Dit is een uitgebreide samenvatting van Azure Fundamentals AZ-900 die in januari 2021 is geschreven. Deze samenvatting is een goede start voor een basisbegrip van Azure en help je om te slagen voor dit examen. De volgende onderwerpen worden behandeld:
1. Cloud Concepts
2. Azure Architecture
...
Deze samenvatting is een goede start voor een basisbegrip van Azure. Om te slagen voor het examen
raad ik aan om ook oefenvragen te maken (bijv via Udemy). Als student kun je ook een gratis Azure
account aanmaken om toegang te krijgen tot de Azure portal.
1
,Inhoud
1. Introductie ....................................................................................................................................... 6
Azure Portal ............................................................................................................................................. 6
Azure CLI (Command Line Interface) ................................................................................................... 6
Voordelen van CLI............................................................................................................................ 6
Azure PowerShell ................................................................................................................................ 7
Azure Cloud Shell................................................................................................................................. 7
Cloud Shell Features: ....................................................................................................................... 7
Azure Mobile Apps (Android, iOS) ....................................................................................................... 8
ARM Templates ................................................................................................................................... 8
Voordelen ARM template................................................................................................................ 9
2. Cloud Concepts ................................................................................................................................ 9
The Language of Cloud Computing ..................................................................................................... 9
High Availability: .............................................................................................................................. 9
Fault Tolerance: ............................................................................................................................... 9
Disaster Recovery: ......................................................................................................................... 10
Scalability ....................................................................................................................................... 10
Elasticity......................................................................................................................................... 10
Agility ............................................................................................................................................. 10
The languages of Cloud Economics ................................................................................................... 11
Capital Expenditure ....................................................................................................................... 11
Operational Expenditure ............................................................................................................... 11
Cloud Pricing Model .......................................................................................................................... 11
Consumption-based pricing .......................................................................................................... 11
Cloud Service Models ............................................................................................................................ 11
Shared Responsibility Model ............................................................................................................. 12
Overzicht Shared Responsibility Model......................................................................................... 13
Azure Marketplace ............................................................................................................................ 13
Cloud Architect Models ..................................................................................................................... 14
3. Azure Architecture ........................................................................................................................ 14
Regions .............................................................................................................................................. 14
Hoe kies je een Region? ................................................................................................................ 15
Paired Region................................................................................................................................. 15
Availability Zones ........................................................................................................................... 15
2
, Resource Groups ........................................................................................................................... 15
Azure Resource Manager (ARM) ................................................................................................... 16
ARM voordelen .............................................................................................................................. 16
4. Compute ........................................................................................................................................ 17
Virtual machine ................................................................................................................................. 17
Pricing (kosten) .............................................................................................................................. 17
Voordelen .......................................................................................................................................... 17
Nadelen ............................................................................................................................................. 17
Scale sets ........................................................................................................................................... 18
Voordelen van Scale Sets .................................................................................................................. 18
App Services ...................................................................................................................................... 18
Web Apps .......................................................................................................................................... 18
Wat is een container? ....................................................................................................................... 19
Web Apps voor Containers................................................................................................................ 19
API Apps............................................................................................................................................. 19
Azure Container Instances................................................................................................................. 19
Azure Kubernetes Services ................................................................................................................ 20
Windows Virtual Desktop .................................................................................................................. 20
Functions ........................................................................................................................................... 21
5. Networking .................................................................................................................................... 21
Virtual Network ................................................................................................................................. 21
Subnet Regions en Subscriptions .................................................................................................. 22
Load Balancer .................................................................................................................................... 22
VPN Gateway ..................................................................................................................................... 22
Application Gateway ......................................................................................................................... 22
ExpressRoute ..................................................................................................................................... 22
Content Delivery Network ................................................................................................................. 23
6. Storage .......................................................................................................................................... 23
Blob storage....................................................................................................................................... 23
Disk storage ....................................................................................................................................... 23
File storage ........................................................................................................................................ 23
Archive storage.................................................................................................................................. 23
7. Databases ...................................................................................................................................... 24
Cosmos DB ......................................................................................................................................... 24
