Microsoft AZ-900 Azure Fundamentals Practice Exam

A startup is deciding between building their own datacenter and using Azure. They want to convert large upfront hardware costs into predictable monthly operational expenses.

Which cloud benefit does this describe?

1. Geo-distribution
2. Shift from capital expenditure (CapEx) to operational expenditure (OpEx)
3. Scalability
4. High availability

A company is moving workloads to Azure and wants to know which security tasks it still owns versus which Microsoft handles, depending on the service model.

Under the shared responsibility model, which items are ALWAYS the customer’s responsibility, regardless of IaaS, PaaS, or SaaS?

1. The physical datacenter, physical hosts, and physical network
2. Data, and the identities and accounts that access it
3. The hypervisor and the underlying compute fabric
4. Nothing — Microsoft is responsible for everything in the cloud

A company needs complete control over their operating system and middleware but does not want to manage physical hardware.

Which cloud service type meets this need?

1. Platform as a Service, where the provider manages the OS while customers deploy code
2. Software as a Service, where the provider manages all layers including the application
3. Infrastructure as a Service, where customers manage the OS and middleware while the provider handles hardware
4. Serverless, where the provider manages all infrastructure and scales automatically

A retail chain needs their e-commerce platform available 99.99% of the time, even during a full regional Azure outage.

Which cloud concept addresses this requirement?

1. Cost optimization, reducing spend through reserved capacity
2. High availability through redundancy across multiple geographic regions
3. Agility, enabling rapid deployment of new features within minutes
4. Elasticity, automatically adding or removing resources on demand

An organization needs to group Azure resources that share the same lifecycle, permissions, and billing tags for a marketing project.

Which Azure construct should they use?

1. An Azure subscription, serving as the primary billing boundary
2. A resource group, organizing resources that share lifecycle, permissions, and tags
3. A management group, organizing multiple subscriptions under one governance hierarchy
4. An availability zone, providing physically separate datacenters within a region

A company evaluates Azure VMs, App Service, and Functions. They want code to run only on events, with zero cost when idle.

Which service should they select?

1. Azure Functions on the Consumption plan, executing code only on events with per-execution billing
2. Azure App Service, hosting web apps on always-available managed infrastructure
3. Azure Container Instances, running containers with per-second billing while active
4. Azure Virtual Machines, providing full OS control with per-second billing while running

A multinational needs a database that replicates automatically across three Azure regions with single-digit millisecond reads globally.

Which service provides this?

1. Azure Cosmos DB, with turnkey multi-region distribution and guaranteed low-latency reads
2. Azure Database for MySQL Flexible Server, with zone-redundant high availability
3. Azure Table Storage, providing simple key-value access across storage regions
4. Azure SQL Database, with active geo-replication providing readable secondaries

A dev team needs a private container image registry integrated with Azure, supporting geo-replication and vulnerability scanning.

Which service should they use?

1. Docker Hub, a public registry with community-maintained image libraries
2. Azure Blob Storage, configured with container-organized folders for image files
3. GitHub Container Registry, hosting images alongside source-code repositories
4. Azure Container Registry, offering private registries with geo-replication and security scanning

A CFO wants to understand Azure spending by department and set budgets with alerts when spending approaches limits.

Which Azure service provides this financial visibility?

1. Azure Monitor, tracking resource performance metrics, logs, and telemetry
2. Azure Policy, evaluating resource configuration compliance
3. Azure Advisor, offering optimization recommendations across cost, security, and performance
4. Microsoft Cost Management, providing cost analysis, budgets, and spending alerts

A CTO wants to prevent teams from creating expensive VM sizes in development subscriptions while allowing all sizes in production.

Which governance tool enforces this restriction?

1. Azure Policy, with an allowed-VM-SKU definition assigned to the development subscription
2. The RBAC Reader role, assigned to developers to prevent all resource creation
3. Azure Advisor, generating weekly cost-optimization recommendations
4. Resource tags, labeling VMs by cost center for later reporting