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Cloud Models (Public, Private, Hybrid, Multi-cloud)

48 questions

All types48Multiple choice25True / False11Matching12
Question 1Question →

A company runs a web application in Microsoft Azure while hosting the application's underlying database on physical servers located in the company's local datacenter. Does this deployment scenario represent an example of a hybrid cloud model?

Show answer & explanation

Answer: True

Answer

Yes, this scenario represents a hybrid cloud model.
The correct answer is true because a hybrid cloud model is defined by combining public cloud services (Azure) with private on-premises infrastructure (local datacenter) to work as a single, integrated environment.

Step-by-Step Solution

1
Identify the deployment environments used in the scenario.
The scenario utilizes Microsoft Azure (a public cloud) and a local datacenter (an on-premises or private environment).
Determining the types of infrastructure is the first step in identifying the cloud deployment model.
2
Analyze how the environments interact with each other.
The web application in the public cloud communicates directly with the database in the local datacenter to function.
A hybrid cloud model is characterized by the connection and orchestration between public and private environments.

Key Concept

Hybrid Cloud Model
Estimated Time:45s
Question 2Question →

A company is evaluating its deployment strategy for two workloads:

- Workload 1: A proprietary database hosted on dedicated physical hardware that the company leases and manages inside a third-party vendor's datacenter. The hardware is not shared with any other tenants.
- Workload 2: A customer portal hosted on shared virtual machines on Microsoft Azure.

The company establishes a secure virtual private network (VPN) connection between the two workloads to allow database queries from the customer portal.

Which cloud model represents the hosted environment of Workload 1, and which cloud model represents the combined architecture of both workloads?

Show answer & explanation

Answer: Workload 1 is hosted in a private cloud, and the combined architecture is a hybrid cloud.

Answer

Workload 1 is hosted in a private cloud, and the combined architecture is a hybrid cloud.
The correct option is the one stating that Workload 1 is hosted in a private cloud and the combined architecture is a hybrid cloud. Workload 1 is a private cloud because it is built on dedicated hardware used exclusively by one organization, regardless of the fact that it is hosted in a third-party datacenter. The combined environment is a hybrid cloud because it establishes network connectivity and data sharing between this private cloud and Microsoft Azure, which is a public cloud.

Step-by-Step Solution

1
Analyze Workload 1 infrastructure ownership and access model.
Since the physical hardware is dedicated exclusively to one tenant and not shared, it is classified as a private cloud, despite being physically located in a third-party vendor's datacenter.
Private clouds can be hosted either in an on-premises datacenter or by a third-party service provider, as long as the organization has exclusive use of the isolated hardware.
2
Analyze Workload 2 deployment model.
Workload 2 runs on shared virtual machines on Microsoft Azure, which is a public cloud provider.
Public cloud services are owned and operated by a third-party cloud provider and share resources among multiple tenants.
3
Evaluate the combined architecture connecting Workload 1 and Workload 2.
The integration of a private cloud (Workload 1) and a public cloud (Workload 2) via a VPN connection results in a hybrid cloud model.
Hybrid cloud is defined by the combination of public and private cloud models, enabling data and applications to be shared and communicated between them.

Key Concept

Cloud Models (Public, Private, Hybrid, Multi-cloud)
Question 3Question →

Match each business scenario to its corresponding cloud deployment model.

Click a left item, then click its matching right item

Items

A hospital hosts its public scheduling portal on Azure Web Apps and utilizes Azure Arc to manage databases running on dedicated physical servers in the hospital's own datacenter.
An online gaming platform deploys its matchmaking service on Azure Kubernetes Service (AKS) and its global player database on Google Cloud Spanner, without utilizing any on-premises hardware.
A national security agency hosts its databases on dedicated, physically isolated hardware managed by a third-party provider in a restricted facility, ensuring no other customer workloads share the infrastructure.
An analytics firm runs big data query workloads using Azure Synapse Analytics serverless pools, where the underlying physical hardware is dynamically shared with other organizations.

Matches

Show answer & explanation

Answer

Match the hospital using Azure Web Apps and local servers to Hybrid cloud; match the gaming platform using Azure AKS and GCP Spanner to Multi-cloud; match the national security agency using isolated hardware managed by a third party to Private cloud; and match the analytics firm using shared Synapse pools to Public cloud.
The correct matches align with the definitions of cloud models: combining public cloud and on-premises is Hybrid cloud; using multiple public cloud providers is Multi-cloud; using isolated, dedicated resources (even third-party hosted) is Private cloud; and using shared resources from a cloud provider is Public cloud.

