A Company with Branch Offices in Portland, New York, and Singapore

question 71

Multiple Choice

A company with branch offices in Portland, New York, and Singapore has a three-tier web application that leverages a shared database. The database runs on Amazon RDS for MySQL and is hosted in the us-west-2 Region. The application has a distributed front end deployed in the us-west-2, ap-southheast-1, and us-east-2 Regions. This front end is used as a dashboard for Sales Managers in each branch office to see current sales statistics. There are complaints that the dashboard performs more slowly in the Singapore location than it does in Portland or New York. A solution is needed to provide consistent performance for all users in each location. Which set of actions will meet these requirements?

• A) Take a snapshot of the instance in the us-west-2 Region. Create a new instance from the snapshot in the ap-southeast-1 Region. Reconfigure the ap-southeast-1 front-end dashboard to access this instance.
• B) Create an RDS read replica in the ap-southeast-1 Region from the primary RDS DB instance in the us-west-2 Region. Reconfigure the ap-southeast-1 front-end dashboard to access this instance.
• C) Create a new RDS instance in the ap-southeast-1 Region. Use AWS DMS and change data capture (CDC) to update the new instance in the ap-southeast-1 Region. Reconfigure the ap-southeast-1 front-end dashboard to access this instance.
• D) Create an RDS read replica in the us-west-2 Region where the primary instance resides. Create a read replica in the ap-southeast-1 Region from the read replica located on the us-west-2 Region. Reconfigure the ap-southeast-1 front-end dashboard to access this instance.

---

Definitions:

Deadweight Loss

A loss of economic efficiency that can occur when equilibrium for a good or service is not achieved or is not achievable.

Coefficient Of Monopsony

A measure indicating the degree of market power held by a single buyer in a market.

Elasticity Of Supply

A measure of how much the quantity supplied of a good responds to a change in the price of that good, with higher elasticity indicating a greater response.

Bilateral Monopoly

A market structure consisting of only one buyer and one seller, mutually depending on each other.