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AZ-900 > Core Azure Services- 15-20% > Flashcards

Core Azure Services- 15-20% Flashcards

1
Q

Objective Area 2

A 
Includes the following concepts:
▪ Azure Architectural Components
• Regions and Availability Zones
• Subscriptions and Resource Groups
▪ Core Azure Resources
• Compute
• Networking
• Storage
• Databases
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2
Q

Core Azure architectural components – Objective Domain

A 
Describe the benefits and usage of:
• Regions and Region Pairs
• Availability Zones
• Azure Resources
• Resource Groups
• Azure Resource Manager
• Subscriptions
• Azure Management Groups
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3
Q

What are the benefits and usage of Regions?

A
  • Regions are made up of one or more datacenters in close proximity.
  • Provide flexibility and scale to reduce customer latency.
  • Preserve data residency with a comprehensive compliance offering.

Azure offers more global regions than any other cloud provider with 60+ regions representing over 140 countries

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4
Q

What are the benefits and usage of Region pairs?

A

At least 300 miles of separation between region pairs.
• Automatic replication for some services.
• Prioritized region recovery in the event of
an outage.
• Updates are rollout sequentially to minimize downtime.

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5
Q

What are Geographies and what are their benefits and usage?

A

• Discrete markets that preserve data residency and compliance boundaries.
• Typically contain two or more regions.
• Allow customers with specific data-residency and
compliance needs to keep their data and applications in
close proximity.
• Categorized as Americas, Europe, Asia Pacific, Middle East,
and Africa.

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6
Q

What are the availability options?

A
  1. VM SLA 99.9% with Premium Storage- SINGLE VM - Easier lift and Shift
  2. VM SLA 99.99%- AVAILABILITY ZONES- protection from data center failures
  3. MULTI-REGION DISASTER RECOVERY- REGION PAIRS- Regional protection with data residency boundaries
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7
Q

What are the benefits and usage of availability zones?

A

• Provide protection against downtime due to datacenter failure.
• Physically separate datacenters within the same region.
• Each datacenter is equipped with independent power, cooling, and networking.
• Connected through private fiber-optic networks.
Azure Region

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8
Q

What are the benefits and usage of resources?

A

Azure resources are components like storage, virtual machines, and networks that are available to build cloud solutions.

Azure resources- VM, Storage Accounts, Virtual Networks,, App Services, SQL Databases, Functions.

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9
Q

What are the benefits and usage of resource groups?

A

A resource group is a container to manage and aggregate resources in a single unit.
• Resources can exist in only one resource
group.
• Resources can exist in different regions.
• Resources can be moved to different
resource groups.
• Applications can utilize multiple resource groups.

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10
Q

What is an Azure Resource Manager?

A

The Azure Resource Manager (ARM) provides a management layer that enables you to create, update, and delete resources in your Azure subscription

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11
Q

What is an Azure Subscription? What are the two boundaries?

A

An Azure subscription provides you with authenticated and authorized access to Azure accounts.

  • Billing boundary: generate separate billing reports and invoices for each subscription.
  • Access control boundary: manage and control access to the resources that users can provision with specific subscriptions.
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12
Q

What is a management group in subscriptions?

A
  • Management groups can include multiple Azure subscriptions.
  • Subscriptions inherit conditions applied to the management group.
  • 10,000 management groups can be supported in a single directory.
  • A management group tree can support up to six levels of depth.
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13
Q

Core Azure Workloads - Objective Domain

A

Describe the benefits and usage of:
• Virtual Machines, Azure App Services, Azure Container Instances (ACI), Azure Kubernetes Service (AKS), and Windows Virtual Desktop
• Virtual Networks, VPN Gateway, Virtual Network peering, and ExpressRoute
• Container (Blob) Storage, Disk Storage, File Storage, and storage tiers
• Cosmos DB, Azure SQL Database, Azure Database for MySQL, Azure Database for PostgreSQL, and SQL Managed Instance
• Azure Marketplace

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14
Q

What is Azure compute services?

A

Azure compute is an on-demand computing service that provides computing resources such as disks, processors, memory, networking, and operating systems.

Azure compute services involve VMs, App Services, Container instances, Azure Kubernetes Services (AKS), and Windows Virtual Desktop.

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15
Q

What are the benefits and usage of Azure virtual machines?

A

Azure Virtual Machines (VM) are software emulations of physical computers.

Includes virtual processor, memory, storage, and networking.

IaaS offering that provides total control and customization.

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16
Q

What are the benefits and usage of Azure App Services?

A

Azure App Services is a fully managed platform to build, deploy, and scale web apps and APIs quickly.

Works with .NET, .NET Core, Node.js, Java, Python, or php.