Step-by-Step Solution

1
Analyze the hospital scenario (left_1).
It combines Azure Web Apps (public cloud) with physical servers in the hospital's datacenter (on-premises/private).
Identifying the combination of public cloud and private/on-premises resources determines a hybrid cloud deployment.
2
Analyze the gaming platform scenario (left_2).
It distributes workloads across Microsoft Azure (AKS) and Google Cloud (Spanner) without any on-premises footprint.
Identifying the use of multiple public cloud providers without on-premises integration determines a multi-cloud deployment.
3
Analyze the national security agency scenario (left_3).
It uses physically isolated, dedicated hardware owned/managed by a third-party hoster for exclusive access.
Identifying that the environment is single-tenant and isolated (regardless of location) determines a private cloud deployment.
4
Analyze the analytics firm scenario (left_4).
It runs serverless queries where hardware resources are dynamically shared across multiple clients.
Identifying dynamic resource sharing (multi-tenancy) provided by a cloud vendor determines a public cloud deployment.

Key Concept

Cloud Models (Public, Private, Hybrid, Multi-cloud)
Estimated Time:2m 0s
Question 4Question →

A company is planning its cloud migration strategy and establishes the following requirements:

* The legacy customer database must remain in the company's local datacenter to ensure physical control and data sovereignty.
* New web applications must be deployed to an environment where the hardware is owned and maintained by a third-party cloud provider, and paid for as an operational expense (OpEx).
* The web applications must securely access data from the legacy customer database.

Which cloud model should the company adopt to satisfy these requirements?

Show answer & explanation

Answer: Hybrid cloud

Answer

Hybrid cloud
The correct answer is hybrid cloud. A hybrid cloud combines public cloud services (such as hosting web applications on a third-party cloud provider's hardware using an OpEx model) with private cloud or on-premises infrastructure (such as keeping a database in a local datacenter to maintain data sovereignty and physical control). This allows the two environments to communicate and share data securely, meeting all of the company's requirements.

Step-by-Step Solution

1
Analyze the requirement for the legacy customer database.
The database must remain in the local datacenter for physical control and data sovereignty, representing a private cloud or on-premises environment.
Identifying the infrastructure environment of the database is the first step in determining the overall model.
2
Analyze the requirement for the new web applications.
The applications must run on hardware owned/maintained by a third-party provider under an OpEx cost structure, representing a public cloud environment.
Identifying the infrastructure environment of the web applications provides the second component of the overall model.
3
Determine the combined cloud model that integrates both environments.
Combining an on-premises/private cloud environment (for the database) with a public cloud environment (for the web apps) is the definition of a hybrid cloud.
A hybrid cloud connects public and private clouds to share data and applications, fulfilling all specified requirements.

Key Concept

Cloud Models (Public, Private, Hybrid, Multi-cloud)
Estimated Time:1m 30s
Question 5Question →

An organization hosts its customer-facing web application on Microsoft Azure and replicates its transactional database to Google Cloud Platform (GCP) for disaster recovery. The two environments are connected via a secure VPN gateway, and no on-premises or private data center resources are utilized. Is the statement that this architecture represents a hybrid cloud model true or false?

Show answer & explanation

Answer: False

Answer

False
The scenario describes a multi-cloud architecture because it solely utilizes two public cloud providers (Microsoft Azure and Google Cloud Platform) with no private cloud or on-premises infrastructure. A hybrid cloud model specifically requires a combination of public and private cloud environments.

Step-by-Step Solution

1
Analyze the cloud providers and infrastructure types used in the scenario.
The organization uses two public cloud providers (Microsoft Azure and Google Cloud Platform) and does not use any private cloud or on-premises data center.
Identifying the types of cloud environments involved is the first step in determining the correct cloud model.
2
Compare the identified configuration against the definitions of hybrid cloud and multi-cloud models.
A hybrid cloud model requires a combination of public cloud and private cloud (or on-premises) infrastructure. A multi-cloud model involves using services from two or more public cloud providers.
Distinguishing between these models requires understanding their distinct composition requirements.
3
Determine the validity of the statement based on the definitions.
Since only public clouds are used, the architecture is a multi-cloud model, not a hybrid cloud model. Therefore, the statement is false.
Concluding the analysis by evaluating the truth value of the specific statement.

