You Have a Web-Style Application with a Stateless but CPU

question 134

Multiple Choice

You have a web-style application with a stateless but CPU and memory-intensive web tier running on a cc2 8xlarge EC2 instance inside of a VPC The instance when under load is having problems returning requests within the SLA as defined by your business The application maintains its state in a DynamoDB table, but the data tier is properly provisioned and responses are consistently fast. How can you best resolve the issue of the application responses not meeting your SLA?

• A) Add another cc2 8xlarge application instance, and put both behind an Elastic Load Balancer
• B) Move the cc2 8xlarge to the same Availability Zone as the DynamoDB table
• C) Cache the database responses in ElastiCache for more rapid access
• D) Move the database from DynamoDB to RDS MySQL in scale-out read-replica configuration

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Definitions:

Individual Interactions

The exchanges and communication between people, which can influence thoughts, feelings, and behaviors.

Sociological Approach

A method of studying society that focuses on understanding social structures, patterns, and relationships from a systematic and critical perspective.

Culture Shock

A feeling of disorientation and discomfort that one may experience when exposed to a foreign culture or social environment for the first time.

Sociological Imagination

The ability to see the relationship between individual experiences and the larger society.