Azure SQL .......................................................................................................................................... 24
Azure Database ................................................................................................................................. 24
3
, PostgreSQL ........................................................................................................................................ 24
Database Migration Services ............................................................................................................. 24
8. Authentication and Autorrization ................................................................................................. 25
Azure Active Directory (AAD) ............................................................................................................ 25
Tenant................................................................................................................................................ 25
Subscription ....................................................................................................................................... 25
Hybrid Cloud ...................................................................................................................................... 25
Multi -factor authenticatie ................................................................................................................ 25
Single Sign-on (SSO)........................................................................................................................... 25
9. Azure Solution ............................................................................................................................... 26
Internet of Things .............................................................................................................................. 26
Big data .............................................................................................................................................. 26
Machine Learning .............................................................................................................................. 26
Serverless .......................................................................................................................................... 26
Azure DevOps .................................................................................................................................... 26
10. Security ...................................................................................................................................... 27
Defense in Depth ............................................................................................................................... 27
Netwerkconnectiviteit beveiligen ..................................................................................................... 27
Azure Security Center ........................................................................................................................ 27
Azure Key Vault ................................................................................................................................. 27
Azure Information Protection ........................................................................................................... 27
Azure Sentinel ................................................................................................................................... 27
Azure Dedicated Hosts ...................................................................................................................... 27
Avanced Threat Protection (ATP) ...................................................................................................... 28
11. Privacy, Compliance en Trust .................................................................................................... 28
Governance ....................................................................................................................................... 28
Azure Monitor ................................................................................................................................... 28
Azure Service Health ......................................................................................................................... 28
Compliance ........................................................................................................................................ 28
Privacy ............................................................................................................................................... 28
Trust................................................................................................................................................... 29
12. Pricing ........................................................................................................................................ 29
Subscriptions ..................................................................................................................................... 29
Cost Management ............................................................................................................................. 29
Pricing Factors ................................................................................................................................... 29
Best Practices .................................................................................................................................... 29
4
,13. Support ...................................................................................................................................... 30
Plans .................................................................................................................................................. 30
Tickets................................................................................................................................................ 30
Channels ............................................................................................................................................ 30
Knowledge Center ............................................................................................................................. 30
Service Level Agreements (SLA) ........................................................................................................ 30
Service Lifecyle .................................................................................................................................. 30
5
, 1. Introductie
Azure Portal
Azure CLI (Command Line Interface)
Voordelen van CLI
- Stabiel: Text Commanda’s veranderen niet en de CLI bevindt zich in een stabiele staatAzure
PowerShell
- Structuur: CLI-opdrachten zijn zeer logisch gestructureerd en volgen allemaal hetzelfde
patroon
- Cross platform: de CLI werkt op Windows, Mac en Linux
- Automation: Het is eenvoudig om de CLI-opdrachten te automatiseren voor toekomstig
gebruik
- Logging: het houdt op verschillende manieren bij wie welke opdracht heeft uitgevoerd en
wanneer.
6
,Azure PowerShell
- Cmdlet: Een script dat een specifieke taak uitvoert. Bijvoorbeeld: "New-AzVm" maakt een
nieuwe virtuele machine aan
- Azure Resource Manager: Powershell gebruikt ook de Resource Manager - net als de Portal -
om Azure-resources te manipuleren
- Veelzijdig: Je kunt Powershell voor veel andere taken en gebieden gebruiken. Niet alleen
voor Azure
Tip: Voor dit examen is basiskennis van PowerShell erg handig.
Azure Cloud Shell
Cloud Shell is een interactieve, via de browser toegankelijke shell voor het beheren van Azure-
resources. Je ziet het rechts bovenaan in de Azure Portaal.
Cloud Shell Features:
- Access: overal toegang via een web- of mobiele app. Geverifieerd en veilig
- Shell: kiezen tussen Bash (Azure CLI) of PowerShell
- Tools: inbegrepen tools: interpreters,modules, Azure-tools. Taalondersteuning voor Node.js,
.NET en Python
- Opslag: speciale opslag om gegevens tussen sessies te behouden.
- File Editor: een complete bestandseditor
7
,Azure Mobile Apps (Android, iOS)
De Azure Mobile app biedt een snel overzicht van je resources. Alerts zijn onmiddellijk zichtbaar en
je kunt ook al jouw resources onderzoeken.
ARM Templates
Staat voor Azure Resource Manager
o Beschrijft het gebruikt van Resources: wat bent je aan het updaten, verwijderen,
aanmaken?
o Common Syntax: gedefinieerde taal voor alle ARM-templates, waardoor het eenvoudiger is
om te formaliseren en te leren
o Idempotent: elke ARM-template kan meerdere keren worden ge-applied en het resultaat is
altijd hetzelfde
Hierbij een voorbeeld van een ARM-template in JSON: (zie afbeelding)
$schema = beschrijft de proporties die in de template beschikbaar zijn.
contentVersion: is de versie van jouw template. 1.0.0.0 = versie
Resources: beschrijft welke resources je gebruikt en hoe je ze (wilt) manipuleren.
Type: Je ziet in het voorbeeld een storageAccounts
Location: “eastus”
Name: {provide-unique-name} is een variabel
8
, Voordelen ARM template
- Idempotent: Voer dezelfde templates een, twee of zo vaak als je wilt uit. Het zal hetzelfde
resultaat hebben.
- Source Control: Houdt alle wijzigingen in de ARM-templates bij.
- Hergebruik: Gebruikt een combinatie van meerdere gedeeltelijke ARM templates om glorie
te bereiken - of op zijn minst complexe templates
- Declarative: Specificeer wat je wilt, niet hoe het moet
- Geen menselijke fouten: Automation betekent dat mensen niet dezelfde fouten herhalen.
2. Cloud Concepts
- The Language of Cloud Computing
- The Economy of Cloud Computing
- Cloud Service Models
- Azure Marketplace
The Language of Cloud Computing
Aantal begrippen:
High Availability:
• High availability is de kern van de cloud.
• Je voegt meer servers toe met een klik op de knop.
• Vervang onmiddellijk als er een hardware-fout is.
• Gebruik clusters om een hoge beschikbaarheid te garanderen
Fault Tolerance:
• Maakt deel uit van de veerkracht van cloud computing
• Zero Down-Time: Door Azure veroorzaakte fouten worden ook zelf verholpen door Azure
9
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