Key Concept

Cloud Models (Public, Private, Hybrid, Multi-cloud)
Question 6Question →

A healthcare provider plans to deploy a new patient portal that requires rapid, automated scaling to support unpredictable spikes in user traffic. At the same time, the provider must retain a legacy medical database on dedicated physical hardware inside its own on-premises datacenter to comply with local healthcare privacy regulations. The patient portal must securely access this legacy database. The provider wants to minimize upfront capital expenditures (CapEx) for the portal's infrastructure while maintaining ownership and control of the database hardware. Which cloud deployment model should the provider implement to satisfy these requirements?

Show answer & explanation

Answer: A hybrid cloud model

Answer

A hybrid cloud model
A hybrid cloud model combines public cloud resources (which provide elastic scaling and minimize CapEx for the patient portal) with private infrastructure or on-premises datacenters (which satisfy the requirement to host the legacy database on dedicated, owned physical hardware). This allows both systems to interact securely while meeting all business, financial, and compliance constraints.

Step-by-Step Solution

1
Analyze the infrastructure requirements for the patient portal.
The portal needs rapid, automated scaling and low upfront costs (minimizing CapEx), which aligns with the benefits of a public cloud model.
This determines the cloud environment characteristics required for the web-facing tier.
2
Analyze the infrastructure requirements for the legacy database.
The database must reside on dedicated physical hardware within the provider's own datacenter for compliance, which represents an on-premises or private cloud model.
This determines the cloud environment characteristics required for the data tier.
3
Combine the requirements and identify the intersecting model.
Connecting the public cloud-hosted patient portal with the on-premises database represents a hybrid cloud model.
A hybrid cloud model integrates public cloud services with private, on-premises infrastructure, allowing data and applications to be shared between them.

Key Concept

Cloud deployment models, specifically the hybrid cloud model which bridges public cloud services with on-premises or private infrastructure.
Estimated Time:1m 30s
Question 7Question →

A university needs to host a new research platform. The university decides to host the primary database on physical servers located in their campus data center, which requires purchasing the hardware upfront. At the same time, the research application's web frontend is deployed to Microsoft Azure to handle variable student traffic on a pay-as-you-go basis. Which cloud model is represented by this deployment, and how are the initial database server costs categorized?

Show answer & explanation

Answer: Hybrid, with the database costs categorized as Capital Expenditure (CapEx)

Answer

Hybrid, with the database costs categorized as Capital Expenditure (CapEx)
The deployment combines on-premises physical servers (private infrastructure) with Microsoft Azure (public infrastructure), which defines a hybrid cloud model. Because the university purchases the physical database hardware upfront, these expenses are classified as Capital Expenditure (CapEx).

Step-by-Step Solution

1
Analyze the infrastructure components to identify the cloud model.
The architecture integrates on-premises physical servers (private) with Microsoft Azure services (public).
Combining private and public cloud resources results in a hybrid cloud model.
2
Determine the financial classification of the database server costs.
The servers are purchased upfront by the university, which is an investment in physical infrastructure.
Upfront spending on physical infrastructure is categorized as Capital Expenditure (CapEx).

Key Concept

Identifying cloud models and associated expenditure types
Estimated Time:1m 30s
Question 8Question →

An enterprise is evaluating deployment options for several new IT workloads. Which cloud model corresponds to each of the business scenarios described?

Click a left item, then click its matching right item

Items

A startup deploys its web analytics platform across multiple tenant-shared environments managed entirely by a third-party vendor, accessed securely over the public internet.
A government organization rents dedicated physical servers located in a third-party datacenter to host its sensitive records, ensuring that no other organization shares the hardware or network infrastructure.
A financial institution retains its core transaction database on its local on-premises hardware due to legacy compatibility, while utilizing a public cloud platform to run high-performance risk-modeling simulations that query the local database.
A software development firm deploys its database services on one public cloud provider to utilize a specific managed SQL service, while hosting its machine learning workloads on a different public cloud provider to take advantage of specialized AI tools.

