Azure Architecture

Question 1

What is a region?

Answer 1

Two or more data centres geographically grouped together, that are not that far from each other and connected with a fibre connection.

Question 2

What is Latency Defined Perimeter?

Answer 2

Latency is the time it takes data to travel. Also, it means that data centres are not too far from each other.
* Ms defines a Latency limit.

Question 3

What is a regional low-latency network?

Answer 3

A Fibre connection between data centres in a region.

Question 4

How to choose a region?

Answer 4

1. Choose based on location (choose closest to your customer base)
2. Features - Not all regions have all features.
3. Pricing is different between regions.

Question 5

What is Regional Failover?

Answer 5

Each Region (save for Brasil south) is paired. 
* In the event of an outage in the primary region, can you failover to the secondary region.

Question 6

What is an availability Zone?

Answer 6

A physical location. (in a region)
Made up of 1 or more data centres.
Each Zone has its own power, cooling and networking.
Each region has a minimum of three zones.

Question 7

What is a resource group?

Answer 7

Resource groups are like containers.

• Resource groups are not resources.
• You cannot deploy anything in Azure if it is not in a resource group.

Question 8

Resource Group Facts (x4):

Answer 8

1. A resource can only exist in a single resource group.
2. You can add/remove resources from a group.
3. You can move resources between resource groups.
4. Resources from multiple regions can be in one resource group.
5. Can you grant access at a resource group level.

6, Resources can interact with other resources in different resource groups.

7. A resource group has a location or region, as it stores metadata about its resources.

Question 9

What is the Azure Resource Manager (ARM)?

Answer 9

The underpinning of any resource management in Azure.

• IT has an API.
• IIt manages the creation, deletion or modification of resources in Azure.
• It provides deployment and management services for all resources in Azure.

Question 10

ARM Benefits:

Answer 10

1) Group Resource handling - you can deploy, manage and monitor as a group.
2) Consistency - deploying resources from different tools will result in in consistent states.
3) Dependencies - Management and definition.
4) Access Control - Assign access rights to users.
5) Tagging - allows you to apply easily identifiable characteristics to resources.
6) Billing - leverage tagging for accurate billing.