Exhibit
Inbound NSG rules on AppSubnet: Priority 200 Deny-All-Inbound Any Any Any Any Deny Priority 250 Allow-HTTPS-Admin TCP 203.0.113.20/32 Any 443 Allow Priority 300 Allow-HTTPS-Internet TCP Internet Any 443 Allow Test source IP: 203.0.113.20 Observed result: TCP 443 denied
Based on the exhibit, HTTPS traffic from the admin workstation is still being blocked. What change should the administrator make?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
Distractor review
Delete the Deny-All-Inbound rule.
Removing the deny rule would open more traffic than intended and is not the least disruptive fix. The real problem is priority order, not the existence of a deny rule.
Best answer
Change Allow-HTTPS-Admin to priority 100.
NSG rules are evaluated from the lowest priority number to the highest. In the exhibit, the deny rule at priority 200 is matched before the allow rule at 250, so traffic is blocked. Moving the admin allow rule to a lower number such as 100 makes it evaluate first and permits the HTTPS test traffic.
Distractor review
Change Allow-HTTPS-Admin protocol from TCP to Any.
The traffic is already TCP 443, so changing the protocol to Any does not address the fact that the deny rule is evaluated first. Priority, not protocol, is the issue.
Distractor review
Move the allow rule to outbound traffic.
The connection attempt is inbound to the VM, so moving the rule to outbound would not allow the HTTPS session. The direction must match the traffic flow being filtered.
Common exam trap
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Technical deep dive
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
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.
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.
AZ-104 load balancer practice questions
Practise AZ-104 questions linked to AZ-104 load balancer.
AZ-104 Azure Policy practice questions
Practise AZ-104 questions linked to AZ-104 Azure Policy.
AZ-104 virtual machine practice questions
Practise AZ-104 questions linked to AZ-104 virtual machine.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A route table contains these entries: 10.0.0.0/8 with next hop Virtual appliance, and 10.1.1.0/24 with next hop Virtual network gateway. Which next hop will Azure use for traffic to 10.1.1.5?
Question 2
You are deploying a stateless web application on Azure virtual machines. The solution must automatically add and remove instances based on CPU demand and allow all instances to be managed as one logical group. Which Azure compute feature should you deploy?
Question 3
You are deploying a Windows Server VM for an internal app. The VM must support Secure Boot and vTPM later, its OS disk must survive host moves, and the team wants the lowest-cost managed disk tier that still behaves like a normal writable OS disk. Which two choices should you make? Select two.
Question 4
You need to deploy several identical virtual machines and ensure that the failure of a single Azure host does not affect all of them. Which feature should you use?
Question 5
You need to connect VNet-Hub and VNet-Spoke so that resources in both virtual networks can communicate privately over the Microsoft backbone. Both virtual networks are in the same region. What should you configure?
Question 6
You need to create a storage account that provides the lowest-cost redundant storage for non-critical data and only needs protection against local disk or server failure within a single datacenter. Which redundancy option should you choose?
FAQ
Questions learners often ask
What does this AZ-104 question test?
Standard ACLs match source addresses.
What is the correct answer to this question?
The correct answer is: Change Allow-HTTPS-Admin to priority 100. — The deny rule has a higher evaluation precedence because it uses a lower priority number than the allow rule. Since NSGs process rules from lowest number to highest, the packet matches Deny-All-Inbound at 200 before it reaches Allow-HTTPS-Admin at 250. Changing the allow rule to a smaller priority number, such as 100, makes it win first and permits only the intended admin source. Why others are wrong: Deleting the deny rule weakens security more than needed, changing protocol does not alter priority, and outbound rules do not control inbound access. The exhibit clearly shows a priority-order problem, so the fix must preserve the deny rule while ensuring the specific allow rule is evaluated earlier.
What should I do if I get this AZ-104 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
Sign in to join the discussion.