- A
Create an NSG rule allowing TCP 3389 from the Subnet-Mgmt address range and rely on the default deny afterward.
This is the correct way to permit RDP from a specific source while denying other sources.
- B
Create a route table that sends RDP traffic to the management subnet.
Why wrong: Route tables do not implement port-based access control.
- C
Deploy a private endpoint for each application server.
Why wrong: Private endpoints are for Azure PaaS services, not exposing VM RDP selectively.
- D
Enable service endpoints on the application subnet.
Why wrong: Service endpoints are unrelated to RDP access control.
Question 362 of 1,170
AZ-104 Implement and Manage Virtual Networking Practice Question
This AZ-104 practice question tests your understanding of implement and manage virtual networking. 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.
A subnet contains several application servers. You need to allow inbound TCP 3389 only from a management subnet named Subnet-Mgmt and deny RDP from all other sources. 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
✓
Create an NSG rule allowing TCP 3389 from the Subnet-Mgmt address range and rely on the default deny afterward.
Option A is correct because Network Security Groups (NSGs) in Azure filter traffic based on rules that are evaluated in priority order. By creating an inbound rule that allows TCP 3389 (RDP) from the Subnet-Mgmt address range, and relying on the default implicit deny rule that blocks all other inbound traffic, you effectively restrict RDP access to only the management subnet. No additional configuration is needed to deny traffic from other sources, as the default deny handles that automatically.
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.
- ✓
Create an NSG rule allowing TCP 3389 from the Subnet-Mgmt address range and rely on the default deny afterward.
Why this is correct
This is the correct way to permit RDP from a specific source while denying other sources.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a route table that sends RDP traffic to the management subnet.
Why it's wrong here
Route tables do not implement port-based access control.
When this WOULD be correct
If the question asked to force RDP traffic from the application subnet to go through a network virtual appliance (NVA) in the management subnet for inspection, then a route table with a route for 3389 traffic to the NVA would be correct.
- ✗
Deploy a private endpoint for each application server.
When this WOULD be correct
When you need to securely connect to an Azure PaaS service (e.g., Azure SQL Database, Storage Account) from a virtual network, ensuring traffic never traverses the public internet. The question would specify a PaaS service and require private connectivity.
- ✗
Enable service endpoints on the application subnet.
Why it's wrong here
Service endpoints are unrelated to RDP access control.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The AZ-104 exam frequently reuses these exact scenarios with slightly different constraints.
✓Create an NSG rule allowing TCP 3389 from the Subnet-Mgmt address range and rely on the default deny afterward.Correct answer▾
Why this is correct
This is the correct way to permit RDP from a specific source while denying other sources.
✗Create a route table that sends RDP traffic to the management subnet.Wrong answer — click to see why▾
Why this is wrong here
Route tables control traffic routing between subnets, not security filtering. They cannot deny or allow specific ports like RDP (3389); they only determine the next hop for traffic.
★ When this WOULD be the correct answer
If the question asked to force RDP traffic from the application subnet to go through a network virtual appliance (NVA) in the management subnet for inspection, then a route table with a route for 3389 traffic to the NVA would be correct.
Why candidates choose this
Candidates may confuse routing with security filtering, thinking that directing RDP traffic to the management subnet implicitly restricts access, or they may overestimate the capabilities of route tables.
✗Deploy a private endpoint for each application server.Wrong answer — click to see why▾
Why this is wrong here
Private endpoints are used to securely access Azure PaaS services over a private IP address, not to restrict inbound RDP traffic to VMs. They do not filter network traffic like NSGs and cannot deny RDP from specific subnets.
★ When this WOULD be the correct answer
When you need to securely connect to an Azure PaaS service (e.g., Azure SQL Database, Storage Account) from a virtual network, ensuring traffic never traverses the public internet. The question would specify a PaaS service and require private connectivity.
Why candidates choose this
Candidates may confuse private endpoints with network security controls, thinking they can restrict access to VMs, or they may overcomplicate the solution by introducing a feature designed for PaaS services instead of using a simple NSG rule.
✗Enable service endpoints on the application subnet.Wrong answer — click to see why▾
Why this is wrong here
Service endpoints secure Azure service traffic to a virtual network, not inbound RDP access. They do not filter or deny traffic like NSG rules, so they cannot restrict RDP from specific subnets.