Matches

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Answer

The startup's tenant-shared web analytics platform matches the public cloud model. The government organization's dedicated servers in a third-party datacenter match the private cloud model. The financial institution's combined on-premises database and public cloud simulations match the hybrid cloud model. The software firm's use of two different public cloud providers matches the multi-cloud model.
The correct matches align each scenario to the cloud model that matches its hosting ownership, tenancy, and structure: public cloud is represented by tenant-shared environments; private cloud is represented by dedicated physical servers rented from a third-party provider; hybrid cloud is represented by integrating on-premises hardware with public cloud simulations; and multi-cloud is represented by distributing workloads across two distinct public cloud providers.

Step-by-Step Solution

1
Analyze the startup's scenario involving tenant-shared environments managed by a third-party vendor over the internet.
Identify this as the public cloud model.
Public cloud resources are owned by a third-party provider, shared among multiple tenants, and accessed over the internet.
2
Analyze the government organization's scenario involving rented, dedicated physical servers inside a third-party datacenter with no shared hardware.
Identify this as the private cloud model.
Private cloud consists of computing resources used exclusively by one business or organization, which can be physically located at the organization's on-site datacenter or hosted by a third-party service provider.
3
Analyze the financial institution's scenario combining local on-premises hardware with public cloud risk-modeling simulations.
Identify this as the hybrid cloud model.
Hybrid cloud combines public and private cloud environments (such as on-premises infrastructure), allowing data and applications to be shared between them.
4
Analyze the software firm's scenario deploying database services on one public cloud and machine learning on another public cloud.
Identify this as the multi-cloud model.
Multi-cloud refers to the use of multiple public cloud services from different cloud providers, without necessarily integrating them into a hybrid model.

Key Concept

Characteristics and distinctions of public, private, hybrid, and multi-cloud deployment models.
Question 9Question →

Match each Microsoft Azure cloud model to its corresponding deployment description.

Click a left item, then click its matching right item

Items

Public cloud
Private cloud
Hybrid cloud

Matches

Show answer & explanation

Answer

Public cloud matches with shared resources and no capital expenditure; Private cloud matches with dedicated hardware and highest control; Hybrid cloud matches with the combination of on-premises and public cloud resources.
Public cloud corresponds to shared resources and zero capital expenditure for physical hardware. Private cloud corresponds to dedicated infrastructure providing the highest control and security. Hybrid cloud corresponds to combining on-premises datacenters with public cloud services.

Step-by-Step Solution

1
Identify the characteristic of Public cloud
Public cloud is characterized by shared multi-tenant resources and zero capital expenditure for physical hardware.
This matches the description of resources being shared among multiple tenants with no capital expenditure.
2
Identify the characteristic of Private cloud
Private cloud is characterized by dedicated infrastructure that provides maximum control and security.
This matches the description of resources dedicated exclusively to a single organization.
3
Identify the characteristic of Hybrid cloud
Hybrid cloud is characterized by combining local/on-premises resources with a public cloud provider.
This matches the description of combining private/on-premises infrastructure with a public cloud.

Key Concept

Cloud deployment models (Public, Private, and Hybrid)
Estimated Time:1m 0s
Question 10Question →

A company plans to deploy its workloads to a cloud environment where all hardware resources are dedicated exclusively to their organization and managed within their own physical data center. Which cloud model does this deployment represent?

Show answer & explanation

Answer: Private cloud

Answer

Private cloud
The correct answer is the option indicating a private cloud. A private cloud is defined by cloud infrastructure dedicated to a single organization. It can be hosted internally in the organization's own data center, providing complete control over security and resources.

Step-by-Step Solution

1
Analyze the requirements in the scenario: dedicated hardware resources, exclusive use by one organization, and hosting within their own physical data center.
Identify that the resources are not shared and are hosted on-premises.
This helps determine if the environment is public, private, or hybrid.
2
Match these characteristics to the cloud deployment models.
Determine that dedicated hardware owned and operated on-premises defines a private cloud model.
Public cloud uses shared hardware, and hybrid cloud combines both public and private environments.

Key Concept

Cloud Models (Public, Private, Hybrid)
Question 11Question →

A technology company rents dedicated physical servers from a third-party hosting provider to run a proprietary analytics engine under its exclusive control, and connects this environment securely to Microsoft Azure where it runs its public API endpoints. Is the statement that this configuration constitutes a hybrid cloud model true or false?

