Microsoft AZ-900 Exam Study Guide 2025: Complete Azure
Fundamentals Certification Prep with Practice Questions and
Expert Tips
Question 1: Your company has datacenters in Los Angeles and New York. The company has a
Microsoft Azure subscription. You are configuring the two datacenters as geo-clustered sites for
site resiliency. You need to recommend an Azure storage redundancy option. You have the
following data storage requirements:
• Data must be stored on multiple nodes.
• Data must be stored on nodes in separate geographic locations.1
• Data can be read from the secondary location as well as from the primary location 2
Which of the following Azure stored redundancy options should you recommend?3
A. Geo-redundant storage4 (GRS)
B. Read-access geo-redundant storage (RA-GRS)
C. Zone-redundant storage (ZRS)
D. Locally redundant storage (LRS)
Correct Answer: B. Read-access geo-redundant storage (RA-GRS)
Rationale:
• RA-GRS (Read-Access Geo-Redundant Storage) meets all requirements: it stores data on
multiple nodes, replicates it to a secondary geographic location (for geo-clustering and
site resiliency), and crucially allows read access from both the primary and secondary
locations.
• GRS (Geo-redundant storage) replicates data geographically but does not guarantee read
access from the secondary region.
• ZRS (Zone-redundant storage) replicates data across availability zones within a single
region, not separate geographic locations.
• LRS (Locally redundant storage) replicates data within a single data center, not across
geographic locations.
,Question 2: Your company's Azure subscription includes a Basic support plan. They would like to
request an assessment of an Azure environment's design from Microsoft. This is, however, not
supported by the existing plan. You want to make sure that the company subscribes to a
support plan that allows this functionality, while keeping expenses to a minimum. 5
Solution: You recommend that the company subscribes to the Professional Direct support plan.6
Does the solution meet the go7al?
A. Yes
B. No
Correct Answer: B. No
Rationale: While the Professional Direct support plan does offer architectural guidance and
design assessments, it is not the minimum expense plan that provides this functionality. The
Azure Standard support plan (or higher) typically includes architectural guidance or design
review capabilities, making it a more cost-effective option than Professional Direct for this
specific requirement.
Question 3: You are tasked with deploying Azure virtual machines for your company. You need
to make use of the appropriate cloud deployment solution.
Solution: You should make use of Software as a Service (SaaS).
Does the solution meet the goal?
A. Yes
B. No
Correct Answer: B. No
Rationale: Deploying Azure Virtual Machines (VMs) means you are responsible for managing
the operating system, applications, and other software on the VM. This model, where the cloud
provider manages the underlying infrastructure but you manage the virtualized compute, is
known as Infrastructure as a Service (IaaS). Software as a Service (SaaS) refers to consuming
fully managed applications (e.g., Microsoft 365), where you have no control over the underlying
infrastructure or OS.
, Question 4: You are tasked with deploying Azure virtual machines for your company. You need
to make use of the appropriate cloud deployment solution.
Solution: You should make use of Platform as a Service (PaaS).
Does the solution meet the goal?
A. Yes
B. No
Correct Answer: B. No
Rationale: Platform as a Service (PaaS) provides a platform for developing, running, and
managing applications without the complexity of building and maintaining the infrastructure
(OS, runtime, middleware). While it's excellent for deploying applications, directly deploying and
managing Azure Virtual Machines, where you control the operating system, falls under
Infrastructure as a Service (IaaS), not PaaS.
Question 5: You are tasked with deploying Azure virtual machines for your company. You need
to make use of the appropriate cloud deployment solution.
Solution: You should make use of Infrastructure as a Service (IaaS).
Does the solution meet the goal?
A. Yes
B. No
Correct Answer: A. Yes
Rationale: Infrastructure as a Service (IaaS) is the cloud service model where the cloud provider
(Azure) provides virtualized computing resources, including virtual machines, storage, and
networking. Users have control over the operating systems, applications, and other software
deployed on these VMs. Therefore, deploying Azure Virtual Machines is a direct application of
IaaS.
Question 6: Your developers have created 10 web applications that must be hosted on Azure.
