costs to related products and services, determined by the activities they necessitate.

Unit Product Cost

The total cost (both fixed and variable) to produce one unit of a product.

Traditional Costing System

An accounting method that applies indirect costs to products based on a predetermined overhead rate, without distinguishing between activities or processes.

Manufacturing Overhead

All indirect manufacturing costs, encompassing expenses such as maintenance, utilities, and salaries not directly tied to specific units produced.