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My AZ-900 Flashcards bkup prior to gixes > Describe Cloud Concepts > Flashcards

Describe Cloud Concepts Flashcards

1
Q

cloud computing

A

It’s the delivery of computing services over the internet, which is otherwise known as the cloud. These services include servers, storage, databases, networking, software, analytics, and intelligence.

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2
Q

Why is cloud computing typically cheaper to use?

A

Cloud computing is the delivery of computing services over the internet by using a pay-as-you-go pricing model. You typically pay only for the cloud services you use, which helps you:

· Lower your operating costs.

· Run your infrastructure more efficiently.

· Scale as your business needs change.

To put it another way, cloud computing is a way to rent compute power and storage from someone else’s datacenter.

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3
Q

Cloud computing advantages over traditional on premise

A

offers faster innovation, flexible resources, and economies of scale.

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4
Q

Why should I move to the cloud?

A

The cloud helps you move faster and innovate in ways that were once nearly impossible.

In our ever-changing digital world, two trends emerge:

· Teams deliver new features to their users at record speeds.

· Users expect an increasingly rich and immersive experience with their devices and with software.

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5
Q

cloud provides on-demand access to:

A
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6
Q

What are the 8 cloud benefits?

A
  1. High availability
  2. Scalability
  3. Global reach
  4. Agility
  5. Fault tolerance
  6. Elasticity
  7. Customer latency capabilities

8.

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7
Q

Describe the cloud consumption based model

A
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8
Q

What is the Azure portal?

A

The Azure portal is a web-based, unified console that provides an alternative to command-line tools. With the Azure portal, you can manage your Azure subscription by using a graphical user interface. You can:

· Build, manage, and monitor everything from simple web apps to complex cloud deployments.

· Create custom dashboards for an organized view of resources.

· Configure accessibility options for an optimal experience.

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9
Q

The _________ is designed for resiliency and continuous availability. It maintains a presence in every Azure datacenter. This configuration makes the ________ resilient to individual datacenter failures and avoids network slowdowns by being close to users. The _______ updates continuously and requires no downtime for maintenance activities.

A
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10
Q

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

A

Azure Marketplace

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11
Q

____________ helps connect users with Microsoft partner, independent software vendors, and startups that are offering their solutions and services which are optimized to run on Azure.

A
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12
Q

Azure Virtual Machines

A

Azure Virtual Machine Scale Sets

Scaling for Windows or Linux VMs hosted in Azure.

Azure Kubernetes Service

Cluster management for VMs that run containerized services.

Azure Service Fabric

Distributed systems platform that runs in Azure or on-premises.

Azure Batch

Managed service for parallel and high-performance computing applications.

Azure Container Instances

Containerized apps run on Azure without provisioning servers or VMs.

Azure Functions

An event-driven, serverless compute service.

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13
Q

Azure Virtual Machine Scale Sets

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14
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Azure Kubernetes Service

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15
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Azure Service Fabric

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16
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Azure Batch

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17
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Azure Container Instances

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18
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Azure Functions

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19
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Azure Virtual Network

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20
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Azure Load Balancer

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21
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Azure Application Gateway

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22
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Azure VPN Gateway

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23
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Azure DNS

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24
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Azure Content Delivery Network

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25
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Azure DDoS Protection

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26
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Azure Traffic Manager

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27
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Azure ExpressRoute

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28
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Azure Network Watcher

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29
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Azure Firewall

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30
Q

Azure Virtual WAN

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31
Q

What are the 4 main types of storage available in Azure

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32
Q

Azure Blob storage

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33
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Azure File storage

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34
Q

Azure Queue storage

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35
Q

Azure Table storage

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36
Q

What are the 5 Common characteristics of Azure storage types

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37
Q

What are the 4 Azure mobile development features

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38
Q

Azure Cosmos DB

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39
Q

Azure SQL Database

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40
Q

Azure Database for MySQL

A

Fully managed and scalable MySQL relational database with high availability and security.

