1
Microsoft Azure Fundamentals
(AZ-900) – Advanced Practice
Exam 150 Multiple-Choice
Questions with Answers and
Rationales a well detailed one
written and graded
A+ upgraded
SECTION 1: CLOUD CONCEPTS (Questions 1–40)
1.1 Cloud Computing Fundamentals (Questions 1–10)
Question 1
A multinational corporation is evaluating cloud deployment models. They require a solution that
combines on-premises infrastructure with public cloud resources to handle seasonal traffic
spikes while maintaining sensitive data on-premises. Which cloud model best meets their
requirements?
, 2
A) Public cloud
B) Private cloud
C) Hybrid cloud
D) Community cloud
- detailed answer 100% correct :- C) Hybrid cloud
Rationale: A hybrid cloud combines on-premises (private) infrastructure with public cloud
services, allowing organizations to keep sensitive data on-premises while leveraging public cloud
elasticity for variable workloads. This model provides the flexibility to scale during peak demand
while maintaining control over critical data.
Question 2
Your company is migrating from an on-premises data center to Azure. The CFO wants to
understand the financial implications. Which statement correctly describes the difference
between Capital Expenditure (CapEx) and Operational Expenditure (OpEx) in cloud computing?
A) CapEx involves recurring monthly costs while OpEx involves upfront infrastructure purchases
B) CapEx is spending on physical infrastructure upfront with value reducing over time, while
OpEx is spending money now and being billed now with no upfront costs
C) Both CapEx and OpEx require significant upfront investment
D) OpEx is only applicable to on-premises environments
- detailed answer 100% correct :- B) CapEx is spending on physical infrastructure
upfront with value reducing over time, while OpEx is spending money now and being billed
now with no upfront costs
Rationale: Capital expenditure involves spending money on physical infrastructure upfront and
deducting that expense from taxes over time, with value reducing over time. Operational
expenditure involves spending money now and being billed now with no upfront costs—this is
the cloud consumption-based model where the cloud provider bears the CapEx.
Question 3
A startup is developing a new mobile application and wants to minimize initial infrastructure
costs while maintaining the ability to scale rapidly. Which cloud characteristic is most relevant to
this requirement?
A) High availability
B) Elasticity
, 3
C) Fault tolerance
D) Geographic redundancy
- detailed answer 100% correct :- B) Elasticity
Rationale: Elasticity is the ability of cloud computing to automatically compensate by adding
and removing resources as workload changes due to demand. This allows startups to start small
and scale up seamlessly as their user base grows, minimizing initial costs while maintaining
responsiveness to demand fluctuations.
Question 4
Which statement accurately describes the shared responsibility model in cloud computing?
A) The cloud provider is responsible for everything, including customer data and applications
B) The customer is responsible for everything, including the physical infrastructure
C) The cloud provider is responsible for the physical infrastructure, while the customer is
responsible for their data, applications, and access management
D) Responsibility is equally split 50/50 between provider and customer for all aspects
- detailed answer 100% correct :- C) The cloud provider is responsible for the
physical infrastructure, while the customer is responsible for their data, applications, and
access management
Rationale: In the shared responsibility model, the cloud provider is responsible for the physical
infrastructure, hardware, networking, and data center security. The customer is responsible for
their data, applications, identity management, and access controls. The division of responsibility
varies by service model (IaaS, PaaS, SaaS).
Question 5
An organization is considering moving their legacy on-premises applications to the cloud. They
want to understand the benefits of cloud computing. Which of the following is NOT a
characteristic of cloud computing?
A) Measured service
B) Resource pooling
C) Fixed capacity
D) Rapid elasticity
- detailed answer 100% correct :- C) Fixed capacity
, 4
Rationale: Fixed capacity is a characteristic of on-premises infrastructure, not cloud computing.
Cloud computing is defined by measured service, resource pooling, rapid elasticity, broad
network access, and on-demand self-service. Fixed capacity limits scalability and is contrary to
the elastic nature of cloud computing.
Question 6
What is the primary benefit of the consumption-based pricing model in Azure?
A) You pay the same amount regardless of usage
B) You only pay for the resources you use, with no upfront costs
C) You must commit to a minimum usage level each month
D) Pricing is fixed for the duration of your contract
- detailed answer 100% correct :- B) You only pay for the resources you use, with no
upfront costs
Rationale: The consumption-based model means you are billed based on actual resource
usage—you pay only for what you consume. There are no upfront costs, and you can scale
resources up or down as needed, aligning costs directly with business demand. This shifts CapEx
to OpEx.
Question 7
A healthcare company must maintain patient data within specific geographic boundaries due to
regulatory requirements. Which cloud model would be most appropriate?
A) Public cloud
B) Private cloud
C) Hybrid cloud
D) Any cloud model can meet this requirement depending on implementation
- detailed answer 100% correct :- D) Any cloud model can meet this requirement
depending on implementation
Rationale: Geographic data residency requirements can be met across all cloud models through
proper configuration. Azure provides regional data centers and sovereign regions to address
compliance needs. The choice of cloud model depends on other factors such as control
requirements, cost, and scalability needs.
