The answer is to enable the “Allow Azure services and resources to access this server” firewall setting and configure firewall rules for specific on-premises IP ranges. This combination works because the first setting permits traffic from all Azure datacenters, allowing services like Azure App Service or Azure Functions to connect via the public endpoint, while the second restricts inbound traffic to only your defined on-premises IP addresses, blocking all other external sources. On the DP-300 exam, this tests your understanding of Azure SQL Database network security, often appearing in scenarios where you must balance cloud service integration with strict IP-based access control. A common trap is assuming “Allow Azure services” opens the database to the internet—it does not; it only allows traffic from Azure’s internal network. Memory tip: think “Azure inside, on-premises outside”—the firewall lets Azure services in globally, then locks down the perimeter with specific IP rules.
DP-300 Implement a secure environment Practice Question
This DP-300 practice question tests your understanding of implement a secure environment. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Your organization uses Azure SQL Database and wants to restrict access to only specific Azure services and on-premises IP addresses. The database has a public endpoint. Which two security features should you configure?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable 'Allow Azure services and resources to access this server' in the firewall settings.
Option A is correct because enabling 'Allow Azure services and resources to access this server' in the Azure SQL Database firewall settings permits traffic from all Azure datacenters, effectively allowing other Azure services (e.g., Azure App Service, Azure Functions) to connect to the database. Option C is correct because configuring firewall rules to allow specific on-premises IP ranges restricts inbound traffic to only those IP addresses, meeting the requirement to allow on-premises access while blocking others.
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.
✓
Enable 'Allow Azure services and resources to access this server' in the firewall settings.
Why this is correct
This allows other Azure services to connect.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable Always Encrypted with secure enclaves.
Why it's wrong here
This is for encryption, not access control.
✓
Set firewall rules to allow specific on-premises IP ranges.
Read the scenario before looking for a memorised answer.
✗
Create a virtual network service endpoint for SQL.
Why it's wrong here
Service endpoints require a virtual network integration, not just a firewall rule.
✗
Configure a private endpoint for the database.
Why it's wrong here
Private endpoint removes the public endpoint, which may not be desired.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse network-level access controls (firewall rules and service endpoints) with encryption features (Always Encrypted) or private connectivity (private endpoints), mistakenly thinking they restrict access when they actually address different security aspects like data protection or network isolation.
Detailed technical explanation
How to think about this question
Azure SQL Database firewall rules are evaluated at the network layer using a list of allowed IP ranges (IPv4 CIDR notation). The 'Allow Azure services' checkbox adds a special rule that permits all Azure datacenter IP ranges, which are maintained by Microsoft and updated automatically. For on-premises access, you must add explicit firewall rules with your public IP ranges; note that if the on-premises IP changes, the rule must be updated. Private endpoints use Azure Private Link to assign a private IP from a virtual network, removing public exposure entirely, but they require hybrid connectivity (e.g., VPN or ExpressRoute) for on-premises access, making them unsuitable for the stated requirement of allowing specific on-premises IPs directly.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-300 question in full detail.
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: Enable 'Allow Azure services and resources to access this server' in the firewall settings. — Option A is correct because enabling 'Allow Azure services and resources to access this server' in the Azure SQL Database firewall settings permits traffic from all Azure datacenters, effectively allowing other Azure services (e.g., Azure App Service, Azure Functions) to connect to the database. Option C is correct because configuring firewall rules to allow specific on-premises IP ranges restricts inbound traffic to only those IP addresses, meeting the requirement to allow on-premises access while blocking others.
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.
About these practice questions
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Variation 1. You need to ensure that only specific Azure services can access your Azure SQL Database server. You want to allow traffic from Azure services but block all other traffic. What should you configure?
easy
✓ A.Set the firewall rule 'Allow Azure Services and resources to access this server' to ON and remove all other IP rules.
B.Set the firewall rule 'Allow Azure Services and resources to access this server' to OFF and add a rule for 0.0.0.0.
C.Set firewall rules to deny all IP addresses.
D.Set the firewall rule 'Allow Azure Services and resources to access this server' to ON and add a rule for 0.0.0.0.
Why A: Setting the 'Allow Azure Services and resources to access this server' firewall rule to ON enables a special rule that permits traffic from all Azure datacenter IP ranges, while removing all other IP rules ensures no other external traffic can reach the server. This configuration meets the requirement to allow only Azure services and block all other traffic, as the Azure services rule is a blanket allow for Azure-originated connections without needing specific IP addresses.
Last reviewed: Jun 24, 2026
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This DP-300 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DP-300 exam.
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