Domain 1: Cloud Concepts

Define the AWS Cloud

Introduction

The AWS Cloud delivers versatile infrastructure services on-demand with pay-as-you-go pricing.

AWS stands for Amazon Web Services, the world's most comprehensive and broadly adopted cloud platform.

Benefits of the AWS Cloud:

Benefit	Description
Security	Multiple layers of privacy to safeguard data.
Reliability	Designed for continuous, fault-tolerant access.
Elasticity	Scale up or down based on workload.
Global Reach	Access to data centers around the world.

Shifting Focus to Business Value:

AWS lets businesses shift from managing infrastructure to focusing on activities that generate revenue.

Which of the following is NOT a benefit of the AWS Cloud?

a) Security b) Limited Reach c) Scalability d) Elasticity

b) Limited Reach

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Identify aspects of AWS Cloud economics

Introduction

Understanding AWS Cloud economics helps make effective decisions.

Total Cost of Ownership (TCO):

Type	Description
OpEx	Recurring costs for daily operations.
CapEx	Upfront costs to acquire assets.
Labor Costs	Costs associated with manual, on-premises tasks.
Software Costs	Costs related to licensing when transitioning to cloud.

Cost-saving Operations in Cloud:

With AWS, save costs via right-sized infrastructure, automation, reduced compliance scope, and using managed services like RDS.

RDS stands for Relational Database Service, a managed relational database service by AWS.

Which AWS service is a managed relational database service?

a) EC2 b) Lambda c) RDS d) S3

c) RDS

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Explain different cloud architecture design principles

Introduction

Designing for the cloud requires a different approach than traditional architectures.

Design Principles:

Principle	Description
Design for Failure	Assume failures will happen; design to be resilient.
Decouple Components	Avoid monolithic architectures; each component should be separate.
Implement Elasticity	Use AWS to auto-scale resources based on demand.
Think Parallel	Use AWS's global infrastructure for better performance and redundancy.

What does "Think Parallel" in cloud design mean?

a) Using one data center b) Sequential processing c) Deploying resources in multiple regions d) Using a single region

c) Deploying resources in multiple regions