You need to determine which Azure web tier plan to host the web apps. The web tier plan must
meet the following requirements:8
• The web apps will use custom domains.9
Fundamentals Certification Prep with Practice Questions and
Expert Tips
Question 1: Your company has datacenters in Los Angeles and New York. The company has a
Microsoft Azure subscription. You are configuring the two datacenters as geo-clustered sites for
site resiliency. You need to recommend an Azure storage redundancy option. You have the
following data storage requirements:
• Data must be stored on multiple nodes.
• Data must be stored on nodes in separate geographic locations.1
• Data can be read from the secondary location as well as from the primary location 2
Which of the following Azure stored redundancy options should you recommend?3
A. Geo-redundant storage4 (GRS)
B. Read-access geo-redundant storage (RA-GRS)
C. Zone-redundant storage (ZRS)
D. Locally redundant storage (LRS)
Correct Answer: B. Read-access geo-redundant storage (RA-GRS)
Rationale:
• RA-GRS (Read-Access Geo-Redundant Storage) meets all requirements: it stores data on
multiple nodes, replicates it to a secondary geographic location (for geo-clustering and
site resiliency), and crucially allows read access from both the primary and secondary
locations.
• GRS (Geo-redundant storage) replicates data geographically but does not guarantee read
access from the secondary region.
• ZRS (Zone-redundant storage) replicates data across availability zones within a single
region, not separate geographic locations.
• LRS (Locally redundant storage) replicates data within a single data center, not across
geographic locations.
,Question 2: Your company's Azure subscription includes a Basic support plan. They would like to
request an assessment of an Azure environment's design from Microsoft. This is, however, not
supported by the existing plan. You want to make sure that the company subscribes to a
support plan that allows this functionality, while keeping expenses to a minimum. 5
Solution: You recommend that the company subscribes to the Professional Direct support plan.6
Does the solution meet the go7al?
A. Yes
B. No
Correct Answer: B. No
Rationale: While the Professional Direct support plan does offer architectural guidance and
design assessments, it is not the minimum expense plan that provides this functionality. The
Azure Standard support plan (or higher) typically includes architectural guidance or design
review capabilities, making it a more cost-effective option than Professional Direct for this
specific requirement.
Question 3: You are tasked with deploying Azure virtual machines for your company. You need
to make use of the appropriate cloud deployment solution.
Solution: You should make use of Software as a Service (SaaS).
Does the solution meet the goal?
A. Yes
B. No
Correct Answer: B. No
Rationale: Deploying Azure Virtual Machines (VMs) means you are responsible for managing
the operating system, applications, and other software on the VM. This model, where the cloud
provider manages the underlying infrastructure but you manage the virtualized compute, is
known as Infrastructure as a Service (IaaS). Software as a Service (SaaS) refers to consuming
fully managed applications (e.g., Microsoft 365), where you have no control over the underlying
infrastructure or OS.
, Question 4: You are tasked with deploying Azure virtual machines for your company. You need
to make use of the appropriate cloud deployment solution.
Solution: You should make use of Platform as a Service (PaaS).
Does the solution meet the goal?
A. Yes
B. No
Correct Answer: B. No
Rationale: Platform as a Service (PaaS) provides a platform for developing, running, and
managing applications without the complexity of building and maintaining the infrastructure
(OS, runtime, middleware). While it's excellent for deploying applications, directly deploying and
managing Azure Virtual Machines, where you control the operating system, falls under
Infrastructure as a Service (IaaS), not PaaS.
Question 5: You are tasked with deploying Azure virtual machines for your company. You need
to make use of the appropriate cloud deployment solution.
Solution: You should make use of Infrastructure as a Service (IaaS).
Does the solution meet the goal?
A. Yes
B. No
Correct Answer: A. Yes
Rationale: Infrastructure as a Service (IaaS) is the cloud service model where the cloud provider
(Azure) provides virtualized computing resources, including virtual machines, storage, and
networking. Users have control over the operating systems, applications, and other software
deployed on these VMs. Therefore, deploying Azure Virtual Machines is a direct application of
IaaS.
Question 6: Your developers have created 10 web applications that must be hosted on Azure.
You need to determine which Azure web tier plan to host the web apps. The web tier plan must
meet the following requirements:8
• The web apps will use custom domains.9
