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AZ-900 > AZ-900 Studying > Flashcards

AZ-900 Studying Flashcards

1
Q

What is the Shared Responsibility Model?

A

How Microsoft and the Customer have divided responsibilities for a variety of things such as security, data, and application settings

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2
Q

IAAS

A

Infrastructure as a Service - Mixed Responsibilities between Microsoft and their customer.

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3
Q

PAAS

A

Platform as a Service - Mixed/Shared Responsibilities between Microsoft and their customer.

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4
Q

SAAS

A

Software as a Service - Mixed/Shared responsibilities between Microsoft and their customer.

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5
Q

Who manages what in IAAS?

A

AZURE: Building security, physical network security, and physical computer security

CUSTOMER: Data, devices, user accounts, authentication platform, application settings, network and firewall settings, operating system patches

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6
Q

Who manages what in PAAS?

A

AZURE: Building security, physical network security, physical computer security, and OPERATING SYSTEM PATCHES

CUSTOMER: Data, devices, user accounts, authentication platform, application settings, network and firewall settings

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7
Q

Who manages what in SAAS?

A

AZURE: Building security, physical network security, physical computer security, operating system patches, NETWORK AND FIREWALL SETTINGS, and APPLICATION SETTINGS

CUSTOMER: Data, devices, user accounts, authentication platform

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8
Q

What is a Public Cloud?

A

The public cloud is defined as computing services offered by third-party providers over the public internet, making them available to anyone who wants to use or purchase them.

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9
Q

What is a Private Cloud?

A

The private cloud is defined as computing services offered either over the internet or a private internal network and only to select users instead of the general public.

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10
Q

What is a Hybrid Cloud

A

A hybrid cloud is a computing environment that combines a private cloud and a public cloud.

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11
Q

What is an example of a Hybrid Cloud?

A

SQL Server stretch database. It allows for a local database with a remote endpoint to the cloud.

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12
Q

What are some downsides to cloud pricing?

A

Difficult to predict your monthly bill, difficult to understand in advance what a service will really cost, possibility for big savings but you lose predictability.

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13
Q

What are some factors affecting VM pricing?

A

Geographical region, operating system SKU/license, instance size, disk type/size, bandwidth, backup storage, reservation/savings plan, support agreement

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14
Q

What are some factors affecting CosmosDB pricing?

A

API choice, region/regions, standard model/serverless, number of operations per second, consumed storage, optional dedicated gateway, backup storage

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15
Q

How are Virtual Machine Instances charged?

A

By time. Stop using the machine to stop the charges and vice versa.

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16
Q

How much does storage cost per month?

A

$0.02 per GB per month. Only pay for storage used, also pay for network traffic to/from other regions

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17
Q

What operations can be charged?

A

Read, write, list, and delete. Pay per message or query to a database.

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18
Q

T/F: All Azure resources deployed to a resource group must use the same Azure region.

A

False

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19
Q

T/F: If you assign a tag to a resource group, all Azure resources in that resource group are assigned to the same tag.

A

False

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20
Q

T/F: If you assign permissions for a user to manage a resource group, the user can manage all Azure resources in that group.

A

True

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21
Q

T/F: Azure China is operated by Microsoft.

A

False

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22
Q

T/F: Azure Government is operated by Microsoft.

A

True

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23
Q

T/F: Azure Government is available only to US government agencies and their partners.

A

True

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24
Q

T/F: A platform as a service (PaaS) solution that hosts web apps in Azure provides full control of the operating systems that host applications.

A

False

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25
Q

T/F: A platform as a service (PaaS) solution that hosts web apps in Azure provides the ability to scale the platform automatically.

A

True

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26
Q

T/F: A platform as a service (PaaS) solution that hosts web apps in Azure provides professional development services to continuously add features to custom applications.

A

True

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27
Q

T/F: Azure provides flexibility between capital expenditure (CapEx) and operational expenditure (OpEx).

A

True

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28
Q

T/F: If you create two Azure virtual machines that use the B2S size, each virtual machine will always generate the same monthly costs.

A

False

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29
Q

T/F: When an Azure virtual machine is stopped, you continue to pay storage costs associated to the virtual machine.

