- A
Configure a point-to-site VPN connection for the developer.
Why wrong: VPN is more complex and not necessary for a temporary IP-based access.
- B
Add a new firewall rule at the server level that allows the developer's IP address.
New rule allows the specific IP without affecting existing rules.
- C
Update the existing firewall rule to include the developer's IP address.
Why wrong: This would change the allowed range and might grant access to unintended IPs.
- D
Modify the database-level firewall rule to include the developer's IP.
Why wrong: Azure SQL Database uses server-level firewall rules; database-level rules are for contained databases but not typically used.
Question 775 of 963
DP-300 Implement a secure environment Practice Question
This DP-300 practice question tests your understanding of implement a secure environment. 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.
You have an Azure SQL Database that uses a firewall rule allowing access from a specific range of IP addresses. A developer reports that they cannot connect from a new IP address that falls outside the allowed range. You need to temporarily allow the developer's IP address for 24 hours without affecting existing rules. What should you do?
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
✓
Add a new firewall rule at the server level that allows the developer's IP address.
Option B is correct because Azure SQL Database firewall rules are configured at the server level (the logical server) to control inbound access. Adding a new server-level firewall rule for the developer's specific IP address allows temporary access without modifying or removing the existing range-based rule. This approach is the standard method for granting time-limited access to a single IP while preserving all other firewall configurations.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure a point-to-site VPN connection for the developer.
Why it's wrong here
VPN is more complex and not necessary for a temporary IP-based access.
- ✓
Add a new firewall rule at the server level that allows the developer's IP address.
Why this is correct
New rule allows the specific IP without affecting existing rules.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Update the existing firewall rule to include the developer's IP address.
Why it's wrong here
This would change the allowed range and might grant access to unintended IPs.
- ✗
Modify the database-level firewall rule to include the developer's IP.
Why it's wrong here
Azure SQL Database uses server-level firewall rules; database-level rules are for contained databases but not typically used.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse server-level firewall rules with database-level firewall rules, incorrectly assuming that database-level rules exist in Azure SQL Database (they do not), or they think updating the existing range is acceptable, missing the requirement to leave existing rules unchanged.
Detailed technical explanation
How to think about this question
Azure SQL Database firewall rules are stored in the `sys.firewall_rules` system view at the server level and are enforced at the gateway layer before any connection reaches the database engine. When adding a rule for a single IP, you specify the same value for start and end IP address, effectively creating a /32 subnet mask. For temporary access, you can script the rule creation with a scheduled deletion using Azure Automation or PowerShell to ensure the rule is removed after 24 hours, preventing security drift.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
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Implement a secure environment — study guide chapter
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FAQ
Questions learners often ask
What does this DP-300 question test?
Implement a secure environment — This question tests Implement a secure environment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Add a new firewall rule at the server level that allows the developer's IP address. — Option B is correct because Azure SQL Database firewall rules are configured at the server level (the logical server) to control inbound access. Adding a new server-level firewall rule for the developer's specific IP address allows temporary access without modifying or removing the existing range-based rule. This approach is the standard method for granting time-limited access to a single IP while preserving all other firewall configurations.
What should I do if I get this DP-300 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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