Cloud Concepts Flashcards
Which four categories can cloud computing be narrowed down to?
Dedicated Server, Virtual Private Server, Shared Hosting, Cloud Hosting
What is cloud computing?
The practice of using a network of remote servers hosted on the Internet to store, manage, and process data, rather than a local server or a personal computer
What are the four most common types of cloud services for IaaS?
Compute, Storage, Networking, Databases
What are the benefits of cloud computing?
It’s cost effective, meaning you pay for what you consume, no up-front cost.
It’s global, meaning you can launch workloads anywhere in the world.
It’s secure, cloud providers take care of the physical security. Cloud services can be secure by default, or you can configure access down to granular level.
It’s reliable, with data backup, disaster recovery, data replication, and fault tolreance.
It’s scalable, increase or decrease resources and services based on demand.
Elastic, meaning you can automate scaling during spikes and drops in demand.
Current, meaning the underlying hardware and managed software is patched, upgraded and replaced by the cloud provider without any interruption to you.
What are the different types of Cloud Computing?
Saas (Software-as-a-Service)
A product that is run and managed by the serice provider.
PaaS (Platform-as-a-Service)
Focus on the deployment and managment of your apps.
IaaS (Infrastructure-as-a-Service)
The basic building blocks for cloud IT. Provides access to networking features, computers and data storage space.
What are the different Cloud Deployment Models?
Public Cloud: Everything built on the Cloud Provider, aka: Cloud Native.
Private Cloud: Everything built on the company’s datacenters, aka: On-Premises
Hybrid: Using both On-Premises and a Cloud Service Provicer
Bonus: Cross-Cloud: Using multiple cloud providers.
What is CAPEX vs OPEX?
Capital Expenditure and Operational Expenditure.
Capital Expenditure means spending money upfront on physical infrastructure.
Operational Expenditure are the costs assoctiated when an on-premises datacenter hsa shifted the cost to the service provider. The customer only has to be concerned with non-physical costs.
