DP-900 Practice Question: Describe considerations for working with non-relational data on Azure
This DP-900 practice question tests your understanding of describe considerations for working with non-relational data on azure. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
You need to provide temporary access to a specific blob in Azure Blob Storage for a limited time. The access should be time-limited and require no authentication from the user. Which mechanism should you use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Shared access signatures (SAS)
Shared access signatures (SAS) provide time-limited, delegated access to storage resources without requiring the account key. Storage account keys provide full access and never expire. RBAC is for identity-based access, not anonymous. Access keys are long-lived secrets.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Storage account keys
Why it's wrong here
Account keys provide full access to the entire storage account and do not expire, not suitable for limited access.
✗
Anonymous public access
Why it's wrong here
Anonymous access makes the blob publicly readable without time limitation, which is not secure for temporary access.
✗
Azure RBAC roles
Why it's wrong here
RBAC requires the user to have an Azure AD identity and does not provide time-limited anonymous access.
✓
Shared access signatures (SAS)
Why this is correct
SAS tokens can be scoped to a specific blob with a defined expiration time, providing secure delegated access.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-900 question in full detail.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DP-900 NAT questions on configuration and troubleshooting.
Describe considerations for working with non-relational data on Azure — This question tests Describe considerations for working with non-relational data on Azure — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Shared access signatures (SAS) — Shared access signatures (SAS) provide time-limited, delegated access to storage resources without requiring the account key. Storage account keys provide full access and never expire. RBAC is for identity-based access, not anonymous. Access keys are long-lived secrets.
What should I do if I get this DP-900 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DP-900 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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