Microsoft Azure Fundamentals
(AZ-900) – Advanced Practice
Exam 150 Multiple-Choice
Questions with Answers and
Rationales a well detailed one
written and graded
A+ upgraded
SECTION 1: CLOUD CONCEPTS (Questions 1–40)
1.1 Cloud Computing Fundamentals (Questions 1–10)
Question 1
A multinational corporation is evaluating cloud deployment models. They require a solution that
combines on-premises infrastructure with public cloud resources to handle seasonal traffic
spikes while maintaining sensitive data on-premises. Which cloud model best meets their
requirements?
, 2
A) Public cloud
B) Private cloud
C) Hybrid cloud
D) Community cloud
- detailed answer 100% correct :- C) Hybrid cloud
Rationale: A hybrid cloud combines on-premises (private) infrastructure with public cloud
services, allowing organizations to keep sensitive data on-premises while leveraging public cloud
elasticity for variable workloads. This model provides the flexibility to scale during peak demand
while maintaining control over critical data.
Question 2
Your company is migrating from an on-premises data center to Azure. The CFO wants to
understand the financial implications. Which statement correctly describes the difference
between Capital Expenditure (CapEx) and Operational Expenditure (OpEx) in cloud computing?
A) CapEx involves recurring monthly costs while OpEx involves upfront infrastructure purchases
B) CapEx is spending on physical infrastructure upfront with value reducing over time, while
OpEx is spending money now and being billed now with no upfront costs
C) Both CapEx and OpEx require significant upfront investment
D) OpEx is only applicable to on-premises environments
- detailed answer 100% correct :- B) CapEx is spending on physical infrastructure
upfront with value reducing over time, while OpEx is spending money now and being billed
now with no upfront costs
Rationale: Capital expenditure involves spending money on physical infrastructure upfront and
deducting that expense from taxes over time, with value reducing over time. Operational
expenditure involves spending money now and being billed now with no upfront costs—this is
the cloud consumption-based model where the cloud provider bears the CapEx.
Question 3
A startup is developing a new mobile application and wants to minimize initial infrastructure
costs while maintaining the ability to scale rapidly. Which cloud characteristic is most relevant to
this requirement?
A) High availability
B) Elasticity
, 3
C) Fault tolerance
D) Geographic redundancy
- detailed answer 100% correct :- B) Elasticity
Rationale: Elasticity is the ability of cloud computing to automatically compensate by adding
and removing resources as workload changes due to demand. This allows startups to start small
and scale up seamlessly as their user base grows, minimizing initial costs while maintaining
responsiveness to demand fluctuations.
Question 4
Which statement accurately describes the shared responsibility model in cloud computing?
A) The cloud provider is responsible for everything, including customer data and applications
B) The customer is responsible for everything, including the physical infrastructure
C) The cloud provider is responsible for the physical infrastructure, while the customer is
responsible for their data, applications, and access management
D) Responsibility is equally split 50/50 between provider and customer for all aspects
- detailed answer 100% correct :- C) The cloud provider is responsible for the
physical infrastructure, while the customer is responsible for their data, applications, and
access management
Rationale: In the shared responsibility model, the cloud provider is responsible for the physical
infrastructure, hardware, networking, and data center security. The customer is responsible for
their data, applications, identity management, and access controls. The division of responsibility
varies by service model (IaaS, PaaS, SaaS).
Question 5
An organization is considering moving their legacy on-premises applications to the cloud. They
want to understand the benefits of cloud computing. Which of the following is NOT a
characteristic of cloud computing?
A) Measured service
B) Resource pooling
C) Fixed capacity
D) Rapid elasticity
- detailed answer 100% correct :- C) Fixed capacity
, 4
Rationale: Fixed capacity is a characteristic of on-premises infrastructure, not cloud computing.
Cloud computing is defined by measured service, resource pooling, rapid elasticity, broad
network access, and on-demand self-service. Fixed capacity limits scalability and is contrary to
the elastic nature of cloud computing.
Question 6
What is the primary benefit of the consumption-based pricing model in Azure?
A) You pay the same amount regardless of usage
B) You only pay for the resources you use, with no upfront costs
C) You must commit to a minimum usage level each month
D) Pricing is fixed for the duration of your contract
- detailed answer 100% correct :- B) You only pay for the resources you use, with no
upfront costs
Rationale: The consumption-based model means you are billed based on actual resource
usage—you pay only for what you consume. There are no upfront costs, and you can scale
resources up or down as needed, aligning costs directly with business demand. This shifts CapEx
to OpEx.
Question 7
A healthcare company must maintain patient data within specific geographic boundaries due to
regulatory requirements. Which cloud model would be most appropriate?
A) Public cloud
B) Private cloud
C) Hybrid cloud
D) Any cloud model can meet this requirement depending on implementation
- detailed answer 100% correct :- D) Any cloud model can meet this requirement
depending on implementation
Rationale: Geographic data residency requirements can be met across all cloud models through
proper configuration. Azure provides regional data centers and sovereign regions to address
compliance needs. The choice of cloud model depends on other factors such as control
requirements, cost, and scalability needs.
