Describe core Azure Concepts Flashcards
Which services live under the “Azure Compute” category?
Azure Virtual Machines + Virtual Machine Scalesets Azure Kubernetes Service Azure Service Fabric Azure Batch Azure Container Instances Azure Functions
Which services live under the “Azure Networking” category?
Virtual Network Load Balancer Application Gateway VPN Gateway DNS CDN DDoS Protection Traffic Manager Express Route Network Watcher Firewall Virtual WAN
Which services live under the “storage” category?
Blob Storage
File Storage
Queue Storage
Table Storage
Generally speaking, what do services in the Azure Mobile category offer?
They orientate around providing single sign-on for mobile applications and synchronizing data with apps so that they can run offline.
Which services live under the “Databases” category?
Cosmos DB SQL Database Database for MySQL Database for PostgreSQL SQL Server on Azure Virtual Machines Synapse Analytics - secure data warehouse Database Migration Service (on-prem to cloud migration) Cache for Redis Database for MariaDB
Which services live under the “web” category?
App Service (+ Web Apps subservice) Notification Hubs (any platform push notifications) API Management Cognitive Search SignalR Service
Broadly speaking, what do “Internet of Things” services provide?
The ability to consume many millions of potentially simultaneous events from internet-connected pieces of hardware such as smart fridges and watches
What services live under the “Internet of Things” category?
IoT Central IoT Hub (inter-device communication) IoT Edge (pushing of AI models onto devices at scale)
Broadly speaking, what qualifies as “big data” in Azure?
Applications that need to process huge amounts of information, such as weather systems or genomic sequencing
Which services live under the “Big Data” category in Azure?
Synapse Analytics
HDInsight
Databricks
Which services fall under the “Machine Learning” category?
Machine Learning Service - build machine learning models in the cloud
ML Studio - deploy pre-made machine learning models to the cloud
Which services fall under the “Cognitive Services” category?
Vision - identify information from images
Speech - extract information from spoken audio, including speaker recognition and voice-to-text
Knowledge Mapping - used to build features such as advanced searches and intelligent recommendations
Bing Search - Jesus Christ
Natural Language Processing - Process and extract information from (written) natural language
What are the public, private and hybrid clouds?
public cloud - azure services offered over the public internet, and accessible to anyone who knows the address
private cloud - azure services only accessible to designated individuals (not in public networks)
hybrid cloud - an environment where a collection of azure public cloud services speak directly to services in a private cloud
What is capital expenditure and operational expenditure?
capital expenditure - paying an “up front” cost to own infrastructure, whose value deprecates over time as an asset owned by the organisation
operational expenditure - paying a “per use” cost for infrastructure. No assets are owned by the organisation so there is no deprecation in value
What are the three cloud service models?
Infrastructure as a Service - virtual machines
Platform as a Service - App Services, databases etc
Software as a Service - Office 365
If you wanted to apply spending or use limits to a set of resources, how would you do it?
On a subscription, or on the management group that controls the subscription
What is a management group?
A container for subscriptions which gives a common RBAC target and set of policies
What is a “region” in the azure sense?
A geographic segment of the world which contains one or more proximal data-centres. Any datacentres in a region are connected together in a low-latency network.
What are availability zones?
Groups of datacenters within a region that constitute an isolation boundary. An application can be configured to be zone-redundant, meaning that if one zone fails it’ll fall back to another zone running a copy of the app
What happens to the resources in a resource group if you delete them?
They are all deleted
How do resource groups enable authorization?
RBAC roles can be applied at the resource group level
What is the Azure Resource Manager?
It is an API, which is used by the azure portal and all azure tools which are capable of deleting, changing and creating azure resources
What is an azure subscription?
A subscription provides authenticated and authorized access to azure services. A subscription is owned by an account in azure AD or a directory trusted by azure AD
Which two types of boundary so subscriptions represent?
A billing boundary and an access control boundary
How many ExpressRoute circuits are you allowed on a single subscription?
10
