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AZ 900 Azure Fundamentals > Introduction to Microsoft Azure Fundamentals > Flashcards

Introduction to Microsoft Azure Fundamentals Flashcards

1
Q

What are the 3 knowledge domains for AZ-900?

A
  1. Describe cloud concepts (25 - 30%)
  2. Describe Azure architecture and services (35-40%)
  3. Describe Azure management and governance (30-35%)
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2
Q

cloud computing

A

The delivery of computing services over the Internet

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3
Q

Computing services

A

virtual machines, storage, databases, networking, IoT, AI, machine learning (ML). The infrastructure is in the cloud provider datacenter

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4
Q

compute power

A

How much processing a computer can do. Cloud computing allows you to add and remove computer power

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5
Q

The shared responsibility model.

A

IT maintenance responsibilities are shared between the provider and the customer. The provider will take care of physical security, power, cooling, and network connectivity. The customer will take care of the data and information stored in the cloud. Responsibility can depend on the situation.

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6
Q

on-premises datacenter

A

The customer is responsible for everything.

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7
Q

IaaS Infrastructure as a service

A
  • places the most responsibility on the consumer
  • the cloud provider is responsible for the basic physical security, cooling, and power
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8
Q

SaaS Software as a Service

A
  • most of the responsibility is on the cloud provider
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9
Q

PaaS Platform as as Service

A
  • middle ground
  • evenly distributes responsibility between the cloud provider and the consumer
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10
Q

Responsibilities always retained by the customer.

A
  1. the information and data stored in the cloud
  2. Devices that are allowed to connect to your cloud (cell phones, computers, etc)
  3. The accounts and identities of the people, services and devices within your organization
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11
Q

Responsibilities always retained by the cloud provider.

A
  1. the physical datacenter
  2. the physical network
  3. the physical hosts
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12
Q

The service model determines the responsibility for the following:

A
  1. Operating systems
  2. Network controls
  3. Applications
  4. Identity and infrastructure
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13
Q

Cloud models

A

the cloud models define the deployment and cloud resources

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14
Q

What are the three main cloud models

A
  1. Private
  2. Public
  3. Hybrid
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15
Q

private cloud

A
  • a cloud that is used by a single entity (IT services over the internet)
  • provides much greater control for the company and its IT department
  • comes with a greater cost and fewer of the benefits of a public cloud deployment
    may be hosted from onsite datacenter
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16
Q

public cloud

A
  • a cloud that is built, controlled, and maintained by a third party provider
  • anyone that wants to purchase cloud services can access and use resources
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17
Q

hybrid cloud

A
  • a computing environment that uses both public and private clouds in an inter-connected environment
  • organization controls security, compliance, or legal requirements
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18
Q

multi-cloud

A
  • the use of multiple public cloud providers and mange resources and security in both environments
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19
Q

Azure arc

A

a set of technologies that helps manage your cloud environment
- it can even mange other cloud providers

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20
Q

Azure VMware solution

A
  • if you already established with VMware in a private cloud but want to migrate to a public or hybrid cloud then Azure VMware solution lets you run your VMware workloads in Azure
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21
Q

What are the 2 types of expenses to consider when comparing IT infrastructure models?

A
  1. Capital expenditure (CapEx)
  2. Operational expenditure (OpEx)
22
Q

Capital Expenditure (CapEx)

A

a one-time, up-front expenditure to purchase or secure tangible resources (new building, company vehicle, repaving the parking lot)

23
Q

Operating Expenditure (OpEx)

A

spending money on services or products over time (renting a convention center, signing up for cloud services)

24
Q

Is cloud computing CapEx or OpEx?

A

OpEx, because it falls under a consumption based model.

25
Q

consumption-based model

A
  • pay as you go, you pay for the IT resources you use
  • no upfront costs
  • no need to purchase and manage costly infrastructure
    the ability to pay for more resources
  • the ability to stop paying for resources that are no longer needed
26
Q

Application Inisghts

A

A service offered by Azure that integrates with your application to give you detailed information about the performance and reliability of your application

27
Q

High availability and scalability

A
  • the availability of data and applications
  • the ability to grow data and applications
28
Q

Reasons to lose availability

A
  • a network outage
  • an application failure
  • a system outage
  • a power outage
  • a problem with a reliant system, such as an external database
29
Q

Service - Level Agreement (SLA)

A

an agreement that guarantees a certain level of availability as a percentage
- uptime of close to 100%
- only applies to systems controlled by the cloud provider

30
Q

scaling

A

the process of adding additional resources or additional power for your application

31
Q

scaling out

A

horizontal scaling

32
Q

scaling up

A

vertical scaling, you can gain more features as well as CPU power

33
Q

scaling down, scaling in

A

reduction of resources when they are no longer needed

34
Q

elasticity

A

the ease of scaling in both directions
the concept of automatically scaling

35
Q

Auto-Scale

A

an Azure service than can automatically scale applications running in many Azure services based on usage patterns, resource utilization, time of day, and much more

36
Q

Cloud agility

A

The speed in which Azure can reallocate resources

37
Q

fault tolerant

A
  • the ability to move from an unhealthy system to a healthy system
  • designed to deal with failure on a small scale
38
Q

Business Continuity and Disaster Recovery (BCDR)

A
  • disaster recovery plan
  • replicate an application’s resources in an unaffected region to keep data safe
39
Q

3 Categories of cloud

A
  1. Infrastructure-as-a-Service (IaaS)
  2. Platform-as-a-Service (PaaS)
  3. Software-as-a Service (SaaS)
40
Q

Infrastructure-as-a-Service IaaS

A

the virtualized infrastructure offered by a cloud provider, VM (you provide the OS and are responsible for patching)

41
Q

Azure Security Center

A

ensures the security of IaaS VMs

42
Q

Azure Backup

A

easily backups data

43
Q

Azure Log Analytics

A

troubleshoot any problems, logging

44
Q

IaaS Cost

A
  • only pay for them when they are allocated to you
  • increase and reduce resources as needed
45
Q

Platform-as-a Service (PaaS)

A

The cloud provider provides the infrastructure, the operating system, software installed in the OS to help connect to databases and network systems (middleware), and features that enable you to build and manage complex cloud applications
- minimize your management investment

46
Q

PaaS and VMs

A

a user has limited visibility into those VMs, they are managed entirely by the provider

47
Q

Azure App Service

A

a PaaS offering in Azure

48
Q

Docker

A

a technology that makes it easy to package your application and the components that it requires into an image that you can deploy and run on another computer as long as it has Docker installed on it
- automatically installed on all App Service VMs as a part of MS PaaS and completed maintained by MS

49
Q

Other PaaS Offerings

A

CDN, Cosmos DB, SQL Database, Database for MySQL, Storage, Synapse Analytics

50
Q

lift-and-shift

A

moving you application from on-premises to a cloud environment by deploying it to the cloud

51
Q
A

AZ 900 Azure Fundamentals (1 decks)

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