Describe Cloud Concepts

Question 1

Your company plans to deploy a web application but does not want to install an operating system or web server, nor manage system updates for the web server.

Which type of cloud service should the company implement?

A)PaaS
B)IaaS
C)FaaS
D)SaaS

Answer 1

A) PaaS

PaaS (Platform as a Service) allows you to quickly create an application without having to worry about managing the underlying infrastructure

Question 2

Which of the following would most likely use a private cloud? (Choose two.)

A)Large manufacturer of engines
B)Mid- to large-sized bank
C)Local municipal government
D)Mid-sized beverage distributor

Answer 2

B) Mid-to-large-sized bank
C) Local municipal government

A private cloud has the scalability and efficiency for both companies as well as they are more secure than a public cloud due cloud resources not being shared with others. As both would need more control over resources, they would be the best choice.

Question 3

Your company has purchased an Azure subscription. The company plans to rent IT infrastructure servers, virtual machines (VMs), storage, networks, and operating systems on a pay-as-you-go basis.

Which of the following types of cloud services does this describe?

A)IaaS
B)PaaS
C)FaaS
D)SaaS

Answer 3

A) Iaas

Infrastructure as a service (IaaS) is a category of cloud computing services that is used by many cloud providers. With IaaS, you pay for resources such as servers, virtual machines (VMs), storage, networks, and operating systems from a cloud provider on a pay-as-you-go basis. These resources are provisioned and managed over the Internet.

Question 4

You are migrating a custom web application to Azure. You are responsible for managing the application tools and scaling the infrastructure beneath your application. You want to use Azure App Services to get a granular insight of performance monitoring.

What should you include in the recommendation?

A)Platform as a service (PaaS)
B)Infrastructure as a service (IaaS)
C)Software as a service (SaaS)
D)Database as a service (DBaaS)

Answer 4

A) PaaS

PaaS (Platform as a Service) allows you to quickly create an application without having to worry about managing the underlying infrastructure

Question 5

You have been tasked to investigate the types of models for the cloud. Which cloud model is totally owned by the cloud service provider?

A)Private cloud
B)Public cloud
C)None of these options
D)Hybrid cloud

Answer 5

B) Public Cloud

A public cloud is owned by the cloud services provider (also referred to as the hosting provider). It serves multiple organizations and users who typically connect to the cloud service via the Internet or over a secure network connection.

Question 6

You were tasked with choosing the most appropriate cloud deployment solution for an enterprise workforce that consists mainly of remote employees. You chose an IaaS solution. What is the MOST likely business purpose for your cloud solution?

A)To provide a turnkey solution for email in the cloud
B)To deploy Azure virtual machines to the company’s employees
C)To ensure applications used by employees are updated as quickly as possible
D)To supply on-demand development, testing, delivery, and management of software applications

Answer 6

B) To deploy Azure virtual machines to the company’s employees

IaaS (Infrastructure as a Service) provides customers with an infrastructure that they can then load VMs loaded with applications and middleware for their remote employees.

Question 7

True or False?

Cloud computing offers services over the internet by using the pay-as-you-go pricing model.

Answer 7

True

Question 8

True or False?

Using cloud computing, operating costs are controlled by the cloud service provider, and you don’t have control over it.

Answer 8

False

Question 9

True or False?

The fixed price cloud pricing model is also known as the pay-as-you-go rate.

Answer 9

False

Question 10

True or False?

Using a consumption-based cloud pricing model, you are charged for only what you use.

Answer 10

True

Question 11

True or False?

The consumption-based cloud pricing model is very efficient for the high utilization of resources to gauge baseline costs.

Answer 11

False

Question 12

Pleas explain what the following are:

1) SaaS
2) IaaS
3) PaaS
4) NaaS
5) DSaaS

Answer 12

1) Software as a Service - The cloud service provider hosts applications on cloud servers
2) Infrastructure as a Service - The cloud service provider maintains all the hardware for the cloud infrastructure, with the most control
3) Platform as a Service - The cloud service provider maintains the infrastructure and allows for ease of access to application platforms
4) Network as a Service - The cloud service provider provides network services over the Internet
5) Data Science as a Service - The cloud service provider hosts analytic resources for data-driven applications

Question 13

What is a public cloud?

Answer 13

A service model where each organization shares the cloud service provider’s infrastructure with the other companies that have subscribed to the cloud.

Question 14

What is a private cloud?

Answer 14

A service model where the organization deploys it’s own cloud infrastructure behind a firewall.

Question 15

What is a hybrid cloud?

Answer 15

A service model where the organization’s deployment is split between resources deployed on the cloud service provider’s infrastructure as well as it’s own private cloud structure.

Question 16

What is a community cloud?

Answer 16

A service model where a group of related organizations share infrastructure provided by the cloud service provider for software and development tools that are designed to meet community needs.

Question 17

Your company hosts a website. Due to web traffic spikes that were caused by ads which typically ran for three days, the company has over-purchased capacity in advance of running ads for the next month.

Which benefit of Azure Cloud Services supports cost management for this type of usage pattern?

A)high latency
B)high availability
C)load balancing
D)elasticity

Answer 17

D) Elasticity

Elasticity in Azure could allow the website to scale rapidly, commensurate with demand, due to traffic spikes caused by ads. Microsoft Azure could allocate resources when the spike occurs and deallocate the resources when the traffic spike passes. The elasticity feature makes the capabilities of the cloud appear unlimited and can be allocated in any quantity for any time length.

Question 18

When using a cloud provider, which of the following aspects are the responsibility of the customer organization to secure?

A)Physical sites
B)Hardware infrastructure
C)Cloud networking
D)Firewall configurations

Answer 18

A) Firewall Configurations

It is up to the customer to ensure that firewall configurations are set to their standards

Question 19

Your company has a cloud-based application named MktTrends, which is used by the Marketing department. Which type of cloud computing model would deliver exactly 3.76GB of memory to the MktTrends application to complete a query task?

A)FaaS
B)Serverless computing
C)PaaS
D)IaaS

Answer 19

B) Serverless Computing

Serverless computing is used to deliver exact units of resources when an application needs it, unlike other cloud computing models where resources must be allocated ahead of time to be available when demanded.

Question 20

Your company has the need to keep services up and running, with very little downtime, depending on the service. Which cloud feature is needed in this scenario?

A)Elasticity
B)Disaster recovery
C)Economy of scale
D)Fault tolerance
E)Agility
F)High availability
G)Scalability

Answer 20

F) High Availability

You would choose high availability. This feature allows services to run for extended periods, with very little downtime, depending on the service.

Question 21

Your company has noticed that storage costs have decreased significantly over the past few years due to cloud providers’ ability to purchase larger amounts of storage at significant discounts. These savings have allowed your company to purchase additional cloud resources.

Which cloud feature is represented in this scenario?

A)Agility
B)Economy of scale
C)Fault tolerance
D)Scalability
E)High availability
F)Disaster recovery
G)Elasticity

Answer 21

D) Economy of Scale

You would choose economy of scale. The concept of economy of scale is the ability to do business cheaper and more efficiently when operating on a larger scale, in comparison to operating on a smaller scale.