AZ-900 Describe Azure architecture and services Practice Test 20 — 15 Questions

Question 1

Which Azure service provides source control, CI/CD pipelines, project management, and artifact management in a single platform?

Accepted Answer

Azure DevOps. Azure DevOps is the correct answer because it is a comprehensive Microsoft platform that integrates source control (Git or TFVC), CI/CD pipelines (Azure Pipelines), project management (Azure Boards with Scrum/Kanban), and artifact management (Azure Artifacts) into a single, unified service. This all-in-one approach enables teams to manage the entire application lifecycle without needing separate tools for each function.

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GitHub Enterprise

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Azure App Service

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Azure Resource Manager

Question 2

Which Azure service enables you to connect to an Azure virtual machine using a web browser without exposing RDP/SSH ports to the internet?

Accepted Answer

Azure Bastion. Azure Bastion is a fully managed PaaS service that provides secure and seamless RDP/SSH connectivity to Azure virtual machines directly from the Azure portal using a web browser. It eliminates the need for public IP addresses on VMs and does not expose RDP/SSH ports to the internet, as all traffic is tunneled through the Azure backbone network over TLS.

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Azure VPN Gateway Point-to-Site

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Azure AD Application Proxy

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Azure Firewall Just-In-Time access

Question 3

Which Azure service provides a fully managed, cloud-based backup solution for protecting Azure VMs, SQL databases, and on-premises servers?

Accepted Answer

Azure Backup. Azure Backup is the correct service because it provides a fully managed, cloud-based backup solution specifically designed to protect Azure VMs, SQL databases, and on-premises servers. It leverages the Azure Backup vault to store recovery points and supports policy-based scheduling, long-term retention, and application-consistent backups for these workloads.

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Azure Site Recovery

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Azure Archive Storage

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Azure Blob Storage snapshots

Question 4

Which Azure service provides intelligent search capabilities with AI-powered features like OCR, entity recognition, and key phrase extraction?

Accepted Answer

Azure Cognitive Search. Azure Cognitive Search (now Azure AI Search) is the correct answer because it is a cloud search-as-a-service solution that integrates AI-powered capabilities such as OCR (optical character recognition), entity recognition, and key phrase extraction via built-in cognitive skills. These skills enrich the indexing pipeline, allowing unstructured data to be transformed into searchable, structured content without custom ML code.

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Azure Form Recognizer

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Azure Language Understanding

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Azure Text Analytics

Question 5

What type of data does Azure Table Storage store?

Accepted Answer

Structured NoSQL data in a key-attribute entity model. Azure Table Storage is a NoSQL key-attribute store that stores structured, schema-less data. Each entity is a set of properties (attributes) with a partition key and row key, enabling fast access to semi-structured data like user profiles or device metadata.

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Unstructured binary data like images and videos

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Relational data with complex joins and foreign keys

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Files shared via SMB protocol across Windows machines

Question 6

Which Azure service provides a managed, serverless SQL database that scales automatically and pauses when not in use?

Accepted Answer

Azure SQL Database Serverless. Azure SQL Database Serverless is the correct answer because it is a compute tier for single databases that automatically scales compute resources based on workload demand and pauses the database during periods of inactivity, charging only for storage when paused. This aligns directly with the question's requirement for a managed, serverless SQL database that scales automatically and pauses when not in use.

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Azure SQL Database General Purpose tier

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Azure Cosmos DB Serverless

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Azure SQL Managed Instance

Question 7

Which Azure service provides a fully managed, cloud-hosted Kubernetes environment for AI and machine learning workloads?

Accepted Answer

Azure Kubernetes Service with GPU nodes. Azure Kubernetes Service (AKS) with GPU nodes is the correct answer because it provides a fully managed Kubernetes cluster that can be configured with GPU-enabled virtual machines, making it ideal for running AI and machine learning workloads that require accelerated computing. AKS handles the control plane, patching, and scaling, while allowing you to deploy containerized ML models or training jobs using Kubernetes orchestration.

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Azure Machine Learning compute clusters

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Azure Batch AI

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Azure Neural Network Computing

Question 8

Which Azure service provides network address translation for outbound internet connectivity from private subnets without public IP addresses on individual resources?

