A Company Runs an Internal Browser-Based Application

question 202

Multiple Choice

A company runs an internal browser-based application. The application runs on Amazon EC2 instances behind an Application Load Balancer. The instances run in an Amazon EC2 Auto Scaling group across multiple Availability Zones. The Auto Scaling group scales up to 20 instances during work hours, but scales down to 2 instances overnight. Staff are complaining that the application is very slow when the day begins, although it runs well by mid-morning. How should the scaling be changed to address the staff complaints and keep costs to a minimum?

• A) Implement a scheduled action that sets the desired capacity to 20 shortly before the office opens.
• B) Implement a step scaling action triggered at a lower CPU threshold, and decrease the cooldown period.
• C) Implement a target tracking action triggered at a lower CPU threshold, and decrease the cooldown period.
• D) Implement a scheduled action that sets the minimum and maximum capacity to 20 shortly before the office opens.

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Definitions:

Opioids

Also known as narcotics. A class of central nervous system depressants whose main effects are the reduction of pain and sleep inducement. Opium, the alkaloid from which opioids are derived, comes from the seeds of the opium poppy, which is indigenous to Asia and the Middle East.

Heroin

A narcotic substance derived from morphine, originating from the seed pods of opium poppy plants, known for its strong addictive properties and illegality.

Respiratory Failure

A medical condition in which the respiratory system fails in one or both of its gas exchange functions: oxygenation and carbon dioxide elimination.

Amotivational Syndrome

A continuing pattern of apathy, profound self-absorption, detachment from friends and family, and abandonment of career and educational goals evident in some long-term users of cannabis.