Azure Storage and Migration Options
Storage questions compare Azure Storage services, redundancy, tiers, storage accounts, blobs, files, disks, queues, tables, AzCopy, Storage Explorer, File Sync, Azure Migrate, and Data Box.
How to study for AZ-900
Treat each AZ-900 item as a cloud fit decision: identify the cloud model, Azure service category, responsibility boundary, governance need, or management tool.
Core concepts
Concept 1
Azure Storage and Migration Options questions reward Azure service selection and responsibility reasoning rather than memorizing portal labels.
Exam cue: Identify whether the item is about cloud concepts, Azure services, or management and governance.
Concept 2
The best answer identifies the cloud model, Azure resource, management boundary, security control, or governance tool that matches the scenario.
Exam cue: Separate Microsoft responsibility from customer configuration and data responsibility.
Concept 3
Eliminate answers that confuse IaaS, PaaS, and SaaS responsibilities or use a monitoring, cost, or governance tool for the wrong job.
Exam cue: Match the Azure tool to the requested outcome: deploy, secure, govern, monitor, or optimize cost.
Risk pitfalls and guardrails
Assuming cloud always removes customer responsibility.
Guardrail: Avoid answers that remove all customer responsibility, use monitoring for pricing estimates, use tags for network security, or confuse Azure Policy with RBAC.
Choosing a named Azure service without checking whether the scenario asks for compute, networking, storage, identity, governance, or monitoring.
Guardrail: Avoid answers that remove all customer responsibility, use monitoring for pricing estimates, use tags for network security, or confuse Azure Policy with RBAC.
Confusing reactive monitoring dashboards with proactive cost alerts or policy enforcement.
Guardrail: Avoid answers that remove all customer responsibility, use monitoring for pricing estimates, use tags for network security, or confuse Azure Policy with RBAC.
Memory anchors
Storage Account
A storage account provides a namespace and management boundary for Azure Storage data services.
Blob Storage
Blob Storage stores unstructured object data such as files, images, and backups.
Azure Files
Azure Files provides managed file shares accessible through standard file protocols.
Azure Disk
Azure managed disks provide block storage for Azure virtual machines.
Storage Tier
Storage tiers help balance access frequency, performance, and cost.
Redundancy
Storage redundancy replicates data to protect against hardware, datacenter, or regional failure.
AzCopy
AzCopy is a command-line tool for copying data to or from Azure Storage.
Storage Explorer
Azure Storage Explorer provides a graphical tool for working with storage data.
Azure File Sync
Azure File Sync synchronizes Windows file servers with Azure file shares.
Azure Data Box
Azure Data Box moves large datasets to Azure using a physical transfer appliance.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Which Azure Storage service is designed for unstructured object data?
Which Azure Storage service provides managed SMB and NFS file shares?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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