Describe considerations for working with non-relational data on Azure →easyMultiple SelectObjective-mapped
DP-900 Practice Question: Describe considerations for working with non-relational data on Azure
Which TWO storage tiers are available in Azure Blob Storage for general-purpose v2 storage accounts? (Choose two.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Cool
Options A (Cool) and E (Hot) are correct. Azure Blob Storage offers Hot, Cool, and Archive tiers for general-purpose v2 accounts. Option B (Frozen) and Option D (Cold) are not valid tier names. Option C (Standard) is an account type, not a tier.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Cool
Why this is correct
Cool is a valid online access tier optimized for data that is infrequently accessed but still requires immediate availability. It provides lower storage costs than Hot while maintaining millisecond read and write latency, making it well-suited for backups, short-term disaster recovery, and old media files. Because Cool is an online tier, no rehydration step is needed before reading the data.
- ✗
Frozen
Why it's wrong here
Frozen is not a recognized access tier in Azure Blob Storage. The actual access tiers are Hot, Cool, and Archive; 'Frozen' is a fabricated name that might sound plausible for deeply archived data, but it does not exist in the Azure portal, SDKs, or Resource Manager API. Selecting Frozen would be invalid on the exam.
- ✗
Standard
Why it's wrong here
Standard is not a storage access tier; it refers to the performance tier of a general-purpose v2 storage account, with the other performance tier being Premium. The performance tier is chosen at account creation and applies to the entire account, not to individual blobs. Therefore, 'Standard' does not describe a blob's data temperature or access frequency in the way Hot and Cool do.
- ✗
Cold
Why it's wrong here
Cold is not recognized as a separate storage tier in the classic Azure Blob Storage access-tier model that this question is based on. In that model, the online tiers are Hot and Cool, while Archive is the offline tier for very rarely accessed data. Although 'Cold' sounds like a plausible lower-cost option, it is a distractor and is not the name of a distinct tier in that set.
- ✓
Hot
Why this is correct
Hot is the online access tier optimized for data that is accessed frequently and needs the lowest latency. It has the highest storage cost per gigabyte but charges no data access fees for reads and writes, making it ideal for active workloads, live user content, and data being processed continuously. Hot is one of the two correct options for this question.
Quick reference
Azure Blob Storage Tier Comparison
| Tier | Storage Cost | Retrieval Cost | Latency | Use Case |
|---|---|---|---|---|
| Hot | Highest | Lowest | Immediate | Active data, frequent reads |
| Cool | Lower | Higher | Immediate | Data accessed < once / month |
| Cold | Lower still | Higher | Immediate | Data accessed < once / quarter |
| Archive | Lowest | Highest + rehydration delay | Hours | Long-term compliance retention |
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