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azure fundamentals > Core Architectural components of Azure > Flashcards

Core Architectural components of Azure Flashcards

1
Q

What is the physical infrastructure?

A

data centers around the world - yet not directly accessible.

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

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2
Q

What are data centers grouped into?

A

Azure regions or Azure availability zones

  • to help achieve resiliency and reliability
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3
Q

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

A

One

  • a resource can only be in one group at a time
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4
Q

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

A

The setting is applied to current and future resources.

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5
Q

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

A

Region Pairs

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6
Q

What is a Region?

A

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

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7
Q

What are availability zones?

A

Physically separate data centers within an Azure Region

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8
Q

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

A

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

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9
Q

How are Availability zones connected?

A

Through high speed private fiber optic networks

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10
Q

What are Availability zones made up of?

A

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

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11
Q

Important regarding AZ?

A

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.

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12
Q

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

A

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

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13
Q

True or False

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

A

True

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14
Q

Azure services that support availability zones are what 3 categories?

A

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

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15
Q

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

A

Yes

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16
Q

Region Pairs

A

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

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17
Q

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

A

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

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18
Q

Important about region pairs

A

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

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19
Q

Advantages of region pairs

A

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)

20
Q

True or False

most regions are paired in two directions

A

True

21
Q

True or False

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

A

true

22
Q

Sovereign Regions

A

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

this may be needed for compliance or legal purposes.

23
Q

Soveregion Regions include :

A

US DOD Central
US Gov Virgina
US Gov Iowa and more

  • government agencies and partners
24
Q

True or False

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

A

True

25
Q

Management infrastructure includes:

A

Azure resources and resource groups
Subscriptions
Accounts

26
Q

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

A

True

27
Q

True or False

Anything you create, provision, deploy, etc is a resource

A

True

28
Q

True or False

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

A

True

29
Q

What is a resource group

A

Grouping resources together

30
Q

T or F

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

A

True

31
Q

T or F

Resource groups can be nested

A

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

32
Q

T or F

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

A

True

33
Q

T or F

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

A

False

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

34
Q

T or F

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

A

True

35
Q

Azure Subscriptions

A

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

36
Q

T or F

Using Azure requires a subscription

A

True

37
Q

T or F

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

A

True

38
Q

What are the two types of Azure subscription boundaries?

A

Billing boundary - determines how an Azure account is billed for using Azure

Access control boundary - Azure applies access-management policies at the subscription level

39
Q

What are a few reasons for adding additional subscriptions?

A

Enviornments
Organizational structures
Billing

40
Q

T or F

Resource groups are gathered into subscriptions

A

True

41
Q

How can you manage a lot of subscriptions?

A

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

42
Q

T or F

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

A

True

43
Q

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

A

10,000 management groups

44
Q

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

A

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

45
Q

T or F

Each management group and subscription can only support one parent

A

True

azure fundamentals (14 decks)

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