A Company Is Running a Two-Tier Web-Based Application in an On-Premises

question 660

Multiple Choice

A company is running a two-tier web-based application in an on-premises data center. The application user consists of a single server running a stateful application. The application connects to a PostgreSQL database running on a separate server. The application's user base is expected to grow significantly, so the company is migrating the application and database to AWS. The solution will use Amazon Aurora PostgreSQL, Amazon EC2 Auto Scaling, and Elastic Load Balancing. Which solution will provide a consistent user experience that will allow the application and database tiers to scale?

• A) Enable Aurora Auto Scaling for Aurora Replicas. Use a Network Load Balancer with the least outstanding requests routing algorithm and sticky sessions enabled.
• B) Enable Aurora Auto Scaling for Aurora writes. Use an Application Load Balancer with the round robin routing algorithm and sticky sessions enabled.
• C) Enable Aurora Auto Scaling for Aurora Replicas. Use an Application Load Balancer with the robin routing and sickly sessions enabled.
• D) Enable Aurora Scaling for Aurora writers. Use a Network Load Balancer with the least outstanding requests routing algorithm and sticky sessions enabled.

---

Definitions:

Role Identities

The conceptions held by individuals about who they are in specific roles within their social networks or groups.

Reflected Appraisals

The method through which people create self-images influenced by their assumptions of others' opinions about them.

Racial Identity

An individual's awareness and experience of being a member of a racial group, including the personal significance and social meaning attached to that group membership.

Cultural Exposure

The experience of encountering and interacting with customs, traditions, and practices different from one's own.