A Developer Is Writing an Application That Runs on Amazon

question 267

Multiple Choice

A Developer is writing an application that runs on Amazon EC2 instances in an Auto Scaling group. The application data is stored in an Amazon DynamoDB table and records are constantly updated by all instances. An instance sometimes retrieves old data. The Developer wants to correct this by making sure the reads are strongly consistent. How can the Developer accomplish this?

• A) Set ConsistentRead to true when calling GetItem.
• B) Create a new DynamoDB Accelerator (DAX) table.
• C) Set Consistency to strong when calling UpdateTable.
• D) Use the GetShardIterator command.

---

Definitions:

Unit Sales

The quantity of items or products sold, not taking into account the selling price or revenue generated.

Variable Cost

Costs that change in proportion to the level of production or sales volume.

Net Operating Income

A company's total income from its operations, excluding taxes and interest.

Monthly Sales

The total revenue generated from sales activities during a specific month.