AZ-900: Microsoft Azure
Fundamentals|||questions and
answers with rationales/graded
A+/2026 update/100% correct
/instant download
Full Practice Exam (2026 Syllabus)
Exam Domains Covered:
• Domain 1: Describe Cloud Concepts (25–30%)
• Domain 2: Describe Azure Architecture & Services (35–40%)
• Domain 3: Describe Azure Management & Governance (30–35%)
Part 1: Cloud Concepts (Questions 1-25)
Q1. A startup wants to avoid spending millions on building a physical data center.
They want to pay only for the computing resources they use each month. Which
cloud computing benefit is described?
a) High latency
b) Economies of scale
c) Consumption-based pricing
d) Geographic redundancy
Correct Answer: c
Rationale: Consumption-based pricing (OpEx) allows you to pay only for the
resources you actually use, moving away from the Capital Expenditure (CapEx) of
buying hardware upfront .
Q2. You are trying to explain to a colleague that while Microsoft manages the
physical data centers, your company is responsible for securing the data inside
their Virtual Machines. Which model does this describe?
a) Agile responsibility model
,b) Shared responsibility model
c) Zero Trust model
d) Distributed responsibility model
Correct Answer: b
Rationale: The Shared Responsibility Model dictates that the cloud provider is
always responsible for the physical host, network, and data center, while the
customer is responsible for data, endpoints, and access management .
Q3. Match the cloud model to the correct description:
1. Public Cloud
2. Private Cloud
3. Hybrid Cloud
A. A combination of on-premises and public cloud services.
B. Services owned by a third-party provider, shared by multiple tenants.
C. A single-tenant environment fully controlled by one organization.
Correct Answer: 1-B, 2-C, 3-A
Rationale: Public is multi-tenant, Private is single-tenant/dedicated, and Hybrid is
a bridge between the two .
Q4. Which of the following is an example of Vertical Scaling?
a) Adding 5 additional Virtual Machines to handle traffic.
b) Changing the VM size from a Standard DS2 to a Standard DS4 (more
RAM/CPU).
c) Replicating the database to a secondary region.
d) Creating a Virtual Machine Scale Set.
Correct Answer: b
Rationale: Vertical scaling (Scale-Up) means increasing the power (CPU/RAM) of
an existing machine. Horizontal scaling (Scale-Out) means adding more instances .
Q5. True or False: In a PaaS (Platform as a Service) model, the customer is
responsible for applying security patches to the operating system.
Correct Answer: False
Rationale: In PaaS, the cloud provider manages the OS, middleware, and runtime.
The customer focuses on their application and data .
, Q6. An e-commerce website experiences massive traffic spikes only on "Black
Friday." They need the infrastructure to automatically add servers during the spike
and remove them afterward to save costs. What is this called?
a) High availability
b) Elasticity
c) Fault tolerance
d) Disaster recovery
Correct Answer: b
Rationale: Elasticity automatically scales resources up (during demand spikes) and
down (during low demand). Scalability is usually manual or planned; Elasticity is
automatic .
Q7. Which cloud service type provides the highest level of management by the
customer (least managed by the cloud provider)?
a) SaaS (Software as a Service)
b) PaaS (Platform as a Service)
c) IaaS (Infrastructure as a Service)
d) FaaS (Functions as a Service)
Correct Answer: c
Rationale: IaaS gives you the most control over the OS, storage, and deployed
applications, but you manage everything above the hypervisor .
Q8. You need to guarantee that your application remains accessible even if a server
fails. You deploy two VMs in an Availability Set. What benefit are you
prioritizing?
a) Agility
b) Scalability
c) High Availability
d) Geo-redundancy
Correct Answer: c
Rationale: High Availability ensures the application stays up and running (no
downtime) by eliminating single points of failure .