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41
Q

Azure Database for PostgreSQL

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42
Q

SQL Server on Azure Virtual Machines

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43
Q

Azure Synapse Analytics

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44
Q

Azure Database Migration Service

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45
Q

Azure Cache for Redis

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46
Q

Azure Database for MariaDB

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47
Q

Azure App Service

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48
Q

Azure Notification Hubs

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49
Q

Azure API Management

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50
Q

IoT Central

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51
Q

Azure IoT Hub

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52
Q

IoT Edge

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53
Q

Azure Synapse Analytics

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54
Q

Azure HDInsight

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55
Q

Azure Databricks

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56
Q

___________ is a data science technique that allows computers to use existing data to forecast future behaviors, outcomes, and trends. Using __________, computers learn without being explicitly programmed.

A
57
Q

Forecasts or predictions from ___________ can make apps and devices smarter. For example, when you shop online, _________ helps recommend other products you might like based on what you’ve purchased. Or when your credit card is swiped, _______________ compares the transaction to a database of transactions and helps detect fraud. And when your robot vacuum cleaner vacuums a room, _____________ helps it decide whether the job is done.

A
58
Q

Azure Machine Learning Service

A
59
Q

Azure ML Studio

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60
Q

__________ brings together people, processes, and technology by automating software delivery to provide continuous value to your users.

A
61
Q

Azure DevOps

A

Use development collaboration tools such as high-performance pipelines, free private Git repositories, configurable Kanban boards, and extensive automated and cloud-based load testing. Formerly known as Visual Studio Team Services.

Azure DevTest Labs

Quickly create on-demand Windows and Linux environments to test or demo applications directly from deployment pipelines.

62
Q

Azure DevTest Labs

A
63
Q

True or false: You need to purchase an Azure account before you can use any Azure resources.

A

False. You can use a free Azure account or a MS Learn Sandbox to create resources.

64
Q

What is meant by cloud computing?

A

Delivery of computing services over the Internet.

65
Q

Which of the following is not a feature of Cloud computing?

  1. Faster innovation
  2. A limited pool of services
  3. Speech recognition and other cognitive services
A
  1. Limited pool of services.

Cloud offers nearly unlimited set of compute, storage, and network resources.

66
Q

Name the are three deployment models for cloud computing.

A

public cloud, private cloud, and hybrid cloud.

67
Q

Services are offered over the public internet and available to anyone who wants to purchase them. Cloud resources, such as servers and storage, are owned and operated by a third-party cloud service provider, and delivered over the internet.

A

Public cloud

68
Q

A ________ consists of computing resources used exclusively by users from one business or organization. A _________ can be physically located at your organization’s on-site (on-premises) datacenter, or it can be hosted by a third-party service provider.

A

Private cloud

69
Q

A ___________ is a computing environment that combines a public cloud and a private cloud by allowing data and applications to be shared between them.

A

Hybrid cloud

70
Q

Name this cloud model:

  • No capital expenditures to scale up.
  • Applications can be quickly provisioned and deprovisioned.
  • Organizations pay only for what they use.
A

Public cloud

71
Q

Name this cloud model:

  • No capital expenditures to scale up.
  • Applications can be quickly provisioned and deprovisioned.
  • Organizations pay only for what they use.
A

Public cloud

72
Q

Name this cloud model:

  • Hardware must be purchased for start-up and maintenance.
  • Organizations have complete control over resources and security.
  • Organizations are responsible for hardware maintenance and updates.
A

Private cloud

73
Q

Name this cloud model:

  • Provides the most flexibility.
  • Organizations determine where to run their applications.
  • Organizations control security, compliance, or legal requirements.
A

Hybrid cloud

74
Q

What are some cloud computing advantages?

