A Web Application's Performance Has Been Degrading

question 440

Multiple Choice

A web application's performance has been degrading. Historically, the application has had highly-variable workloads, but lately, there has been a steady growth in traffic as the result of a new product launch. After reviewing several Amazon CloudWatch metrics, it is discovered that over the last two weeks the balance of CPU credits has dropped to zero several times. Which solutions will improve performance? (Choose two.)

• A) Begin using the T2 instance type
• B) Purchase more CPU credits for the existing instance
• C) Increase the size of the current instance type
• D) Configure a CloudWatch alarm on the CPU credits metric

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Definitions:

Individuality

The quality or character of being individual; a distinct personality that sets one person apart from others.

Differences

Distinctions or variations between two or more entities or phenomena.

Metacognition

Self-awareness of cognitive functions, commonly defined as "reflecting on one's thoughts."

False Belief

A misunderstanding or incorrect thinking that one accepts as true, often studied in developmental psychology to understand cognitive development.