A Company That Provisions Job Boards for a Seasonal Workforce

question 504

Multiple Choice

A company that provisions job boards for a seasonal workforce is seeing an increase in traffic and usage. The backend services run on a pair of Amazon EC2 instances behind an Application Load Balancer with Amazon DynamoDB as the datastore. Application read and write traffic is slow during peak seasons. Which option provides a scalable application architecture to handle peak seasons with the LEAST development effort?

• A) Migrate the backend services to AWS Lambda. Increase the read and write capacity of DynamoDB
• B) Migrate the backend services to AWS Lambda. Configure DynamoDB to use global tables
• C) Use Auto Scaling groups for the backend services. Use DynamoDB auto scaling
• D) Use Auto Scaling groups for the backend services. Use Amazon Simple Queue Service (Amazon SQS) and an AWS Lambda function to write to DynamoDB

---

Definitions:

Journal Entries

Recorded transactions in the accounting journals that represent the financial activities of a company, detailing debits and credits for account adjustments.

Average Cost

A method of inventory valuation that calculates the cost of goods sold and ending inventory based on the weighted average cost of all items.

Cost Flow Assumption

An accounting principle that determines the method used to assign costs to inventory and to cost of goods sold, including FIFO, LIFO, and average cost methods.

Cost of Goods Sold

The direct costs attributable to the production of the goods sold by a company. This includes the cost of materials and direct labor.