A
  • High availability: Depending on the service-level agreement (SLA) that you choose, your cloud-based apps can provide a continuous user experience with no apparent downtime, even when things go wrong.
  • Scalability: Apps in the cloud can scale vertically and horizontally:
    • Scale vertically to increase compute capacity by adding RAM or CPUs to a virtual machine.
    • Scaling horizontally increases compute capacity by adding instances of resources, such as adding VMs to the configuration.
  • Elasticity: You can configure cloud-based apps to take advantage of autoscaling, so your apps always have the resources they need.
  • Agility: Deploy and configure cloud-based resources quickly as your app requirements change.
  • Geo-distribution: You can deploy apps and data to regional datacenters around the globe, thereby ensuring that your customers always have the best performance in their region.
    • Disaster recovery: By taking advantage of cloud-based backup services, data replication, and geo-distribution, you can deploy your apps with the confidence that comes from knowing that your data is safe in the event of disaster.
75
Q

Depending on the service-level agreement (SLA) that you choose, your cloud-based apps can provide a continuous user experience with no apparent downtime, even when things go wrong. What is this called?

A
  • High availability
76
Q

______________ to increase compute capacity by adding RAM or CPUs to a virtual machine.

A

Scale vertically

77
Q

________________ increases compute capacity by adding instances of resources, such as adding VMs to the configuration.

A

Scaling horizontally

78
Q

______________ is when you can configure cloud-based apps to take advantage of autoscaling, so your apps always have the resources they need.

A

Elasticity

79
Q

_____________ is when you can deploy apps and data to regional datacenters around the globe, thereby ensuring that your customers always have the best performance in their region.

A

Geo-distribution

80
Q

By taking advantage of cloud-based backup services, data replication, and geo-distribution, you can deploy your apps with the confidence that comes from knowing that your data is safe in the event of disaster is a concept known as ___________

A

Disaster recovery

81
Q

_________________ is the up-front spending of money on physical infrastructure, and then deducting that up-front expense over time. The up-front cost from CapEx has a value that reduces over time.

A

Capital Expenditure (CapEx)

82
Q

______________ is spending money on services or products now, and being billed for them now. You can deduct this expense in the same year you spend it. There is no up-front cost, as you pay for a service or product as you use it.

A

Operational Expenditure (OpEx)

83
Q

Cloud service providers operate on a _____________, which means that end users only pay for the resources that they use. Whatever they use is what they pay for.

A

consumption-based model

84
Q

A consumption-based model has many benefits, including:

A
  • No upfront costs.
  • No need to purchase and manage costly infrastructure that users might not use to its fullest.
  • The ability to pay for additional resources when they are needed.
    • The ability to stop paying for resources that are no longer needed.
85
Q

What are the 3 cloud service models?

A

PaaS, IaaS, and SaaS

86
Q

This cloud service model is the closest to managing physical servers; a cloud provider will keep the hardware up-to-date, but operating system maintenance and network configuration is up to you as the cloud tenant. For example, Azure virtual machines are fully operational virtual compute devices running in Microsoft datacenters.

A

IaaS

Infrastructure-as-a-Service

87
Q

An advantage of this cloud service model is rapid deployment of new compute devices. Setting up a new virtual machine is considerably faster than procuring, installing, and configuring a physical server.

A

IaaS

Infrastructure-as-a-Service

88
Q

Build pay-as-you-go IT infrastructure by renting servers, VMs, storage, networks, and OS from a cloud provider when you need it is what cloud service model?

A

IaaS

Infrastructure-as-a-Service

89
Q

This cloud service model is a managed hosting environment. The cloud provider manages the virtual machines and networking resources, and the cloud tenant deploys their applications into the managed hosting environment. For example, Azure App Services provides a managed hosting environment where developers can upload their web applications, without having to worry about the physical hardware and software requirements.

A

PaaS

Platform-as-a-Service

90
Q

With this cloud service model, the cloud solution provider is responsible for everything. It provides an environment for building, testing, and deploying software applications; without focusing on managing the underlying infrastructure.

