Fundamentals Flashcards
What are the 3 cloud platform models
IaaS - Infrastructure as a Service
PaaS - Platform as a Service
SaaS - Software as a Service
What are the 3 cloud ownership models?
Private - Cloud services provided by company owned resources
Hybrid - Combination of privately owned infrastructure and public cloud infrastructure
Public - Cloud services provided by 3rd party external provider. Available publicly
Multi-Cloud
Leveraging multiple 3rd party clouds as part of your infrastructure
CapEx
Capital Expenditure - One time, initial purchase. Depreciates over time
OpEx
Operational Expenditure - Recurring expenses e.g. Cloud services
What are the two types of scalability?
Horizontal - Adding additional resources
Vertical - Adding more capability to existing resources (more CPU or Ram, for example)
What is reliability?
Ability of a system to recover from failure and still function
What are tools for managing Azure and Azure Resources?
- Web portal
- Command line
- APIs
- Powershell
What does multi-tenant mean?
Access to a resource is not exclusive to
What types of Azure environments are there?
Public - Global availability
Sovereign - China, US Gov
How many availability zones to Subscriptions expose?
3
AZ1, AZ2, AZ3
What is one useful billing boundary?
Subscription
What is a Region?
Geographical area with at least one Azure data center
Availability Zone
Physically separate data center with isolated power, cooling, and networking
What is a Zonal service?
A service that is “pinned” to a specific availability zone. Cannot simultaneously exist in multiple availability zones
What is Zone Redundancy?
Automatically replicating a Resource across Availability Zones
Non Regional Service -
Service available from Azure Regions
Region Pair
Regions in the same geo-political boundary that contain replicated Resources
What is the only Azure Region that does not replicate geographically?
Brazil.
It replicates to South Central US
What are Sovereign Regions?
Regions for governments or countries that are isolated from the main Azure instance
What is a Subscription
A container that logically groups Resources Groups and facilitates billing
Billing Boundary
Separates Subscriptions based on how they are billed
Access Control Boundary
Separates Subscriptions by Access Control Polices
What is an Azure Management Group ?
Hierarchy level above Subscriptions
Elasticity
Automatically Increasing or decreasing Resources as needed, without over provisioning
Agility
Ability to quickly allocate or deallocate Resources. This not necessarily automatic
Powershell AD
An Azure variant of the Powershell shell for interacting with Azure services
Azure CLI
CLI interface for interacting with Azure services and Resources that supports Bash
What is cloud computing?
The delivery of computing services over the internet
What is Serverless?
An abstraction about the OS layer. Only cares about getting work done. Event-driven. Triggered by events or bindings.
What app service plan should Azure Functions use to be truly Serverless?
Consumption Plan
How are Azure Functions invoked?
Triggers
How many Bindings can an Azure Function have?
Several
How many Triggers can an Azure Function have?
1
What is a Management Group?
Construct to manage governance, access and policies