A

True

30
Q

When you are implementing a software as a service (SaaS) solution, you are responsible for…

A

configuring the SaaS solution

31
Q

Which of the following support plans will allow for new support requests to be opened?

Basic, Developer, Standard, PROFESSIONAL DIRECT, PREMIER

A

Developer, Standard, PROFESSIONAL DIRECT, PREMIER

32
Q

Your company has datacenters in Los Angeles and New York. The company has a Microsoft Azure subscription.
You are configuring the two datacenters as geo-clustered sites for site resiliency.
You need to recommend an Azure storage redundancy option.
You have the following data storage requirements:
✑ Data must be stored on multiple nodes.
✑ Data must be stored on nodes in separate geographic locations.
✑ Data can be read from the secondary location as well as from the primary location
Which of the following Azure stored redundancy options should you recommend?

A. Geo-redundant storage
B. Read-only geo-redundant storage Most Voted
C. Zone-redundant storage
D. Locally redundant storage

A

Read-only geo-redundant storage

33
Q

They would like to request an assessment of an Azure environment’s design from Microsoft. This is, however, not supported by the existing plan.
You want to make sure that the company subscribes to a support plan that allows this functionality, while keeping expenses to a minimum.
Solution: You recommend that the company subscribes to the Professional Direct support plan.
Does the solution meet the goal?

A

No

34
Q

You are tasked with deploying Azure virtual machines for your company.
You need to make use of the appropriate cloud deployment solution.
Solution: You should make use of Software as a Service (SaaS).
Does the solution meet the goal?

A

No

35
Q

You are tasked with deploying Azure virtual machines for your company.
You need to make use of the appropriate cloud deployment solution.
Solution: You should make use of Platform as a Service (PaaS).
Does the solution meet the goal?

A

No

36
Q

You are tasked with deploying Azure virtual machines for your company.
You need to make use of the appropriate cloud deployment solution.
Solution: You should make use of Infrastructure as a Service (IaaS).
Does the solution meet the goal?

A

Yes

37
Q

Your developers have created 10 web applications that must be host on Azure.
You need to determine which Azure web tier plan to host the web apps. The web tier plan must meet the following requirements:
✑ The web apps will use custom domains.
✑ The web apps each require 10 GB of storage.
✑ The web apps must each run in dedicated compute instances.
✑ Load balancing between instances must be included.
✑ Costs must be minimized.
Which web tier plan should you use?
A. Standard
B. Basic
C. Free
D. Shared

A

Standard

38
Q

You are planning to migrate a company to Azure. Each of the company’s numerous divisions will have an administrator in place to manage the Azure resources used by their respective division.
You want to make sure that the Azure deployment you employ allows for Azure to be segmented for the divisions, while keeping administrative effort to a minimum.
Solution: You plan to make use of several Azure Active Directory (Azure AD) directories.
Does the solution meet the goal?

A

No

39
Q

Your company is planning to migrate all their virtual machines to an Azure pay-as-you-go subscription. The virtual machines are currently hosted on the Hyper-V hosts in a data center.
You are required make sure that the intended Azure solution uses the correct expenditure model.
Solution: You should recommend the use of the elastic expenditure model.
Does the solution meet the goal?

A

No

39
Q

Your developers have created a portal web app for users in the Miami branch office. The web app will be publicly accessible and used by the Miami users to retrieve customer and product information. The web app is currently running in an on-premises test environment.
You plan to host the web app on Azure.
You need to determine which Azure web tier plan to host the web app. The web tier plan must meet the following requirements:
✑ The website will use the miami.weyland.com URL.
✑ The website will be deployed to two instances.
✑ SSL support must be included.
✑ The website requires 12 GB of storage.
✑ Costs must be minimized.
Which web tier plan should you use?

A

Standard

40
Q

What is an example of an appropriate use case for a Public cloud model?

A

A startup company wants fast services available globally without an existing IT environment, can focus on business model instead.

41
Q

What is an example of an appropriate use case for a Private cloud model?

A

A company with strict legal data protection regulations or security requirements prohibits outsourcing of data or applications to a third-party vendor.

42
Q

What is an example of an appropriate use case for a Hybrid cloud model?

A

Some businesses have high seasonal traffic that need a spill-over environment for a short time. Hybrid will allow steady state to be handled by the private cloud and the ‘spike’ to be handled by on-demand resources in the public cloud.

