A Company Runs a Web Service on Amazon CC2 Instances

question 570

Multiple Choice

A company runs a web service on Amazon CC2 instances behind an Application Load Balancer. The instances run in an Amazon EC2 Auto Scaling group across two Availability Zones. The company needs a minimum of tour instances a! all limes to meet the required service level agreement (SLA) while keeping costs low. If an Availability Zone tails, how can the company remain compliant with the SLA?

• A) Add a target tracking scaling policy with a short cooldown period.
• B) Change the Auto Scaling group launch configuration to use a larger instance type
• C) Change the Auto Scaling group to use six servers across three Availability Zones
• D) Change the Auto Scaling group to use eight servers across two Availability Zones

Understand the law of diminishing returns and its implications for production and costs.

Identify the shapes and relationships among the ATC, AVC, and AFC curves.

Distinguish between short-run and long-run operational decisions in terms of costs and inputs.

Understand the principle of spreading overhead and how output level affects average fixed costs.

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Definitions:

S-T Segment

A portion of the electrocardiogram (ECG) reading that represents the period between the ventricular depolarization and repolarization, significant in diagnosing myocardial damage.

T Wave

A component of the ECG that represents the repolarization, or recovery, of the ventricles during heartbeats.

Atrioventricular Valves

Valves located between the atria and ventricles of the heart that prevent the backflow of blood during contraction.

Semilunar Valves

Heart valves located at the exits of the right and left ventricles, preventing backflow of blood into the ventricles after contraction; they include the aortic and pulmonary valves.