Cloud Computing Flashcards
What is a server composed of?
-Compute (CPU)
-Memory (RAM)
-Storage (Data)
-Database
-Network (Routers, Switch, DNS server)
Problems with traditional IT approach (on-premise)
-Pay for the rent for the data center
-Pay for power supply, cooling, maintenance
-Adding and replacing hardware takes time
-Scaling is limited
-Hire 24/7 team to monitor the infrastructure
What is Cloud Computing?
Is the on-demand delivery of compute power, database storage, applications and other IT resources with pay-as-you-go princing
Deployment Models of the Cloud
-Private Cloud = Cloud services used by a single organization, not exposed to the public
-Public Cloud = Cloud resources owned and operated by a 3rd party cloud service provider delivered over the Internet
-Hybrid Cloud = Keep servers on premises and extend some capabilities to the Cloud
Five Characteristics of Cloud Computing
-On-demand self service
-Broad network access
-Multi-tenancy and resource pooling
-Rapid elasticity and scalability
-Measured service
Multi-tenancy
Multiple customers can share the same infrastructure and applications with security and privacy
Six Advantages of Cloud Computing
-Trade capital expense (CAPEX) for operational expense (OPEX)
-Benefit from massive economies of scale
-Stop guessing capacity
-Increased speed and agility
-Go global in minutes
-Stop speding money running and maintaining data centers
Problems solved by the Cloud
-Flexibility
-Cost-Effectiveness
-Scalability
-Elasticity
-High-availability and fault-tolerance
-Agility
Types of Cloud Computing
-IaaS = Provide building blocks for cloud IT
-PaaS = Removes the need for your organization to manage the underlying infrastructure
-SaaS = Completed product that is run and managed by the the service provider
AWS has 3 princing fundamentals..
-Compute = Pay for compute time
-Storage = Pay for data stored in the Cloud
-Data transfer OUT of the Cloud
AWS Cloud Use Case
-Enables you to build sophisticated, scalable applications
AWS Global Infrastructure
-Regions = A cluster of data centers
-Availability Zones = ) Is one or more discrete data centers
-Edge Locations = Content is delivered to end users with lower latency
How to choose an AWS Region
-Compliance
-Proximity
-Available services
-Princing
AWS Global Services
-IAM
-Route 53
-CloudFront
-WAF
Region-scoped services
-EC2
-Elastic Beanstalk
-Lambda
-Rekognition
