Quick Note — Recommend a Backup and Recovery Solution for Unstructured Data
AZ-305 › Unit 3 › Design solutions for backup and disaster recovery › Recommend a backup and recovery solution for unstructured data
Quick Note — Recommend a Backup and Recovery Solution for Unstructured Data
Unstructured data — the documents, images, logs, scanned PDFs, video files, telemetry blobs, and SMB file shares your organization accumulates — is the bulk of what most enterprises store in Azure. It is also where the painful, headline-making losses happen: a misconfigured pipeline overwrites a year of analytics blobs, an angry contractor empties a file share before they leave, ransomware encrypts every container in a storage account at on a Sunday morning.…
Retrieval target
- Recommend a Backup and Recovery Solution for Unstructured Data
- Closed-book recall
- 5 minutes
- Open the full lesson after a miss
Decision anchors
| Prompt | Compact answer |
|---|---|
Operational backup for Blob (local PITR) | A storage-account-local protection that gives point-in-time restore for block blobs without an external vault. Data is kept inside the same storage account; configurable retention up to 360 days. Restores container state to any second in the window. Prerequisites: Soft-delete, Change feed, and Blob versioning must all be enabled. Block blobs in Hot/Cool only. |
Vaulted backup for Blob | Backup-Vault-managed copies of blob data, stored separately from the storage account — survives account deletion. Configurable schedule and retention (up to years). Best for air-gapped, tenant-isolated copies. Higher cost than operational backup (separate storage charges). Use when business requires the backup to survive even a wholesale account delete or compromise. |
Azure File Share snapshots | Point-in-time, read-only snapshots of an entire SMB share stored within the same storage account. Up to 200 snapshots / share. Manual or scheduled. Differential under the covers (only changed blocks billed). Self-service recovery via the portal or REST. Free / cheap and instant — first line of defense before reaching for vault-level backup. |
Azure File Share backup (via Recovery Services Vault) | Adds a vault layer over share snapshots — Azure Backup orchestrates the snapshots on a schedule + retains them per policy (daily / weekly / monthly / yearly) inside an RSV. Manages soft-delete (default 14 days) so accidentally deleted snapshots are recoverable. Use when you need policy-driven retention and cross-account protection that share snapshots alone don't provide. |
Read the answers once, then cover the right-hand column and reconstruct each one from the prompt. A useful answer names the requirement, the recommended control or service boundary, and the nearest alternative it rejects. If you can only recognize the answer after seeing it, retrieval is not yet secure.
Ninety-second explanation
Without notes, explain:
- What requirement signals this learning objective rather than a neighbouring one?
- Which two solution families are most likely to be compared?
- Which hard constraint eliminates the strongest distractor?
- What identity, network, data, or failure boundary must appear in the design?
- Which operational test would prove the recommendation works?
Then compare your explanation with the full lesson. Record the missing decision rule—not merely the missed product name—in your error log.
When to open the full lesson
Open the curriculum-linked lesson when you cannot explain a comparison, when a scenario depends on a numeric limit or SKU feature, or when the service is on a retirement path. Use current Microsoft Learn documentation for availability, limits, pricing, naming, and migration milestones; the quick note is intentionally compact.
Source and freshness
Derived from the linked AZ-305 lesson and retrieval deck, grounded in both attached course sources. Reviewed 2026-08-02. Current Microsoft documentation controls changing product contracts.