Show answer & explanation

Answer: True

Answer

True
The correct answer is True because the dedicated physical infrastructure hosted by the third party is a private cloud, and its integration with Microsoft Azure (a public cloud) satisfies the definition of a hybrid cloud model.

Step-by-Step Solution

1
Analyze the resource ownership and exclusivity of the third-party hosting environment.
The servers are dedicated physical hardware under the exclusive control of the technology company, which classifies this environment as a hosted private cloud.
A private cloud is defined by exclusivity of resources, regardless of whether it is located on-premises or at a third-party facility.
2
Analyze the Microsoft Azure environment.
Microsoft Azure is a public cloud provider where services are shared across multiple tenants over the public internet.
Understanding the nature of Azure is necessary to identify the public cloud component of the architecture.
3
Evaluate the combined architecture.
The secure connection between the hosted private cloud and the public cloud (Azure) forms a hybrid cloud environment.
A hybrid cloud combines public and private cloud models, allowing data and applications to be shared between them.

Key Concept

Hybrid Cloud Model definition and private cloud hosting options
Question 12Question →

An international logistics organization is migrating its customer-facing booking application to Microsoft Azure to handle seasonal spikes in traffic. However, due to strict national regulations, the database containing historical customer shipping records must remain on physical servers located in the company's local corporate headquarters. The on-premises database will be connected to the Azure web application using a secure network connection.

Which cloud model and expense type combination represents this deployment?

Show answer & explanation

Answer: A hybrid cloud model where the Azure web application represents operational expenditure (OpEx) and the on-premises database represents capital expenditure (CapEx).

Answer

A hybrid cloud model where the Azure web application represents operational expenditure (OpEx) and the on-premises database represents capital expenditure (CapEx).
The deployment combines public cloud services (Microsoft Azure) with private infrastructure (on-premises database servers), which defines a hybrid cloud model. Furthermore, Azure services use a consumption-based pricing model, which falls under operational expenditure (OpEx), while the owned and managed on-premises physical hardware represents capital expenditure (CapEx).

Step-by-Step Solution

1
Analyze the hosting environment of the different components to determine the cloud deployment model.
The web application runs on Azure (a public cloud) while the database remains on physical servers at corporate headquarters (a private infrastructure). The combination of public and private environments constitutes a hybrid cloud model.
Classifying where the resources reside is the first step in identifying the correct cloud model.
2
Analyze the financial characteristics of each hosting environment to determine the expense type.
The public cloud resources on Azure are consumption-based, representing Operational Expenditure (OpEx). The on-premises database servers require physical hardware ownership and maintenance, representing Capital Expenditure (CapEx).
Distinguishing between OpEx and CapEx helps determine the financial impact of the cloud migration strategy.

Key Concept

Identifying hybrid cloud models and distinguishing between CapEx and OpEx.
Question 13Question →

A retail company hosts its web applications across both Microsoft Azure and Amazon Web Services (AWS) platforms. The company does not own or maintain any physical data center infrastructure. Which cloud model is represented by this deployment?

Show answer & explanation

Answer: Multi-cloud

Answer

Multi-cloud
The correct answer is multi-cloud because the scenario describes a company using services from more than one public cloud provider (Microsoft Azure and AWS) and confirms they have no physical on-premises data center infrastructure.

Step-by-Step Solution

1
Analyze the deployment environment of the retail company.
The company uses two different public cloud providers: Microsoft Azure and Amazon Web Services (AWS).
Identifying the providers helps determine if multiple public cloud environments are involved.
2
Verify if there is any on-premises or private infrastructure in use.
The company does not own or maintain any physical data centers.
This rules out the hybrid cloud model, which requires combining private/on-premises resources with public cloud resources.
3
Select the cloud model that matches the use of multiple public cloud providers without on-premises resources.
A deployment using multiple public cloud platforms is defined as a multi-cloud model.
Defining the matching term establishes the correct answer.

Key Concept

Cloud Models (Public, Private, Hybrid, Multi-cloud)
Question 14Question →

An organization is evaluating how different cloud models align with various business requirements. Match each business scenario to the corresponding cloud model.

Click a left item, then click its matching right item

Items

A startup runs its customer portal using public cloud services, paying only for resources used, with no on-premises systems.
A hospital runs its patient records database on physical servers in its own datacenter, while hosting its public booking portal in Microsoft Azure.
A company deploys its applications on hardware dedicated exclusively to its organization, located in a private datacenter.
A media company distributes its workloads across Microsoft Azure and Google Cloud Platform to leverage specialized services from both providers.