Accepted Answer

Azure NAT Gateway. Azure NAT Gateway is the correct service because it is specifically designed to provide outbound internet connectivity for resources in private subnets without requiring public IP addresses on individual VMs. It uses source network address translation (SNAT) to map private IPs to a single public IP or prefix, enabling outbound traffic while preventing inbound connections from the internet.

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Azure Load Balancer with outbound rules

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Azure Firewall

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Azure VPN Gateway

Question 9

Which Azure service acts as a central networking hub connecting multiple virtual networks and on-premises networks together?

Accepted Answer

Azure Virtual WAN. Azure Virtual WAN is a networking service that provides a centralized hub-and-spoke architecture, enabling connectivity between multiple virtual networks (VNets) and on-premises networks through a single managed hub. It aggregates VPN, ExpressRoute, and VNet-to-VNet connections, simplifying routing and policy management across hybrid and multi-site environments.

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Azure VNet Peering

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Azure ExpressRoute

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Azure Private Link

Question 10

Which Azure database service provides a fully managed MariaDB database in the cloud?

Accepted Answer

Azure Database for MariaDB. Azure Database for MariaDB is the correct answer because it is the specific Azure service designed to provide a fully managed, enterprise-ready MariaDB database in the cloud. MariaDB is a community-developed fork of MySQL, and Azure offers a dedicated managed service for it, including built-in high availability, automated backups, and scaling, without requiring you to manage the underlying infrastructure.

Answer

Azure Database for MySQL

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Azure SQL Database

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Azure Database for PostgreSQL

Question 11

What does Azure Auto-Shutdown for virtual machines provide?

Accepted Answer

Automatic daily power-off of VMs at a configured time to reduce costs. Azure Auto-Shutdown is a cost-saving feature that automatically powers off virtual machines at a user-defined schedule (e.g., nightly at 7 PM). It helps reduce compute costs by ensuring VMs are not running when not needed, but does not delete or modify the VM's configuration or resources.

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Automatic deletion of VMs that haven't been used for 30 days

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Automatic scaling down of VM CPU when under low utilization

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Automatic failover of VMs to another region during outages

Question 12

Which Azure service provides a high-performance computing environment for running scientific, financial, and engineering simulations?

Accepted Answer

Azure Batch. Azure Batch is a cloud-based job scheduling and compute management service designed for large-scale parallel and high-performance computing (HPC) workloads. It automatically provisions and manages a pool of virtual machines, installs the required software, schedules tasks, and scales resources based on job demands, making it ideal for running scientific simulations, financial risk modeling, and engineering analysis.

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Azure Functions

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Azure Container Instances

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Azure App Service

Question 13

Which Azure compute size family is optimized for memory-intensive workloads like large in-memory analytics or SAP HANA?

Accepted Answer

Memory-optimized VMs (M-series, E-series). Memory-optimized VMs, such as the M-series and E-series, are designed with a high memory-to-core ratio and large memory capacities (up to 12 TB for M-series) to handle workloads that require massive amounts of RAM, such as large in-memory analytics and SAP HANA. SAP HANA specifically requires certified VM sizes with sufficient memory to load the entire database into RAM, and Azure's M-series is SAP-certified for this purpose.

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Compute-optimized VMs (Fsv2-series)

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Storage-optimized VMs (Lsv2-series)

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GPU VMs (NC-series)

Question 14

Which Azure storage feature enables you to recover previous versions of blob files that were accidentally deleted or overwritten?

Accepted Answer

Blob versioning and soft delete. Blob versioning and soft delete work together to protect blob data. Soft delete retains deleted blobs for a specified retention period, while versioning automatically saves previous versions of blobs when they are overwritten or deleted. This allows you to recover blob files to any previous state, directly addressing the scenario of accidental deletion or overwrite.

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Azure Backup for Blob Storage

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Azure Site Recovery for storage

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Geo-redundant storage (GRS)

Question 15

Which Azure service provides a managed platform for deploying and running microservices as containers without managing the Kubernetes control plane?

Accepted Answer

Azure Container Apps. Azure Container Apps is a fully managed serverless platform for deploying and running microservices as containers without requiring any management of the underlying Kubernetes control plane. It abstracts away Kubernetes orchestration, providing built-in autoscaling, ingress, and secrets management, making it ideal for event-driven or containerized microservices where operational overhead must be minimized.

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Azure Kubernetes Service

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Azure Container Instances

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Azure App Service