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EXAM SIMULATOR

AZ-900 Mock Exam — Set 5

40 questions  ·  65 minutes  ·  Pass mark 700/1000

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Sample questions from this set

A preview of 15 of the 40 questions in this set, with full explanations. Take the interactive exam above for the complete set with timer, flagging, and scoring.

Question 1Cloud Concepts

A film studio renders animation frames overnight using 500 VMs, then shuts them all down at dawn. On-premises, this would require owning 500 servers used 8 hours daily. Which cloud principle delivers the saving?

APay only for the compute hours actually consumed
BCloud hardware renders faster than physical hardware
CRendering is free at night
DVMs cannot be shut down
Explanation: Consumption pricing: 500 VMs × 8 hours costs one-third of 24/7 ownership, with zero capital outlay. Burst-compute workloads like rendering are canonical cloud economics wins.
Question 2Cloud Concepts

Which BEST defines 'serverless' computing?

ACode runs on servers fully abstracted away — you deploy functions, the platform manages all infrastructure and scales to zero
BComputing without any servers existing anywhere
COnly client-side browser code
DA VM with no operating system
Explanation: Serverless means servers exist but are invisible to you — the platform provisions, scales, and bills per execution. Azure Functions and Logic Apps are serverless; the name describes the developer experience, not physics.
Question 3Cloud Concepts

A company evaluates moving its CRM from a self-hosted application to Dynamics 365 (SaaS). Which responsibilities DISAPPEAR from their IT team's workload?

AInfrastructure, OS patching, application updates, and platform availability
BUser training and data quality
CDeciding who can access customer records
DCompliance with privacy law
Explanation: SaaS transfers the entire stack below the data/identity layer to the provider. The customer still owns user access decisions, data quality, training, and legal compliance — those never transfer.
Question 4Cloud Concepts

An SLA of 99.99% permits approximately how much downtime per year?

AAbout 52 minutes
BAbout 8.7 hours
CAbout 3.65 days
DZero downtime
Explanation: 99.99% ('four nines') allows ~52.6 minutes of downtime annually. 99.9% allows ~8.8 hours; 99% allows ~3.65 days. Each added nine cuts allowed downtime tenfold — and typically raises architecture cost significantly.
Question 5Cloud Concepts

A grocery chain wants store systems to keep operating during internet outages while syncing to Azure when connected. Devices must run cloud-managed workloads locally. Which computing pattern is this?

AEdge computing (e.g. Azure IoT Edge / Azure Stack family)
BPure public cloud
CMainframe computing
DClient-only computing
Explanation: Edge computing runs cloud-managed workloads on local hardware — surviving connectivity loss, reducing latency, and syncing to Azure when online. Azure IoT Edge and the Azure Stack portfolio serve exactly this pattern.
Question 6Azure Architecture & Services

Which pairing of concept and purpose is CORRECT?

AAvailability Zone = datacentre-failure protection within a region; Region pair = regional-disaster protection
BAvailability Zone = regional-disaster protection; Region pair = rack-failure protection
CBoth protect only against single-server failure
DNeither relates to resilience
Explanation: Zones are separated datacentres within a region (datacentre-level protection); region pairs are distance-separated regions (regional-disaster protection). Layering both delivers maximum resilience.
Question 7Azure Architecture & Services

A dev asks why their deleted storage blob was recoverable for 14 days. Which data protection feature enabled the recovery?

ASoft delete — retaining deleted data for a configurable period
BThe blob was never actually deleted
CAzure prohibits deleting blobs
DCDN caching
Explanation: Soft delete keeps deleted blobs (and containers/file shares) recoverable for a configured retention window — protection against accidental or malicious deletion before permanent purge.
Question 8Azure Architecture & Services

Which service provides desktop and application virtualisation, delivering Windows 11 multi-session to users?

AAzure Virtual Desktop
BAzure Container Instances
CAzure DNS
DAzure Queue Storage
Explanation: Azure Virtual Desktop delivers virtualised Windows desktops and apps — including Windows 11 multi-session, unique to Azure — for remote workforces on any device.
Question 9Azure Architecture & Services

A company's application requires 99.99% uptime. A single VM offers a 99.9% SLA. What architectural change reaches the higher SLA target for compute?

ADeploy multiple VM instances across Availability Zones behind a load balancer
BRestart the single VM weekly
CAdd more disk space
DRename the VM
Explanation: Multi-instance, zone-distributed deployments carry higher composite SLAs (99.99% for zone-redundant VM sets) because no single datacentre failure takes the service down. Single instances cap at lower SLA tiers.
Question 10Azure Architecture & Services

Azure Logic Apps is BEST described as:

AA low-code service for automating workflows and integrating apps, data, and services with prebuilt connectors
BA virtual machine type
CA physical network appliance
DA database engine
Explanation: Logic Apps orchestrates workflows visually — hundreds of connectors (Office 365, SQL, Salesforce, custom APIs) chained with triggers and actions, minimal code. It's the integration/automation counterpart to Functions.
Question 11Azure Architecture & Services

An online store wants product searches answered in milliseconds without hammering the SQL database on every request. Which service pattern reduces database load for frequently read data?

AIn-memory caching with Azure Cache for Redis
BA second identical SQL database
CStoring products in email
DLarger network cables
Explanation: Redis caches hot data in memory — sub-millisecond reads, dramatic database offload. Cache-aside is the standard pattern: check cache first, fall back to database, populate cache.
Question 12Azure Architecture & Services

Encryption in transit protects data:

AWhile moving across networks, typically via TLS/HTTPS
BOnly while stored on disks
COnly inside CPU registers
DIt is the same as encryption at rest
Explanation: In-transit encryption (TLS/HTTPS, VPN tunnels) protects data crossing networks from interception. At-rest encryption protects stored data. Complete protection requires both — they address different attack surfaces.
Question 13Azure Architecture & Services

A user reports that MFA prompts stopped appearing when signing in from the office but still appear from home. IT confirms this is intentional. Which feature creates this behaviour?

AConditional Access with trusted/named locations
BMFA is broken in the office
CPasswords disabled at home
DThe office has no internet
Explanation: Conditional Access policies can treat office IP ranges as trusted named locations — skipping MFA there while enforcing it elsewhere. Context-aware policy, not malfunction.
Question 14Azure Architecture & Services

Which service continuously assesses VMs, containers, databases, and storage for vulnerabilities and misconfigurations across clouds?

AMicrosoft Defender for Cloud
BAzure DNS
CAzure Load Balancer
DCost Management
Explanation: Defender for Cloud is the CSPM/CWPP platform — vulnerability assessment, misconfiguration detection, secure score, and active threat protection across Azure, hybrid, and multi-cloud workloads.
Question 15Management & Governance

A global admin left the company. Audit reveals their account had permanent Owner rights on every subscription. Which Entra capability would have limited standing privileged access?

APrivileged Identity Management (PIM) — just-in-time, time-bound, approval-based role activation
BMore permanent admin accounts
CLonger passwords
DRemoving all admins entirely
Explanation: PIM converts standing privilege into just-in-time activation — roles activate for limited windows with approval and full audit. Departed employees hold no永standing access; the attack surface of permanent admin rights disappears.