AZ-900 - Microsoft Azure Fundamentals Microsoft Azure Assessment 1 — Questions and Answers
Question 1: Which Azure concept refers to physically separate datacenters within a single Azure region, each with independent power, cooling, and networking?
- Azure Regions
- Azure Availability Zones (Correct answer)
- Azure Paired Regions
- Azure Edge Zones
Correct answer: Azure Availability Zones
Availability Zones are unique physical locations within an Azure region. Each zone is made up of one or more datacenters equipped with independent infrastructure, protecting applications and data from datacenter-level failures.
Question 2: What is the primary role of Azure Active Directory (Azure AD) in the Microsoft Azure ecosystem?
- Managing virtual machine disk storage
- Providing cloud-based identity and access management (Correct answer)
- Monitoring network traffic between resources
- Hosting containerized applications at scale
Correct answer: Providing cloud-based identity and access management
Azure Active Directory is Microsoft's cloud-based identity and access management service. It enables employees to sign in and access resources, and allows administrators to control access to applications and data using policies and multi-factor authentication.
Question 3: Which Azure storage service is best suited for storing large amounts of unstructured data such as images, videos, and log files?
- Azure Table Storage
- Azure Queue Storage
- Azure Blob Storage (Correct answer)
- Azure File Storage
Correct answer: Azure Blob Storage
Azure Blob Storage is optimized for storing massive amounts of unstructured data (binary large objects). It supports images, documents, video, audio, backup files, and log data, and can be accessed via HTTP/HTTPS from anywhere in the world.
Question 4: Which financial model shift is a key benefit of moving from on-premises infrastructure to cloud services like Azure?
- Increasing capital expenditure (CapEx) and reducing operational expenditure (OpEx)
- Eliminating all infrastructure spending entirely
- Shifting from capital expenditure (CapEx) to operational expenditure (OpEx) (Correct answer)
- Converting variable costs into fixed long-term hardware contracts
Correct answer: Shifting from capital expenditure (CapEx) to operational expenditure (OpEx)
Cloud computing shifts spending from CapEx (large upfront hardware purchases) to OpEx (pay-as-you-go consumption). This improves cash flow, reduces waste, and lets organizations scale costs with actual usage rather than predicted demand.
Question 5: Which Azure service allows you to create a logically isolated private network in the cloud where you can control IP address ranges, subnets, and routing?
- Azure ExpressRoute
- Azure Virtual Network (VNet) (Correct answer)
- Azure Content Delivery Network (CDN)
- Azure Load Balancer
Correct answer: Azure Virtual Network (VNet)
Azure Virtual Network (VNet) is the fundamental building block for private networking in Azure. It enables Azure resources to securely communicate with each other, the internet, and on-premises networks, with full control over IP addressing, subnets, and route tables.
Question 6: What does the Azure Service Level Agreement (SLA) primarily guarantee to customers?
- That Azure services will never experience any downtime
- Minimum uptime and connectivity percentages for Azure services (Correct answer)
- Free support credits for any performance issue
- Guaranteed response times from Azure support engineers
Correct answer: Minimum uptime and connectivity percentages for Azure services
Azure SLAs define the minimum uptime and connectivity commitments Microsoft makes for each service, typically expressed as a percentage (e.g., 99.9% or 99.99%). If Microsoft fails to meet these targets, customers may be eligible for service credits.
AZ-900 - Microsoft Azure Fundamentals Microsoft Azure Assessment 1
Which Azure concept refers to physically separate datacenters within a single Azure region, each with independent power, cooling, and networking?