A

PaaS

Platform-as-a-Service

91
Q

In this cloud service model, the cloud provider manages all aspects of the application environment, such as virtual machines, networking resources, data storage, and applications. The cloud tenant only needs to provide their data to the application managed by the cloud provider. For example, Microsoft Office 365 provides a fully working version of Microsoft Office that runs in the cloud. All you need to do is create your content, and Office 365 takes care of everything else.

A

SaaS

Software-as-a-Service

92
Q

With this cloud service model, users connect to and use cloud based apps over the internet.

A

SaaS

Software-as-a-Service

93
Q

_______is the most flexible category of cloud services. It aims to give you complete control over the hardware that runs your application. Instead of buying hardware, with IaaS, you rent it.

A

IaaS

94
Q

What responsibilities does the tenant have in the on-premise or provide cloud model?

A
  1. Data & access
  2. Applications
  3. Runtime
  4. OS
  5. VM
  6. Compute
  7. Networking
  8. Storage
95
Q

What responsibilities does the tenant have with an IaaS model?

A
  1. Data & access
  2. Applications
  3. Runtime
  4. OS
  5. VM
    6.
96
Q

What responsibilities does the cloud provider have in an IaaS model?

A
  1. Compute
  2. Networking
  3. Storage
97
Q

What responsibilities does a tenant have in a PaaS model?

A
  1. Data & access
  2. Applications
98
Q

What responsibilities does the provider have in a PaaS model?

A
  1. Runtime
  2. OS
  3. VM
  4. Compute
  5. Networking
  6. Storage
99
Q

What responsibilities does the tenant have in a SaaS model?

A
  1. Data & access
100
Q

What responsibilities does a provider have in a SaaS model?

A
  1. Applications
  2. Runtime
  3. OS
  4. VM
  5. Compute
  6. Networking
  7. Storage
101
Q

_________________ enables developers to build applications faster by eliminating the need for them to manage infrastructure. With this computing type, the cloud service provider automatically provisions, scales, and manages the infrastructure required to run the code.

A

serverless computing

102
Q

_______________ are highly scalable and event-driven, only using resources when a specific function or trigger occurs. It’s important to note that servers are still running the code. The name comes from the fact that the tasks associated with infrastructure provisioning and management are invisible to the developer. This approach enables developers to increase their focus on the business logic, and deliver more value to the core of the business.

A

Serverless architectures

103
Q

What are the advantages of serverless computing?

A
  1. highly scalable and event-driven, only using resources when a specific function or trigger occurs.
  2. tasks associated with infrastructure provisioning and management are invisible to the developer.
  3. enables developers to increase their focus on the business logic, and deliver more value to the core of the business.
  4. helps teams increase their productivity and bring products to market faster
  5. allows organizations to better optimize resources and stay focused on innovation
104
Q

Which of the following choices isn’t a cloud computing category?

  • Networking-as-a-Service (NaaS)
  • Platform-as-a-Service (PaaS)
  • Infrastructure-as-a-Service (IaaS)
  • Software-as-a-Service (SaaS)
A

Networking-as-a-Service (NaaS)

105
Q

Which of the following statements is true?

  • With Operating Expenses (OpEx), you are responsible for purchasing and maintaining your computing resources.
  • With Operating Expenses (OpEx), you are only responsible for the computing resources that you use.
  • With Capital Expenses (CapEx), you are only responsible for the computing resources that you use.
A

With Operating Expenses (OpEx), you are only responsible for the computing resources that you use.

106
Q

Which of the following options isn’t a type of cloud computing?

  • Distributed cloud
  • Hybrid cloud
  • Private cloud
  • Public cloud
A

Distributed cloud

107
Q

Which of the following choices isn’t a benefit of using cloud services?

  • Scalability
  • Disaster recovery
  • High availability
  • Geographic isolation
A

Geographic isolation

My AZ-900 Flashcards bkup prior to gixes (6 decks)

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