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 news website normally serves 10,000 daily visitors, but a breaking story brings 2 million in one hour, then traffic returns to normal. In the cloud, which capability handles the spike, and what happens to cost afterwards?
A ✓Elastic scaling handles the spike; cost returns to baseline when resources scale back in
BElastic scaling handles the spike; the higher cost becomes permanent
CThe site must pre-purchase capacity for 2 million users year-round
DCloud providers block traffic spikes automatically
Explanation: Elasticity scales out for the spike and scales back in afterwards — cost follows usage in both directions. This is the fundamental advantage over owning peak-capacity hardware that idles the rest of the year.
Question 2Cloud Concepts
Which term describes the ability to deploy applications closer to users in multiple geographies to reduce latency?
A ✓Global reach through worldwide regions
BVertical scaling
CFault tolerance
DServerless computing
Explanation: Azure's global footprint of 60+ regions lets you deploy near users on every continent, reducing latency. Vertical scaling adds power to one machine; fault tolerance survives failures — neither addresses geographic proximity.
Question 3Cloud Concepts
A bank asks: 'If we move to PaaS and our application leaks customer data due to a coding flaw, is Microsoft liable?' What is the correct shared-responsibility answer?
A ✓No — application code and data protection remain the customer's responsibility in every service model
BYes — Microsoft assumes all liability in PaaS
CLiability transfers to Microsoft after 12 months
DNeither party is responsible for data
Explanation: Application code, data, identities, and access management stay with the customer in IaaS, PaaS, AND SaaS. Microsoft secures the platform; the customer secures what they build and store on it.
Question 4Cloud Concepts
What is 'vertical scaling' (scaling up)?
A ✓Adding more power (CPU/RAM) to an existing machine
BAdding more machine instances to share load
CMoving workloads to a different region
DReducing the number of applications on a server
Explanation: Vertical scaling (up) increases the resources of a single instance — bigger VM size. Horizontal scaling (out) adds more instances. Cloud favours horizontal scaling because it has no single-machine ceiling and improves resilience.
Question 5Cloud Concepts
A legacy application cannot run multiple instances — it must run on exactly one server. Demand has outgrown the current VM. Which scaling approach is the ONLY option?
A ✓Vertical scaling — resizing to a larger VM
BHorizontal scaling with a load balancer
CDeploying to multiple regions
DConverting to serverless functions
Explanation: Single-instance applications can only scale vertically — a bigger VM. Horizontal scaling requires the app to support multiple concurrent instances, which this legacy app cannot. This is a common real-world constraint driving VM resizing.
Question 6Cloud Concepts
Which is an example of a hybrid cloud scenario?
A ✓An on-premises Active Directory synchronising identities with Microsoft Entra ID for cloud apps
BRunning everything in Azure public cloud
CTwo departments sharing one Azure subscription
DUsing both Azure Blob and Azure Files storage
Explanation: Hybrid = on-premises infrastructure working WITH public cloud. Directory synchronisation between on-prem AD and Entra ID is a textbook hybrid identity scenario. Using multiple Azure services is still purely public cloud.
Question 7Cloud Concepts
A CIO must justify cloud migration to the board. Current annual datacentre costs include $2M hardware refresh, $400K power/cooling, and $600K facilities staff. Which tool produces a formal comparison against Azure costs?
A ✓Total Cost of Ownership (TCO) Calculator
BAzure Advisor
CAzure Service Health
DMicrosoft Sentinel
Explanation: The TCO Calculator models complete on-premises costs — hardware, power, cooling, labour, facilities — against equivalent Azure spending, producing board-ready comparison reports. The Pricing Calculator only estimates Azure-side costs.
Question 8Cloud Concepts
Why can a composite application using three Azure services each with 99.9% SLA have an effective SLA LOWER than 99.9%?
