AZ-104 Implement and Manage Virtual Networking Practice Question
This AZ-104 practice question tests your understanding of implement and manage virtual networking. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 has an NSG with a custom inbound deny-all rule at priority 200. You need to allow HTTPS traffic to a VM in that subnet from any source. Which action should you take?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create an inbound allow rule for TCP 443 with priority 100.
NSG rules are evaluated in priority order, with lower numbers evaluated first. The existing deny-all rule at priority 200 blocks all inbound traffic. To allow HTTPS (TCP 443) before the deny rule is evaluated, you must create an allow rule with a priority lower than 200, such as priority 100. This ensures the allow rule is processed first, permitting the traffic.
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 inbound allow rule for TCP 443 with priority 300.
Why it's wrong here
A lower-priority allow rule would still lose to the existing deny-all rule at priority 200.
✓
Create an inbound allow rule for TCP 443 with priority 100.
Why this is correct
A smaller priority number is evaluated first, so a priority 100 allow rule will match before the deny-all rule.
Related concept
Read the scenario before looking for a memorised answer.
✗
Change the deny-all rule to outbound instead of inbound.
Why it's wrong here
That would not solve the inbound HTTPS requirement and could weaken intended traffic controls.
✗
Add a route table entry for port 443 traffic to the VM subnet.
Why it's wrong here
Route tables control next hops, not allow or deny decisions for traffic permitted by an NSG.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think higher priority numbers (like 300) are evaluated first, or they confuse NSG rule priority with route table priority, leading them to choose a higher priority number or a route table entry instead of a lower priority allow rule.
Detailed technical explanation
How to think about this question
Azure NSGs process rules in ascending priority order, stopping at the first match. A deny-all rule at priority 200 will block any traffic not explicitly allowed by a rule with a lower priority number. By placing an allow rule at priority 100, you ensure HTTPS traffic is matched and permitted before the deny rule is evaluated. This is a common pattern for implementing a 'default deny' posture with specific exceptions.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-104 question in full detail.
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 inbound allow rule for TCP 443 with priority 100. — NSG rules are evaluated in priority order, with lower numbers evaluated first. The existing deny-all rule at priority 200 blocks all inbound traffic. To allow HTTPS (TCP 443) before the deny rule is evaluated, you must create an allow rule with a priority lower than 200, such as priority 100. This ensures the allow rule is processed first, permitting the traffic.
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 →
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.
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.