DP-900 Practice Question: Identify considerations for relational data on Azure
This DP-900 practice question tests your understanding of identify considerations for relational data on azure. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Which TWO of the following are benefits of using Azure SQL Database over SQL Server on Azure Virtual Machines?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Built-in high availability with automatic failover
Options B and D are correct. Azure SQL Database automates patching and provides built-in high availability. Option A is incorrect because Azure SQL Database does not provide full control over the OS. Option C is incorrect because you cannot install custom software. Option E is incorrect because you cannot configure the exact number of vCores in some tiers, but that is not a benefit over VMs.
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.
✓
Built-in high availability with automatic failover
Why this is correct
Azure SQL Database provides built-in high availability without manual configuration.
Related concept
Static NAT maps one inside address to one outside address.
✓
Automated patching and updates
Why this is correct
Azure SQL Database automatically applies patches and updates.
Related concept
Static NAT maps one inside address to one outside address.
✗
Lower cost because you can choose any number of vCores
Why it's wrong here
Cost depends on tier and DTU/vCore model; VMs can also be sized flexibly.
✗
Ability to install custom software on the database server
Azure SQL Database is PaaS, so you do not have OS control.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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.
Identify considerations for relational data on Azure — This question tests Identify considerations for 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: Built-in high availability with automatic failover — Options B and D are correct. Azure SQL Database automates patching and provides built-in high availability. Option A is incorrect because Azure SQL Database does not provide full control over the OS. Option C is incorrect because you cannot install custom software. Option E is incorrect because you cannot configure the exact number of vCores in some tiers, but that is not a benefit over VMs.
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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