Core Architectural components of Azure

Question 1

What is the physical infrastructure?

Answer 1

data centers around the world - yet not directly accessible.

resources arranged in racks with dedicated power, cooling, and networking infrastructure.

Question 2

What are data centers grouped into?

Answer 2

Azure regions or Azure availability zones

• to help achieve resiliency and reliability

Question 3

How many resource groups can a resource be in at the same time?

Answer 3

One

• a resource can only be in one group at a time

Question 4

What happens to the resources within a resource group when an action or setting at the Resource Group level is applied?

Answer 4

The setting is applied to current and future resources.

Question 5

What Azure feature replicated resources across regions that are at least 300 miles away from each other?

Answer 5

Region Pairs

Question 6

What is a Region?

Answer 6

Geographical area on the planet that contains at least one data center.

Intelligently assigns and controls resources within each region to ensure workloads are appropriately balanced

Question 7

What are availability zones?

Answer 7

Physically separate data centers within an Azure Region

Question 8

If one Availability Zone goes down will others continue to work?

Answer 8

Yes. An AZ is set up to be an isolation boundary therefore they do not affect each other

Question 9

How are Availability zones connected?

Answer 9

Through high speed private fiber optic networks

Question 10

What are Availability zones made up of?

Answer 10

one or more data centers equipped with independent power, cooling, and networking

Question 11

Important regarding AZ?

Answer 11

to ensure resiliency, a minimum of 3 separate availability zones are present in all availability zone- enabled regions.

However, not all Azure Regions currently support availability zones.

Question 12

True or False
There is no extra cost to duplicating your services and transferring data between availability zones?

Answer 12

False. There can be added cost in order to do this

Question 13

True or False

Availability Zones are primarily for VMs, managed disks, load balances, and SQL databases

Answer 13

True

Question 14

Azure services that support availability zones are what 3 categories?

Answer 14

Zonal Services - pin the resource to a specific zone (ex. VMs, managed disks, IP addresses)

Zone-redundant Services (ex. zone redundant storage, SQL database)

Non-regional services - services are always available from AZURE geographies are are resident to zone wide outages as well as region wide outages

Question 15

Can outages still happen even with additional resiliency from availability zones?

Answer 15

Yes

Question 16

Region Pairs

Answer 16

most Azure regions are paired with another region within the same geogpraphy at least 300 miles away — making them region pairs

Question 17

What happens if one region in a pair is affected by a natural disaster?

Answer 17

Services would automatically go to the other region in the pair.

Question 18

Important about region pairs

Answer 18

not all Azure services automatically replicate data or automatically fall back from a failed region to cross replicate to another enabled region.

in these scenarios, recovery and replication must be configured by the customer

Question 19

Advantages of region pairs

Answer 19

one region out of every pair is prioritized to make sure at least one is restored as quickly as possible.

planned updates are rolled out to paired regions one region at a time to minimize downtime and risk of application outage

data continues to reside within the same geography as its pair (except for Brazil)

Question 20

True or False

most regions are paired in two directions

Answer 20

True

Question 21

True or False

In a one way pairing direction the primary region does not provide backup for its secondary region

Answer 21

true

Question 22

Sovereign Regions

Answer 22

instances of Azure that are isolated from the main instance of Azure.

this may be needed for compliance or legal purposes.

Question 23

Soveregion Regions include :

Answer 23

US DOD Central
US Gov Virgina
US Gov Iowa and more

• government agencies and partners

Question 24

True or False

Soveregion regions are operated by screened U.S. personnel and include additional compliance certifications

Answer 24

True

Question 25

Management infrastructure includes:

Answer 25

Azure resources and resource groups Subscriptions Accounts

Question 26

True or False A resource is the basic building block of Azure

Answer 26

True

Question 27

True or False Anything you create, provision, deploy, etc is a resource

Answer 27

True

Question 28

True or False VMs, virtual networks, databases, cognitive services, etc are all considered resources

Answer 28

True

Question 29

What is a resource group

Answer 29

Grouping resources together

Question 30

T or F When creating a resource you are required to place it into a resource group

Answer 30

True

Question 31

T or F Resource groups can be nested

Answer 31

False. You cannot put a resource group into another resource group

Question 32

T or F if an action is applied to a resource group then it will be applied to all resources within the group

Answer 32

True

Question 33

T or F If a resource group is deleted it does not delete all the resources that were in the group

Answer 33

False if a resource group is deleted, all resources within the group are deleted

Question 34

T or F if access is granted or denied to a resource group, it applies to all resources?

Answer 34

True

Question 35

Azure Subscriptions

Answer 35

subscriptions are a unit of management, billing, and scale.

Question 36

T or F Using Azure requires a subscription

Answer 36

True

Question 37

T or F An account can have multiple subscriptions but is only required to have one

Answer 37

True

Question 38

What are the two types of Azure subscription boundaries?

Answer 38

Billing boundary - determines how an Azure account is billed for using Azure Access control boundary - Azure applies access-management policies at the subscription level

Question 39

What are a few reasons for adding additional subscriptions?

Answer 39

Enviornments Organizational structures Billing

Question 40

T or F Resource groups are gathered into subscriptions

Answer 40

True

Question 41

How can you manage a lot of subscriptions?

Answer 41

By organizing subscriptions into containers called management groups and apply governance conditions to the management groups

Question 42

T or F All subscriptions in a management group automatically inherit the conditions applied to the management group

Answer 42

True

Question 43

How many management groups can be supported in a single directory?

Answer 43

10,000 management groups

Question 44

How many levels of depth can a management group tree support?

Answer 44

6 levels. This does not include the root level or subscription level

Question 45

T or F Each management group and subscription can only support one parent

Answer 45

True