WGU D320 COMPLETE COMPREHENSIVE QUESTIONS AND CORRECT
SOLUTIONS OBJECTIVE ASSESSMENT NEWEST 2026 [ALREADY GRADED
A+]
DOMAIN 1: CLOUD CONCEPTS, ARCHITECTURE &
DESIGN (Questions 1-25)
Question 1
Which of the following cloud service models provides the customer with the
MOST control over the underlying infrastructure?
A) Software as a Service (SaaS)
B) Platform as a Service (PaaS)
C) Infrastructure as a Service (IaaS)
D) Function as a Service (FaaS)
Correct Answer: C
Rationale: IaaS provides the customer with the most control over the underlying
infrastructure, including the operating system, storage, and deployed
applications. The cloud provider manages only the physical hardware,
networking, and virtualization layer. SaaS (A) provides the least control, and
PaaS (B) is intermediate.
Question 2
What are the five essential characteristics of cloud computing according to
NIST SP 800-145? (Select all that apply)
A) On-demand self-service
B) Broad network access
C) Resource pooling
D) Rapid elasticity
,E) Measured service
F) All of the above
Correct Answer: F
Rationale: NIST defines five essential characteristics: on-demand self-service,
broad network access, resource pooling, rapid elasticity, and measured
service. All five are required for a service to be considered cloud computing.
Question 3
Which cloud deployment model is characterized by exclusive use by a single
organization with multiple business units?
A) Public cloud
B) Private cloud
C) Community cloud
D) Hybrid cloud
Correct Answer: B
Rationale: A private cloud is provisioned for exclusive use by a single
organization comprising multiple consumers (e.g., business units). It may be
owned, managed, and operated by the organization, a third party, or a
combination.
Question 4
A company wants to leverage the benefits of both on-premises and public cloud
resources while maintaining the ability to burst to the cloud during peak
demand. Which deployment model is MOST appropriate?
A) Private cloud
B) Public cloud
C) Community cloud
D) Hybrid cloud
Correct Answer: D
,Rationale: A hybrid cloud combines two or more distinct cloud infrastructures
(private, community, or public) that remain unique entities but are bound
together by standardized or proprietary technology enabling data and
application portability. This allows "cloud bursting" to handle peak demand.
Question 5
Which cloud service model provides a platform allowing customers to develop,
run, and manage applications without the complexity of building and maintaining
the underlying infrastructure?
A) IaaS
B) PaaS
C) SaaS
D) DaaS
Correct Answer: B
Rationale: Platform as a Service (PaaS) provides a platform that allows
customers to develop, run, and manage applications without the complexity of
building and maintaining the underlying infrastructure. Examples include AWS
Elastic Beanstalk, Google App Engine, and Azure App Services.
Question 6
Which of the following is an example of "measured service" in cloud computing?
A) Provisioning a virtual machine in minutes
B) Accessing cloud services from any device with internet connectivity
C) Paying for only the resources consumed on an hourly basis
D) Sharing physical resources among multiple tenants
Correct Answer: C
Rationale: Measured service means that cloud systems automatically control
and optimize resource use by leveraging a metering capability at some level of
abstraction appropriate to the type of service. Customers pay for only what they
consume.
, Question 7
What is the primary benefit of "resource pooling" in cloud computing?
A) Enhanced security
B) Cost efficiency through economies of scale
C) Increased control over data location
D) Faster disaster recovery
Correct Answer: B
Rationale: Resource pooling allows the provider's computing resources to be
pooled to serve multiple consumers using a multi-tenant model. This enables
economies of scale, making cloud services more cost-effective than dedicated
infrastructure.
Question 8
The Cloud Security Alliance (CSA) publishes which document to guide cloud
security best practices?
A) NIST SP 800-53
B) ISO 27001
C) Security Guidance for Critical Areas of Focus in Cloud Computing
D) PCI DSS 3.2
Correct Answer: C
Rationale: The CSA Security Guidance for Critical Areas of Focus in Cloud
Computing provides a comprehensive framework for cloud security best
practices, covering governance, legal issues, compliance, information
management, and security architecture.