A ✓Combined availability multiplies: 99.9% × 99.9% × 99.9% ≈ 99.7%
BAzure penalises multi-service applications
CSLAs only apply to single services
DIt cannot — the SLA stays 99.9%
Explanation: When services depend on each other, availabilities multiply: 0.999³ ≈ 0.997 (99.7%). Each additional dependency lowers the composite SLA — an important architectural consideration when making uptime promises.
Question 9Cloud Concepts
A developer wants to test a new idea: spin up resources for 3 hours, run experiments, delete everything. On-premises this would need a purchase request taking weeks. Which TWO cloud benefits does this illustrate MOST directly?
A ✓Agility and consumption-based pricing
BHigh availability and disaster recovery
CGeo-distribution and compliance
DPredictability and governance
Explanation: Minutes-not-weeks provisioning is agility; paying only for 3 hours is consumption-based pricing. Together they make experimentation cheap and fast — a major driver of cloud innovation velocity.
Question 10Azure Architecture & Services
What is a sovereign cloud in Azure terms?
A ✓Isolated Azure instances for specific jurisdictions, such as Azure Government (US) or Azure China
BA private cloud any company can build
CThe most expensive Azure pricing tier
DA region with only one datacentre
Explanation: Sovereign clouds are physically and logically isolated Azure instances meeting specific national requirements — Azure Government for US agencies, Azure China operated by 21Vianet. They have separate identities, portals, and compliance scopes.
Question 11Azure Architecture & Services
An architect deploys three VMs behind a load balancer, each in a different Availability Zone within one region. Which failure types does this design survive, and which does it NOT?
A ✓Survives server, rack, and datacentre failures — but not a full regional outage
BSurvives all failures including regional outages
CSurvives only single-server failures
DSurvives nothing without a second region
Explanation: Zones are separate datacentres with independent power/cooling/network — surviving datacentre-level failure. But all zones are within ONE region; a regional disaster requires multi-region architecture (region pairs) to survive.
Question 12Azure Architecture & Services
Which compute option bills ONLY while code executes, scaling to zero when idle?
A ✓Azure Functions (consumption plan)
BAzure Virtual Machines
CAKS with a fixed node pool
DAzure Virtual Desktop
Explanation: Functions on the consumption plan is serverless: bills per execution (time and memory), scales automatically, and costs nothing when idle. VMs and fixed AKS nodes bill while running regardless of activity.
Question 13Azure Architecture & Services
A retailer's checkout system sends order messages to a warehouse system that is sometimes offline for maintenance. Orders must NEVER be lost while the warehouse system is down. Which pattern/service prevents loss?
A ✓Message queuing (e.g. Azure Queue Storage or Service Bus) to decouple the systems
BDirect synchronous API calls between the systems
CStoring orders in browser cookies
DA larger VM for the checkout
Explanation: Queues decouple producers from consumers: checkout writes messages to the queue; the warehouse processes them when available. Messages persist until consumed — nothing is lost during downtime. Synchronous calls fail when the receiver is offline.
Question 14Azure Architecture & Services
Which service should host a static website (HTML, CSS, JavaScript) at the LOWEST cost?
A ✓Azure Blob Storage static website hosting (or Azure Static Web Apps)
BA Windows Server VM running IIS
CAzure Kubernetes Service
DAzure SQL Database
Explanation: Static content needs no compute — Blob static hosting or Static Web Apps serve files for cents per month. Running a VM or Kubernetes cluster for static files pays for unnecessary compute continuously.
Question 15Azure Architecture & Services
During a ransomware incident on-premises, a company restores clean data from Azure because backups were configured with immutability. Which service category made this recovery possible?
A ✓Azure Backup with immutable/soft-delete protection
BAzure CDN
CAzure Load Balancer
DAzure DNS
Explanation: Azure Backup provides off-site, policy-driven backups; immutability and soft delete prevent attackers (or mistakes) from destroying recovery points. Off-site immutable backups are the core ransomware recovery control.