Microsoft Azure AZ-900 Practice Questions
and Study Notes 2026/2027 – Verified
Q&As with Detailed Rationales (Test Bank
Bundle - 88 Questions)
---
**QUESTION 1:**
Which Azure service provides a fully managed, serverless compute platform for running code without
managing infrastructure?
A) Azure Functions
B) Azure App Service
C) Azure Container Instances
D) Azure Virtual Machines
> 🎯 **CORRECT ANSWER:** A) Azure Functions
> 💡 **CLINICAL RATIONALE:** Functions is serverless event-driven compute. App Service hosts web
apps. ACI is containers. VMs are IaaS.
---
**QUESTION 2:**
What is the primary benefit of using Azure Availability Zones?
A) Protect data centers from localized failures
B) Reduce storage costs
C) Increase network speed
D) Simplify billing
> 🎯 **CORRECT ANSWER:** A) Protect data centers from localized failures
> 💡 **CLINICAL RATIONALE:** Availability Zones isolate data centers within a region. Not for
cost/speed/billing.
,---
**QUESTION 3:**
Which Azure storage service is designed for massive, unstructured data like images and videos?
A) Azure Blob Storage
B) Azure Files
C) Azure Queue Storage
D) Azure Table Storage
> 🎯 **CORRECT ANSWER:** A) Azure Blob Storage
> 💡 **CLINICAL RATIONALE:** Blob stores unstructured objects. Files is SMB shares. Queue is
messaging. Table is NoSQL.
---
**QUESTION 4:**
A company wants to migrate an on-premises SQL database to Azure with minimal changes. Which
service is most appropriate?
A) Azure SQL Database
B) Azure SQL Managed Instance
C) Azure Cosmos DB
D) Azure Database for MySQL
> 🎯 **CORRECT ANSWER:** B) Azure SQL Managed Instance
> 💡 **CLINICAL RATIONALE:** Managed Instance offers near-100% compatibility with SQL Server. SQL
DB is PaaS but less compatible. Cosmos/MySQL are different.
---
**QUESTION 5:**
Which Azure service is used to centrally manage and govern multiple subscriptions?
A) Azure Management Groups
B) Azure Resource Groups
C) Azure Policy
,D) Azure Blueprints
> 🎯 **CORRECT ANSWER:** A) Azure Management Groups
> 💡 **CLINICAL RATIONALE:** Management Groups organize subscriptions. Resource Groups organize
resources. Policy enforces rules. Blueprints deploy templates.
---
**QUESTION 6:**
What is the purpose of Azure Active Directory (Azure AD)?
A) Identity and access management for cloud resources
B) Data encryption
C) Network security
D) Backup and recovery
> 🎯 **CORRECT ANSWER:** A) Identity and access management for cloud resources
> 💡 **CLINICAL RATIONALE:** Azure AD handles authentication/authorization. Encryption via Key
Vault. Network via NSG. Backup via Azure Backup.
---
**QUESTION 7:**
Which pricing model allows you to pay for Azure resources only when they are used?
A) Pay-as-you-go
B) Reserved Instances
C) Spot Instances
D) Savings Plans
> 🎯 **CORRECT ANSWER:** A) Pay-as-you-go
> 💡 **CLINICAL RATIONALE:** Pay-as-you-go is consumption-based. Reserved/Savings require
commitment. Spot is discounted but interruptible.
---
**QUESTION 8:**
, Which Azure service provides a global content delivery network (CDN)?
A) Azure CDN
B) Azure Front Door
C) Azure Traffic Manager
D) Azure Load Balancer
> 🎯 **CORRECT ANSWER:** A) Azure CDN
> 💡 **CLINICAL RATIONALE:** Azure CDN caches content at edge. Front Door is global routing. Traffic
Manager is DNS load balancing. Load Balancer is regional.
---
**QUESTION 9:**
What is the primary function of Azure Resource Manager (ARM)?
A) Deploy and manage Azure resources via templates
B) Monitor resource performance
C) Secure network traffic
D) Store data backups
> 🎯 **CORRECT ANSWER:** A) Deploy and manage Azure resources via templates
> 💡 **CLINICAL RATIONALE:** ARM is the management layer for deployments. Monitoring via Azure
Monitor. Network via NSG. Backup via Azure Backup.
---
**QUESTION 10:**
Which Azure service is used to create a private, isolated network in the cloud?