★ When this WOULD be the correct answer
When you need to restrict access from a subnet to an Azure PaaS service (e.g., Azure Storage or SQL Database) to only allow traffic from that subnet, you would enable a service endpoint and create a firewall rule on the service.
Why candidates choose this
Candidates may confuse service endpoints with network security controls, thinking they can restrict inbound traffic to VMs, or they may misapply the concept of securing resources to a virtual network.
Analysis generated from the official AZ-104blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think they need to explicitly create a deny rule for all other sources, not realizing that NSGs have a built-in default deny rule that automatically blocks traffic not matching any allow rule.
Detailed technical explanation
How to think about this question
NSG rules are stateful, meaning that if you allow inbound traffic, the return traffic is automatically allowed regardless of outbound rules. The default inbound rule 'DenyAllInBound' has a priority of 65000 and applies after all custom rules, so a custom rule with a higher priority (lower number) allowing RDP from Subnet-Mgmt will be evaluated first, and all other traffic will hit the default deny. In a real-world scenario, you might also need to consider using Azure Bastion as a more secure alternative to RDP, but the question specifically asks about NSG-based filtering.
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.
Visual reference
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Implement and Manage Virtual Networking — study guide chapter
Learn the concepts, then practise the questions
- →
Implement and Manage Virtual Networking practice questions
Targeted practice on this topic area only
- →
All AZ-104 questions
1,170 questions across all exam domains
- →
AZ-104 study guide
Full concept coverage aligned to exam objectives
- →
AZ-104 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related AZ-104 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Manage Azure Identities and Governance practice questions
Practise AZ-104 questions linked to Manage Azure Identities and Governance.
Implement and Manage Storage practice questions
Practise AZ-104 questions linked to Implement and Manage Storage.
Deploy and Manage Azure Compute practice questions
Practise AZ-104 questions linked to Deploy and Manage Azure Compute.
Implement and Manage Virtual Networking practice questions
Practise AZ-104 questions linked to Implement and Manage Virtual Networking.
Monitor and Maintain Azure Resources practice questions
Practise AZ-104 questions linked to Monitor and Maintain Azure Resources.
AZ-104 Azure RBAC practice questions
Practise AZ-104 questions linked to AZ-104 Azure RBAC.
AZ-104 storage account practice questions
Practise AZ-104 questions linked to AZ-104 storage account.
AZ-104 virtual network practice questions
Practise AZ-104 questions linked to AZ-104 virtual network.
AZ-104 NSG practice questions
Practise AZ-104 questions linked to AZ-104 NSG.
AZ-104 Azure Monitor practice questions
Practise AZ-104 questions linked to AZ-104 Azure Monitor.
AZ-104 backup practice questions
Practise AZ-104 questions linked to AZ-104 backup.
AZ-104 managed identity practice questions
Practise AZ-104 questions linked to AZ-104 managed identity.
Practice this exam
Start a free AZ-104 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this AZ-104 question test?
Implement and Manage Virtual Networking — This question tests Implement and Manage Virtual Networking — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create an NSG rule allowing TCP 3389 from the Subnet-Mgmt address range and rely on the default deny afterward. — Option A is correct because Network Security Groups (NSGs) in Azure filter traffic based on rules that are evaluated in priority order. By creating an inbound rule that allows TCP 3389 (RDP) from the Subnet-Mgmt address range, and relying on the default implicit deny rule that blocks all other inbound traffic, you effectively restrict RDP access to only the management subnet. No additional configuration is needed to deny traffic from other sources, as the default deny handles that automatically.
What should I do if I get this AZ-104 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
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More AZ-104 practice questions
- A storage automation service principal must upload, read, and delete blob data in one container by using Microsoft Entra…
- A subscription admin wants to investigate who changed a resource and also review the platform-generated events for that…
- Based on the exhibit, which Azure feature should the administrator use to track this kind of platform-wide service issue…
- An administrator wants a script running on an Azure VM to create a resource in Azure without storing any passwords or cl…
- A PowerShell script runs on an Azure VM every night and uses Azure CLI commands to create tags and VM resources in anoth…
- A storage account becomes unavailable because Azure has a regional platform issue. The operations team wants a notificat…
Last reviewed: Jun 11, 2026
This AZ-104 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 AZ-104 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.