Q9. Your company is moving to the cloud to reduce the time required to deploy
new servers from 6 weeks (procurement + setup) to 5 minutes (API call). Which
cloud benefit is this?
a) Elasticity
Fundamentals|||questions and
answers with rationales/graded
A+/2026 update/100% correct
/instant download
Full Practice Exam (2026 Syllabus)
Exam Domains Covered:
• Domain 1: Describe Cloud Concepts (25–30%)
• Domain 2: Describe Azure Architecture & Services (35–40%)
• Domain 3: Describe Azure Management & Governance (30–35%)
Part 1: Cloud Concepts (Questions 1-25)
Q1. A startup wants to avoid spending millions on building a physical data center.
They want to pay only for the computing resources they use each month. Which
cloud computing benefit is described?
a) High latency
b) Economies of scale
c) Consumption-based pricing
d) Geographic redundancy
Correct Answer: c
Rationale: Consumption-based pricing (OpEx) allows you to pay only for the
resources you actually use, moving away from the Capital Expenditure (CapEx) of
buying hardware upfront .
Q2. You are trying to explain to a colleague that while Microsoft manages the
physical data centers, your company is responsible for securing the data inside
their Virtual Machines. Which model does this describe?
a) Agile responsibility model
,b) Shared responsibility model
c) Zero Trust model
d) Distributed responsibility model
Correct Answer: b
Rationale: The Shared Responsibility Model dictates that the cloud provider is
always responsible for the physical host, network, and data center, while the
customer is responsible for data, endpoints, and access management .
Q3. Match the cloud model to the correct description:
1. Public Cloud
2. Private Cloud
3. Hybrid Cloud
A. A combination of on-premises and public cloud services.
B. Services owned by a third-party provider, shared by multiple tenants.
C. A single-tenant environment fully controlled by one organization.
Correct Answer: 1-B, 2-C, 3-A
Rationale: Public is multi-tenant, Private is single-tenant/dedicated, and Hybrid is
a bridge between the two .
Q4. Which of the following is an example of Vertical Scaling?
a) Adding 5 additional Virtual Machines to handle traffic.
b) Changing the VM size from a Standard DS2 to a Standard DS4 (more
RAM/CPU).
c) Replicating the database to a secondary region.
d) Creating a Virtual Machine Scale Set.
Correct Answer: b
Rationale: Vertical scaling (Scale-Up) means increasing the power (CPU/RAM) of
an existing machine. Horizontal scaling (Scale-Out) means adding more instances .
Q5. True or False: In a PaaS (Platform as a Service) model, the customer is
responsible for applying security patches to the operating system.
Correct Answer: False
Rationale: In PaaS, the cloud provider manages the OS, middleware, and runtime.
The customer focuses on their application and data .
, Q6. An e-commerce website experiences massive traffic spikes only on "Black
Friday." They need the infrastructure to automatically add servers during the spike
and remove them afterward to save costs. What is this called?
a) High availability
b) Elasticity
c) Fault tolerance
d) Disaster recovery
Correct Answer: b
Rationale: Elasticity automatically scales resources up (during demand spikes) and
down (during low demand). Scalability is usually manual or planned; Elasticity is
automatic .
Q7. Which cloud service type provides the highest level of management by the
customer (least managed by the cloud provider)?
a) SaaS (Software as a Service)
b) PaaS (Platform as a Service)
c) IaaS (Infrastructure as a Service)
d) FaaS (Functions as a Service)
Correct Answer: c
Rationale: IaaS gives you the most control over the OS, storage, and deployed
applications, but you manage everything above the hypervisor .
Q8. You need to guarantee that your application remains accessible even if a server
fails. You deploy two VMs in an Availability Set. What benefit are you
prioritizing?
a) Agility
b) Scalability
c) High Availability
d) Geo-redundancy
Correct Answer: c
Rationale: High Availability ensures the application stays up and running (no
downtime) by eliminating single points of failure .
Q9. Your company is moving to the cloud to reduce the time required to deploy
new servers from 6 weeks (procurement + setup) to 5 minutes (API call). Which
cloud benefit is this?
a) Elasticity