A) Azure Virtual Network (VNet)
B) Azure VPN Gateway
C) Azure ExpressRoute
D) Azure Load Balancer
> 🎯 **CORRECT ANSWER:** A) Azure Virtual Network (VNet)
and Study Notes 2026/2027 – Verified
Q&As with Detailed Rationales (Test Bank
Bundle - 88 Questions)
---
**QUESTION 1:**
Which Azure service provides a fully managed, serverless compute platform for running code without
managing infrastructure?
A) Azure Functions
B) Azure App Service
C) Azure Container Instances
D) Azure Virtual Machines
> 🎯 **CORRECT ANSWER:** A) Azure Functions
> 💡 **CLINICAL RATIONALE:** Functions is serverless event-driven compute. App Service hosts web
apps. ACI is containers. VMs are IaaS.
---
**QUESTION 2:**
What is the primary benefit of using Azure Availability Zones?
A) Protect data centers from localized failures
B) Reduce storage costs
C) Increase network speed
D) Simplify billing
> 🎯 **CORRECT ANSWER:** A) Protect data centers from localized failures
> 💡 **CLINICAL RATIONALE:** Availability Zones isolate data centers within a region. Not for
cost/speed/billing.
,---
**QUESTION 3:**
Which Azure storage service is designed for massive, unstructured data like images and videos?
A) Azure Blob Storage
B) Azure Files
C) Azure Queue Storage
D) Azure Table Storage
> 🎯 **CORRECT ANSWER:** A) Azure Blob Storage
> 💡 **CLINICAL RATIONALE:** Blob stores unstructured objects. Files is SMB shares. Queue is
messaging. Table is NoSQL.
---
**QUESTION 4:**
A company wants to migrate an on-premises SQL database to Azure with minimal changes. Which
service is most appropriate?
A) Azure SQL Database
B) Azure SQL Managed Instance
C) Azure Cosmos DB
D) Azure Database for MySQL
> 🎯 **CORRECT ANSWER:** B) Azure SQL Managed Instance
> 💡 **CLINICAL RATIONALE:** Managed Instance offers near-100% compatibility with SQL Server. SQL
DB is PaaS but less compatible. Cosmos/MySQL are different.
---
**QUESTION 5:**
Which Azure service is used to centrally manage and govern multiple subscriptions?
A) Azure Management Groups
B) Azure Resource Groups
C) Azure Policy
,D) Azure Blueprints
> 🎯 **CORRECT ANSWER:** A) Azure Management Groups
> 💡 **CLINICAL RATIONALE:** Management Groups organize subscriptions. Resource Groups organize
resources. Policy enforces rules. Blueprints deploy templates.
---
**QUESTION 6:**
What is the purpose of Azure Active Directory (Azure AD)?
A) Identity and access management for cloud resources
B) Data encryption
C) Network security
D) Backup and recovery
> 🎯 **CORRECT ANSWER:** A) Identity and access management for cloud resources
> 💡 **CLINICAL RATIONALE:** Azure AD handles authentication/authorization. Encryption via Key
Vault. Network via NSG. Backup via Azure Backup.
---
**QUESTION 7:**
Which pricing model allows you to pay for Azure resources only when they are used?
A) Pay-as-you-go
B) Reserved Instances
C) Spot Instances
D) Savings Plans
> 🎯 **CORRECT ANSWER:** A) Pay-as-you-go
> 💡 **CLINICAL RATIONALE:** Pay-as-you-go is consumption-based. Reserved/Savings require
commitment. Spot is discounted but interruptible.
---
**QUESTION 8:**
, Which Azure service provides a global content delivery network (CDN)?
A) Azure CDN
B) Azure Front Door
C) Azure Traffic Manager
D) Azure Load Balancer
> 🎯 **CORRECT ANSWER:** A) Azure CDN
> 💡 **CLINICAL RATIONALE:** Azure CDN caches content at edge. Front Door is global routing. Traffic
Manager is DNS load balancing. Load Balancer is regional.
---
**QUESTION 9:**
What is the primary function of Azure Resource Manager (ARM)?
A) Deploy and manage Azure resources via templates
B) Monitor resource performance
C) Secure network traffic
D) Store data backups
> 🎯 **CORRECT ANSWER:** A) Deploy and manage Azure resources via templates
> 💡 **CLINICAL RATIONALE:** ARM is the management layer for deployments. Monitoring via Azure
Monitor. Network via NSG. Backup via Azure Backup.
---
**QUESTION 10:**
Which Azure service is used to create a private, isolated network in the cloud?
A) Azure Virtual Network (VNet)
B) Azure VPN Gateway
C) Azure ExpressRoute
D) Azure Load Balancer
> 🎯 **CORRECT ANSWER:** A) Azure Virtual Network (VNet)
