AZ-900 Question #128: Real Exam Question with Answer & Explanation

Question

Hotspot Question Which cloud deployment solution is used for Azure virtual machines and Azure SQL databases? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point. Answer:

Options

• __typehotspot
• variantdropdown

Explanation

Azure Virtual Machines provide fundamental compute resources (IaaS), while Azure SQL Databases offer a fully managed database environment (PaaS).

Approach. For 'Azure virtual machines', you must select 'Infrastructure as a service (IaaS)'. VMs provide virtualized computing resources where Microsoft manages the physical hardware, but you are responsible for managing the operating system, middleware, runtime, and applications. For 'Azure SQL databases', you must select 'Platform as a service (PaaS)'. Azure SQL Database is a fully managed service; Microsoft handles the underlying infrastructure, OS, database engine updates, and backups, leaving you to manage only the database schema and data.

Common mistakes.

• common_mistake. A frequent mistake is misclassifying 'Azure SQL databases' as IaaS. While installing SQL Server manually on an Azure Virtual Machine constitutes an IaaS deployment, the specific service named 'Azure SQL Database' is a managed PaaS offering. Selecting SaaS is incorrect for both, as SaaS refers to complete software solutions hosted for end-users (like Office 365), not raw infrastructure or database hosting platforms.

Concept tested. Cloud Computing Service Models (IaaS vs. PaaS vs. SaaS)

Reference. https://learn.microsoft.com/en-us/training/modules/describe-cloud-service-types/

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