---
type: archive
area: archive
status: archived
date: 2026-05-03
created: 2026-05-03
updated: 1980-01-01
tags:
  - archive
---
## 4 Concepts:
- Cloud Concepts (24%) of exam
- Security and Compliance
- Cloud Technology and services
- Billing, Pricing and support

## <mark style="background: #FF5582A6;">What is Cloud?</mark>

![[img-20240906-223623-3d1edd54.png]]
Cloud is the internet Global network of connected devices.
Cloud Computing on demand delivery of compute, database storage, application, and other IT resources
- Pay as you go model
## History of cloud
![[img-20240906-225141-d2f5c372.png]]
Cloud tools that we use in daily life
- Email
- Streaming services
- Google Drive
- Google Photos
- Office 365
Internet = Cloud billions and billions of devices connected between them

## Why Cloud computing?
- at work
No need for physical servers or cabling
No need for server room setup or maintenance
No hardware replacement or procurement
Pay only when and what you consume
Scale up or down and pay for what you use

![[img-20240906-230822-e10540de.png]]
## Best Practices!
- Avoid unnecessary costs
- Reliability
- Efficiency
- Security
- Operational excellence
## AWS
- Provides It infrastructure servces to organizations as web services
- Resources are accessed using internet
- Utilize the pay-as-you-go model
## Compute services :
## Strorage Services:
- EFS
- S3
- Glacier : Amazon Glacier **provides storage for data archiving and backup of cold data**.
## Database Services
- RDS
- DynamoDB
- Redshift Data warehouse
- Elastic cache