43
Q

Describe a consumption based model…

A

You are charged only for what you use

44
Q

Which pricing model is better if your utilization is consistently high?

A

Fixed-price

45
Q

Which pricing model is better if you have a wide variability in usage?

A

Consumption-based

46
Q

What are the benefits of high availability in the cloud?

A

Provides a continuous user experience with no apparent downtime

47
Q

What are the benefits of scalability in the cloud?

A

Allows for increased compute capacity by adding RAM or CPUs to a virtual machine and increased compute capacity by adding instances of resources like vms to the configuration

48
Q

What is an example of IAAS?

A

Azure VM; user chooses and maintains the OS but hardware is updated by provider.

49
Q

What is an example of PAAS?

A

Azure App Services; user manages deployment and provider manages VMs and networking resources

50
Q

What is an example of SAAS?

A

MS Office 365; user creates the content and provider manages everything else

51
Q

What is the appropriate use case for IAAS?

A

Big data management, storage, and analysis take a lot of processing power, but IaaS can handle that and integrate with other BI tools

52
Q

What is the appropriate use case for PAAS?

A

Useful for companies that develop, run, and manage their own application programming interfaces and microservices

53
Q

What is the appropriate use case for SAAS?

A

The easiest and most accessible, can be used for something like CRM or accounting through companies like Salesforce.

54
Q

Describe Azure Regions…

A

Geographical areas on the planet that contain at least one but potentially multiple datacenters that are nearby and networked together with a low-latency network. Azure assigns and controls the resources within each region to ensure workloads are appropriately balanced.

55
Q

Describe Azure Regional Pairs..

A

Each Azure region is always paired with another region within the same geography at least 300 miles away. This allows for the replication of resources across a geography that helps reduce the likelihood of interruptions because of natural disasters or other events.

56
Q

Describe availability zones…

A

Physically separate datacenters within an Azure region. If one zone goes down, the other continues working.

57
Q

Describe Azure Resources…

A

Instances of services you create, like VMs, storage, or SQL dbs

58
Q

Describe Azure Resource Groups…

A

Act as a logical container into which Azure resources like web apps, dbs, and storage accounts are deployed and managed. If you delete a resource group, all resources contained within are deleted. RBAC permissions can also be added to ease admin

59
Q

Describe subscriptions…

A

Groups together user accounts and the resources that have been create by those user accounts. There are limits on the amount of resources you can create or use for each subscription. It is a logical unit of Azure services

60
Q

Describe management groups…

A

These groups help you to manage access, policy and compliance for multiple subscriptions. All subscriptions in a management group automatically inherit the conditions applied to that management group.

61
Q

What is the hierarchy of resource groups, subscriptions, and management groups?

A

From top to bottom: Management groups > Subscriptions > Resource groups > Resources

62
Q

What is a container instance?

A

Can be used to deploy and manage containers, which are lightweight, virtualized application environments. Designed to be quickly created, scaled, and stopped dynamically. Can run multiple instances of a containerized application on a single host. Does not require management of a VM or other machines.

63
Q

What is a function?

A

Event-based code running your service and not on the underlying infrastructure.

64
Q

What is a Scale Set?

A

Creates and manages a group of identical, load-balanced VMs. Allows user to centrally manage, configure, and update a large number of VMs in minutes. Number of VM instances can automatically increase or decrease in response on demand or on a defined schedule.

65
Q

What is an Azure Virtual Desktop?

A

Desktop and application virtualization service that runs on the cloud. Enables users to use a cloud-hosted version of Windows from any location. Works across Windows, Mac, iOS, Android, Linux. Provides best user experience, is secure with AD or RBAC, also simplifies management and performance management.

66
Q

What is an Azure App Service?

A

Azure App Service is used to build and host web apps, background jobs, mobile back-ends, and RESTful APIs in many languages, over Windows and Linux enables Github, DevOps, or any Git repo.

67
Q

What is a Web App?

A

Includes full support for hosting web apps by using asp.net, asp.net core, java, ruby, node.js, php, or python on either Windows or Linux OS

68
Q

What is Virtual Networking?

A

Enables communication between multiple computers, VMs, virtual servers, or other devices across different office and data center locations.

69
Q
A

AZ-900 (1 decks)

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