A Company Has an Application That Runs a Web Service

question 865

Multiple Choice

A company has an application that runs a web service on Amazon EC2 instances and stores . j p g images in Amazon S3. The web traffic has a predictable baseline, but often demand spikes unpredictably for short periods of time. The application is loosely coupled and stateless. The . j p g images stored in Amazon S3 are accessed frequently for the first 15 to 20 days, they are seldom accessed thereafter but always need to be immediately available. The CIO has asked to find ways to reduce costs. Which of the following options will reduce costs? (Choose two.)

• A) Purchase Reserved instances for baseline capacity requirements and use On-Demand instances for the demand spikes.
• B) Configure a lifecycle policy to move the . j p g images on Amazon S3 to S3 IA after 30 days.
• C) Use On-Demand instances for baseline capacity requirements and use Spot Fleet instances for the demand spikes.
• D) Configure a lifecycle policy to move the . j p g images on Amazon S3 to Amazon Glacier after 30 days.
• E) Create a script that checks the load on all web servers and terminates unnecessary On-Demand instances.

---

Definitions:

Cell Body

The spherical part of a neuron that contains the nucleus and connects to the dendrites and the axon, playing a crucial role in processing information.

Dorsal Root Ganglion

A cluster of nerve cell bodies (neurons) in a dorsal root of a spinal nerve.

Satellite Cells

Cells located at the periphery of skeletal muscle fibers, involved in the repair and regeneration of damaged muscle tissue.

Schwann Cells

Peripheral nervous system cells that produce myelin, insulating axons to increase the speed at which electrical impulses are conducted.