A company is designing its AWS workloads so that components can be updated regularly and so that changes can be made in small, reversible increments. Which pillar of the AWS Well-Architected Framework does this design support?
Answer is C.
There are five design principles for operational excellence in the cloud:
Perform operations as code
Make frequent, small, reversible changes
Refine operations procedures frequently
Anticipate failure
Learn from all operational failures
The Operational Excellence pillar of the AWS Well-Architected Framework focuses on designing workloads to support continuous improvement, automation, and operational efficiency. This includes:
Frequent, small, reversible changes to reduce risk.
Automated deployments and monitoring to ensure operational success.
Iterative improvements based on data-driven insights.
The design approach of updating AWS workloads regularly and making changes in small, reversible increments aligns with the Reliability Pillar of the AWS Well-Architected Framework.
Reliability Pillar
Overview:
The Reliability Pillar focuses on the ability of a system to recover from failures and meet customer demands. It involves ensuring that workloads are designed to handle and recover from failures, minimizing downtime and maintaining service availability.
Key Aspects of the Reliability Pillar Supported by the Design Approach:
Frequent Updates and Iterations:
Small, Incremental Changes: Regular updates and incremental changes help in detecting and addressing issues early, minimizing the impact of any failures.
Continuous Improvement: Supports iterative development and improvement of applications, enhancing reliability over time.
etc..
C. "Make frequent, small, and reversible changes" via https://wa.aws.amazon.com/wellarchitected/2020-07-02T19-33-23/wat.pillar.operationalExcellence.en.html
NOT B: Performance efficiency is literal on how efficient you are using computing resources
C - Design principles for operational excellence in the cloud include [...] and frequently making small, reversible changes.
https://explore.skillbuilder.aws/learn/course/134/play/85854/aws-cloud-practitioner-essentials
The Operational excellence pillar focuses on designing and operating AWS workloads to continuously improve processes, procedures, and systems. This includes the ability to make changes in a controlled manner, with minimal disruption and the ability to quickly revert changes if necessary. The use of small, reversible increments allows for easier troubleshooting, rollback, and iterative improvements, promoting operational excellence.
Opcion C, Design workloads to allow components to be updated regularly to increase the flow of beneficial changes into your workload. Make changes in small increments that can be reversed if they fail to aid in the identification and resolution of issues introduced to your environment (without affecting customers when possible).
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