Matches

Show answer & explanation

Answer

The startup using shared cloud services matches Public cloud; the hospital using local servers connected to Azure matches Hybrid cloud; the company using dedicated hardware in a private datacenter matches Private cloud; the media company using Azure and Google Cloud Platform matches Multi-cloud.
Each scenario maps directly to its defining cloud deployment model. The startup using shared, on-demand public cloud services maps to the Public cloud. The hospital combining an on-premises database with Azure services maps to the Hybrid cloud. The company using dedicated physical hardware in a private datacenter maps to the Private cloud. The media company using two public cloud providers (Azure and Google Cloud Platform) maps to Multi-cloud.

Step-by-Step Solution

1
Analyze the startup scenario.
The startup uses third-party services over the internet without owning any hardware, which represents the Public cloud model.
Public cloud resources are shared among multiple tenants and owned by a cloud provider.
2
Analyze the hospital scenario.
The hospital combines its on-premises patient database with public cloud resources in Azure, which represents the Hybrid cloud model.
Hybrid cloud bridges private/local infrastructure with public cloud environments.
3
Analyze the company scenario using dedicated hardware.
The organization uses dedicated hardware exclusively for its own workloads in a private environment, representing the Private cloud model.
Private cloud offers dedicated infrastructure that is not shared with other organizations.
4
Analyze the media company scenario.
The media company uses two distinct public cloud providers (Azure and Google Cloud Platform) to host its workloads, which represents the Multi-cloud model.
Multi-cloud refers to the use of services from multiple different public cloud vendors.

Key Concept

Cloud Models (Public, Private, Hybrid, Multi-cloud)
Question 15Question →

A startup company plans to launch a new mobile application. The company wants to minimize upfront costs, avoid purchasing physical hardware, and scale resources rapidly to meet user demand. Which cloud model should the company choose to meet these requirements?

Show answer & explanation

Answer: Public cloud

Answer

Public cloud
The public cloud model is correct because it offers a consumption-based spending model where there are no upfront infrastructure costs, and resources are shared and managed by the cloud provider, allowing the startup to scale resources instantly to match demand.

Step-by-Step Solution

1
Identify the key business requirements described in the scenario.
The company wants to avoid purchasing physical hardware (no CapEx), minimize upfront costs, and scale resources rapidly.
This establishes the constraints and goals of the deployment.
2
Compare the requirements against the characteristics of the cloud models.
The public cloud model is owned by a third-party provider, requires no hardware purchase, scales rapidly on demand, and follows a consumption-based pricing model.
This matches the startup's requirements perfectly.

Key Concept

Cloud Models (Public, Private, Hybrid, Multi-cloud)
Question 16Question →

Determine if the following statement is true or false: An organization utilizing a hybrid deployment model must migrate all of its local data center resources to a public cloud provider.

Show answer & explanation

Answer: False

Answer

False
The correct answer is False because a hybrid deployment model allows an organization to keep specific systems on-premises while moving others to the public cloud, rather than forcing a complete migration.

Step-by-Step Solution

1
Define the hybrid deployment model in cloud computing.
A hybrid deployment model combines local, on-premises private infrastructure with resources hosted by a public cloud provider.
Establishing the definition of the model is necessary to evaluate the accuracy of the statement.
2
Evaluate whether the model requires migrating all local resources.
Since the model explicitly allows keeping some workloads local while running others in the public cloud, a complete migration of all resources is not required.
Comparing the statement's claim of a mandatory complete migration against the definition of a hybrid model determines its truth value.

Key Concept

A hybrid model allows organizations to maintain on-premises infrastructure while utilizing public cloud resources, rather than requiring a total migration.
Question 17Question →

A financial institution maintains its core banking database on dedicated servers located within its own local data center. To handle seasonal traffic spikes, the institution hosts its public-facing loan application on Microsoft Azure. Which cloud deployment model is represented by this configuration?

Show answer & explanation

Answer: Hybrid cloud

Answer

Hybrid cloud
The correct answer is the hybrid cloud. A hybrid cloud model connects public cloud resources (like Microsoft Azure) with private, on-premises infrastructure (like a local data center). In this scenario, the financial institution uses both environments to meet its needs, keeping sensitive database resources on-premises while leveraging the public cloud for scalability during traffic spikes.