Question 9
SOLUTIONS OBJECTIVE ASSESSMENT NEWEST 2026 [ALREADY GRADED
A+]
DOMAIN 1: CLOUD CONCEPTS, ARCHITECTURE &
DESIGN (Questions 1-25)
Question 1
Which of the following cloud service models provides the customer with the
MOST control over the underlying infrastructure?
A) Software as a Service (SaaS)
B) Platform as a Service (PaaS)
C) Infrastructure as a Service (IaaS)
D) Function as a Service (FaaS)
Correct Answer: C
Rationale: IaaS provides the customer with the most control over the underlying
infrastructure, including the operating system, storage, and deployed
applications. The cloud provider manages only the physical hardware,
networking, and virtualization layer. SaaS (A) provides the least control, and
PaaS (B) is intermediate.
Question 2
What are the five essential characteristics of cloud computing according to
NIST SP 800-145? (Select all that apply)
A) On-demand self-service
B) Broad network access
C) Resource pooling
D) Rapid elasticity
,E) Measured service
F) All of the above
Correct Answer: F
Rationale: NIST defines five essential characteristics: on-demand self-service,
broad network access, resource pooling, rapid elasticity, and measured
service. All five are required for a service to be considered cloud computing.
Question 3
Which cloud deployment model is characterized by exclusive use by a single
organization with multiple business units?
A) Public cloud
B) Private cloud
C) Community cloud
D) Hybrid cloud
Correct Answer: B
Rationale: A private cloud is provisioned for exclusive use by a single
organization comprising multiple consumers (e.g., business units). It may be
owned, managed, and operated by the organization, a third party, or a
combination.
Question 4
A company wants to leverage the benefits of both on-premises and public cloud
resources while maintaining the ability to burst to the cloud during peak
demand. Which deployment model is MOST appropriate?
A) Private cloud
B) Public cloud
C) Community cloud
D) Hybrid cloud
Correct Answer: D
,Rationale: A hybrid cloud combines two or more distinct cloud infrastructures
(private, community, or public) that remain unique entities but are bound
together by standardized or proprietary technology enabling data and
application portability. This allows "cloud bursting" to handle peak demand.
Question 5
Which cloud service model provides a platform allowing customers to develop,
run, and manage applications without the complexity of building and maintaining
the underlying infrastructure?
A) IaaS
B) PaaS
C) SaaS
D) DaaS
Correct Answer: B
Rationale: Platform as a Service (PaaS) provides a platform that allows
customers to develop, run, and manage applications without the complexity of
building and maintaining the underlying infrastructure. Examples include AWS
Elastic Beanstalk, Google App Engine, and Azure App Services.
Question 6
Which of the following is an example of "measured service" in cloud computing?
A) Provisioning a virtual machine in minutes
B) Accessing cloud services from any device with internet connectivity
C) Paying for only the resources consumed on an hourly basis
D) Sharing physical resources among multiple tenants
Correct Answer: C
Rationale: Measured service means that cloud systems automatically control
and optimize resource use by leveraging a metering capability at some level of
abstraction appropriate to the type of service. Customers pay for only what they
consume.
, Question 7
What is the primary benefit of "resource pooling" in cloud computing?
A) Enhanced security
B) Cost efficiency through economies of scale
C) Increased control over data location
D) Faster disaster recovery
Correct Answer: B
Rationale: Resource pooling allows the provider's computing resources to be
pooled to serve multiple consumers using a multi-tenant model. This enables
economies of scale, making cloud services more cost-effective than dedicated
infrastructure.
Question 8
The Cloud Security Alliance (CSA) publishes which document to guide cloud
security best practices?
A) NIST SP 800-53
B) ISO 27001
C) Security Guidance for Critical Areas of Focus in Cloud Computing
D) PCI DSS 3.2
Correct Answer: C
Rationale: The CSA Security Guidance for Critical Areas of Focus in Cloud
Computing provides a comprehensive framework for cloud security best
practices, covering governance, legal issues, compliance, information
management, and security architecture.
Question 9
