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Difficulty: EasyIdentify design principles of the AWS Cloud

A software development team creates a new testing environment on AWS for every code deployment. The environment, consisting of several virtual servers and a database, is created automatically using a script, used to run automated tests, and then completely deleted as soon as the tests are completed. Which AWS Cloud design principle is directly demonstrated by this workflow?

  1. A
    Loose coupling
  2. B
    Tightly coupled architecture
  3. Disposable resourcesAnswer
  4. D
    Scalability

Answer

Disposable resources, which involves treating computing infrastructure as temporary assets that are dynamically provisioned for a task and terminated immediately when finished.
The scenario describes a workflow where resources are dynamically created for a specific purpose (testing) and then completely destroyed immediately afterward. This directly aligns with the AWS Cloud design principle of 'disposable resources', which encourages treating servers and databases as temporary assets rather than permanent, static infrastructure.

Step-by-Step Solution

1
Analyze the lifecycle of the infrastructure described in the scenario.
The virtual servers and databases are created automatically by a script, used for testing, and completely deleted immediately after.
Understanding the timeline and purpose of the resources helps identify which design principle is being put into practice.
2
Evaluate the AWS Cloud design principles against the observed resource lifecycle.
The practice of treating infrastructure as temporary and easily replaceable rather than permanent aligns with 'disposable resources'.
This matches the definition of disposable resources, where components are launched, used, and discarded programmatically.

Key Concept

Disposable resources
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Identify design principles of the AWS Cloud

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