PaaS offering with enterprise-grade performance, security, and compliance requirements.

17
Q

What are the benefits and usage of Azure Container Services?
What are the two container services?

A

Azure Containers are a lightweight, virtualized environment that does not require operating system management, and can respond to changes on demand.

Azure Container Instances: a PaaS offering that runs a container in Azure without the need to manage a virtual machine or additional services.

Azure Kubernetes Service: an orchestration service for containers with distributed architectures and large volumes of containers.

18
Q

What are the benefits and usage of Windows Virtual Desktop?

A

Windows Virtual Desktop is a desktop and app virtualization that runs in the cloud.

Create a full desktop virtualization environment without having to run additional gateway servers.

Publish unlimited host pools(similar hosts are grouped) to accommodate diverse workloads.

Reduce costs with pooled, multi-session (many users at once) resources.

19
Q

What are the Azure Networking Services?

A
  1. Azure Virtual Network (VNet)
    enables Azure resources to communicate with each other, the internet, and on-premises networks.
  2. Virtual Private Network Gateway (VPN)
    is used to send encrypted traffic between an Azure virtual network and an on-premises location over the public internet.
  3. Azure Express Route
    extends on-premises networks into Azure over a private connection that is facilitated by a connectivity provider.
20
Q

What is the walkthrough of creating a VM?

A

Create a virtual machine in the Azure Portal, connect to the virtual machine, install the web server role, and test.

  1. Create the virtual machine.
  2. Connect to the virtual machine.
  3. Install the web server role and test.
21
Q

What is the walkthrough of creating an app service?

A

Create a new Web App by using a Docker image stored in Azure Container Registry.

  1. Create a Web App using a Docker image.
  2. Test the Web App.
22
Q

What is the Walkthrough pf Deploying Azure Container Instances?

A

Walkthrough - Deploy Azure Container Instances
Using the Azure Portal create, configure, and deploy a Docker container to an Azure Container Instance. The container will deploy a Hello HTML page.
1. Create a container instance.
2. Deploy the container and test.

23
Q

What is the walkthrough of creating a virtual network?

A

Create a virtual network with two virtual machines and then test connection between the machines.

  1. Create a virtual network.
  2. Create two virtual machines.
  3. Test the connection.
24
Q

What are the Azure storage services?

A

Container storage (blob) is optimized for storing massive amounts of unstructured data, such as text or binary data.

Disk storage provides disks for virtual machines, applications, and other services to access and use.

Azure Files sets up highly available network file shares that can be accessed by using the standard Server Message Block (SMB) protocol.

25
Q

What are Azure’s storage access tiers?

A

Hot-Optimized for storing data that is accessed frequently.

Cool-Optimized for storing data that is infrequently accessed and stored for at least 30 days.

Archive-Optimized for storing data that is rarely accessed and stored for at least 180 days with flexible latency requirements.

26
Q

What is an Azure SQL-managed instance?

A

Azure SQL Managed Instance allows existing SQL Server customers to lift and shift their on-premises applications to the cloud with minimal application and database changes.

Fully managed and evergreen platform as a service.

Preserves all PaaS capabilities (automatic patching and version updates, automated backups, and high availability)

Exchange existing licenses for discounted rates on SQL Managed Instance using the Azure Hybrid Benefit

27
Q

What is an Azure marketplace?

A

Azure Marketplace allows customers to find, try, purchase, and provision applications and services from hundreds of leading service providers, which are all certified to run on Azure.

Open source container platforms.
Virtual machine and database images.
Application build and deployment software.
Developer tools.
And much more, with 10,000+ listings!
28
Q

Knowledge Check-
Pick the term that best describes the feature that is made up of one or more datacenters equipped with independent power, cooling, and networking. It is set up to be an isolation boundary. If one goes down, the others continue to work. They are typically connected to each other through very fast, private fiber-optic networks.

a) Availability sets
b) Availability zones
c) Regional availability

A

b) Availability zones
Each availability zone is made up of one or more datacenters equipped with independent power, cooling, and networking. It is set up to be an isolation boundary. If one availability zone goes down, the others continue to work. The availability zones are typically connected to each other through very fast, private fiber-optic networks.

29
Q 
Knowledge Check-
Which service offers a distributed network of servers that can efficiently deliver web content to users that focuses on minimizing latency?
a) Azure Virtual Network
b) Azure Load Balancer
c) Azure Application Gateway
d) Content Delivery Network
A

d) Content Delivery Network
A content delivery network (CDN) is a distributed network of servers that can efficiently deliver web content to users. It is a way to get content to users in their local region to minimize latency. CDN can be hosted in Azure or any other location.

AZ-900 (6 decks)

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