Step-by-Step Solution

1
Analyze the resource location and ownership described in the scenario.
The core database is kept on the organization's own dedicated hardware in its own local data center (private/on-premises), while the public application is hosted on Microsoft Azure (public cloud).
Identifying where the workloads run and who owns the hardware is the first step in determining the cloud model.
2
Determine which cloud model connects these two distinct environments.
A hybrid cloud model is defined by the integration of on-premises infrastructure (private) with public cloud services.
This matches the definition of a hybrid cloud, which allows data and apps to be shared between them.

Key Concept

Cloud Models (Public, Private, Hybrid, Multi-cloud)
Estimated Time:45s
Question 18Question →

An organization is evaluating different cloud models to determine the best approach for hosting its services. Match each cloud model to the description that best represents its typical implementation.

Click a left item, then click its matching right item

Items

Public cloud
Private cloud
Hybrid cloud
Multi-cloud

Matches

Show answer & explanation

Answer

Public cloud matches the description of running web applications on shared hardware infrastructure owned by a third-party provider. Private cloud matches hosting legacy applications on dedicated physical servers within a secure on-premises datacenter. Hybrid cloud matches connecting a local Active Directory server with Azure Active Directory. Multi-cloud matches distributing microservices across Microsoft Azure and Amazon Web Services (AWS) without connecting them.
Public cloud uses shared hardware from a third-party provider. Private cloud utilizes dedicated, single-tenant hardware on-premises. Hybrid cloud connects on-premises assets to public cloud resources. Multi-cloud uses multiple independent public cloud providers.

Step-by-Step Solution

1
Analyze the description involving third-party shared infrastructure.
This aligns with the public cloud model where resources are multi-tenant and managed by a cloud provider.
Public cloud is characterized by shared resources accessed via the internet without ownership of physical hardware.
2
Analyze the description of dedicated physical servers located in an on-premises datacenter.
This aligns with the private cloud model.
Private cloud provides exclusive use of resources by a single organization, often on-premises for maximum control and security.
3
Analyze the description of syncing on-premises Active Directory with Azure Active Directory.
This aligns with the hybrid cloud model.
A hybrid model connects private (on-premises) infrastructure to public cloud services to allow joint operation.
4
Analyze the description of using both Azure and AWS independently.
This aligns with the multi-cloud model.
Multi-cloud refers to using two or more public cloud providers simultaneously for distinct workloads without bridging them in a hybrid configuration.

Key Concept

Cloud deployment models (public, private, hybrid, and multi-cloud) determine resource ownership, accessibility, and integration levels.
Estimated Time:1m 0s
Question 19Question →

A research institute needs to run a temporary data simulation that requires high compute power for one week. The institute rents virtual machines from Microsoft Azure for the duration of the simulation and deletes them afterward. The physical servers hosting these virtual machines are shared with other Azure customers. Which cloud model is the institute using?

Show answer & explanation

Answer: Public cloud

Answer

Public cloud
The public cloud model is correct because the resources (virtual machines) are owned and operated by a third-party cloud service provider (Microsoft) and provisioned over the internet using shared physical hardware.

Step-by-Step Solution

1
Analyze resource ownership and sharing details in the scenario.
The infrastructure is owned by a third-party cloud provider (Microsoft) and the physical hardware is shared with other customers (multi-tenancy).
These are key characteristics of the public cloud model.
2
Check for local data center integration or dedicated single-tenant hardware.
There is no mention of local on-premises hardware or dedicated physical infrastructure.
This rules out both hybrid and private cloud models.

Key Concept

Public cloud model characteristics
Estimated Time:45s
Question 20Question →

Determine if the following statement is true or false: In a public cloud model, the underlying physical hardware is shared among multiple organizations, while each organization's resources are isolated from other tenants.

Show answer & explanation

Answer: True

Answer

True
In a public cloud, physical infrastructure is shared (multi-tenant) but logically isolated via virtualization.

Step-by-Step Solution

1
Identify the cloud model described in the statement.
The statement describes a public cloud model.
To establish the baseline rules of the deployment model.
2
Analyze resource sharing and isolation characteristics.
Public clouds use shared physical infrastructure with logical isolation between tenants.
To determine if the statement's description of shared hardware and isolated resources is correct.

Key Concept

Public Cloud Multi-Tenancy
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