Azure core servies

Question 1

Networking

Answer 1

Azure Virtual netowrk (VNET):

Provides private and public n/w communication among azure resources.

Uses familiar network concepts in virtual format: subnets, firewalls, routes etc.

Virtual format: software defined Networking(SDN)

Question 2

Compute

Availability set and scale set

Answer 2

Azure vs our responsibilities.

Azure responsibilities:
Physical hardware and networking.
Base OS image
Hypervisor management

our responsibility:
updating/patching OS and installed software
OS access and management
Software installation

Availability set:
VM replictaion(copy)
Replication VM for better fault tolerence

Scale set:

Multiple copies of VM’s
Scaling copies of applications
Enables scaling, and elasticity

Question 3

Storage

Storage account infrastructure

Answer 3

Storage accounts are 5 types :
BLOBS(Objects) 
Files
Disk
queues
tables

BLOBS:
Object Storage
Unstructured data
All file types (images, videos, scripts, etc)

Files: Network file share in the cloud
Disks: Virtual hard drives for VM’s
Queues: Asynchronous messaging between apps and services.

Tables:
NoSQL database storage
Gradually transitioning to cosmos DB

Question 4

Databases and Analytics

Answer 4

Managed DB’s come in

Azure SQL
Cosmos DB
Managed Mysql/postgres SQl : open source

SQL vs no-sql
opensource vs proprietary
fully managed vs provisioned infrastructure

Analytics?

Analyzing data for insights
Massive amounts of required data

Azure data lake

Question 5

App Services vs serverless compute

Answer 5

App server= serverless
Trade flexibility for convenience:
1. App service supports multiple languages and containers, but VM’s are more flexible
2. Developer/coding focused tool: Non-developers will not get much use.

Question 6

Managed services

Azure roles vs user roles

Answer 6

Kubernetes:
Azure handles the container infrastructure management, we handle our containers

AI/Machine learning:
Azure manages different parts depending on the exact service:
Pre-trained models just bring your data
custom models: you bring the model and azure provides the scaling training

Big data solutions:
HDInsight: fully managed Hadoop/spark ecosystem
Azure synapse: query massive amounts of data in fully serverless format

Power BI: SAAS dashboards for visualizing data analytics

Internet of things solutions (IOT)
Internet of things:
internet connected objects like door bells, thermostats, self driving cars

Solutions for entire data collection process:
Ingestion, storage, analysis
Integrate with big data tools

Question 7

Resource groups

Answer 7

Everything in Azure is inside an Azure resource group..
All resources must be inside a resource group, while resource group is not a resource.

Key facts:
One resource: Each resource can exist only in one single resource group
Add/remove: you can add/remove a resource from resource group
Move: you can move a resource from resource group to other
Multiple regions: Resources from Multi AZ can be in one resource group
Access control: you can give users access to entire resource group and everything in it
Interact: resources can interact with other resources in different resource groups
Location: A resource group has a location, or region as it stores metadata about the resources in it