AZ-104 Implement and Manage Virtual Networking Practice Question
This AZ-104 practice question tests your understanding of implement and manage virtual networking. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Exhibit
Effective routes on NIC vm-app01:
Address prefix Next hop type Source
10.20.0.0/16 Virtual network System
10.30.0.0/16 Virtual network gateway BGP
0.0.0.0/0 Virtual appliance User
The VM is in 10.20.0.0/16 and is connected to a VPN gateway that advertises 10.30.0.0/16.
Based on the exhibit, what next hop will the VM use when it sends traffic to 10.30.5.10?
Exhibit
Effective routes on NIC vm-app01:
Address prefix Next hop type Source
10.20.0.0/16 Virtual network System
10.30.0.0/16 Virtual network gateway BGP
0.0.0.0/0 Virtual appliance User
The VM is in 10.20.0.0/16 and is connected to a VPN gateway that advertises 10.30.0.0/16.
A
Virtual appliance at the user-defined next hop
Why wrong: The default route is less specific than the route for 10.30.0.0/16, so it does not win.
B
Virtual network gateway
The BGP route to 10.30.0.0/16 is the most specific matching route and therefore takes precedence.
C
Internet
Why wrong: There is no matching route to Internet for this destination, and a more specific route already exists.
D
Virtual network
Why wrong: VNet local applies only to destinations inside 10.20.0.0/16, not to 10.30.5.10.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Virtual network gateway
The VM's effective route table shows a route for 10.30.5.0/24 with a next hop type of 'Virtual network gateway'. Since 10.30.5.10 falls within this prefix, the VM will use the virtual network gateway as the next hop. This overrides the default virtual network (local) route because it is a more specific prefix match.
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.
✗
Virtual appliance at the user-defined next hop
Why it's wrong here
The default route is less specific than the route for 10.30.0.0/16, so it does not win.
When this WOULD be correct
If the question described a scenario where a user-defined route (UDR) is configured for the destination 10.30.5.0/24 with next hop set to 'Virtual appliance', and the VM is in a subnet associated with that route, then the correct answer would be the virtual appliance.
✓
Virtual network gateway
Why this is correct
The BGP route to 10.30.0.0/16 is the most specific matching route and therefore takes precedence.
Related concept
Read the scenario before looking for a memorised answer.
✗
Internet
Why it's wrong here
There is no matching route to Internet for this destination, and a more specific route already exists.
When this WOULD be correct
If the destination IP were a public IP address (e.g., 8.8.8.8) and no forced tunneling or specific route existed, the next hop would be 'Internet' as the default route for internet-bound traffic.
✗
Virtual network
Why it's wrong here
VNet local applies only to destinations inside 10.20.0.0/16, not to 10.30.5.10.
When this WOULD be correct
If the question asked for the next hop when a VM sends traffic to another VM in the same virtual network (e.g., 10.30.5.10 is within the VNet address space), the correct answer would be 'Virtual network' because Azure automatically routes within a VNet.
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.
✓Virtual network gatewayCorrect answer▾
Why this is correct
The BGP route to 10.30.0.0/16 is the most specific matching route and therefore takes precedence.
✗Virtual appliance at the user-defined next hopWrong answer — click to see why▾
Why this is wrong here
The exhibit shows that the route for 10.30.5.0/24 has a next hop type of 'Virtual network gateway', not 'Virtual appliance'. A user-defined route with a virtual appliance next hop would override the gateway, but no such route is present.
★ When this WOULD be the correct answer
If the question described a scenario where a user-defined route (UDR) is configured for the destination 10.30.5.0/24 with next hop set to 'Virtual appliance', and the VM is in a subnet associated with that route, then the correct answer would be the virtual appliance.
Why candidates choose this
Candidates may confuse user-defined routes (UDR) with system routes, or assume that any traffic to an external IP must go through a virtual appliance for inspection, even when no UDR is configured.
✗InternetWrong answer — click to see why▾
Why this is wrong here
The destination IP 10.30.5.10 is within the virtual network's address space, so traffic is routed internally via the virtual network gateway, not sent to the internet.
★ When this WOULD be the correct answer
If the destination IP were a public IP address (e.g., 8.8.8.8) and no forced tunneling or specific route existed, the next hop would be 'Internet' as the default route for internet-bound traffic.
Why candidates choose this
Candidates may mistakenly assume that any IP not explicitly in a route table goes to the internet, ignoring that 10.30.5.10 is a private IP within the VNet.
✗Virtual networkWrong answer — click to see why▾
Why this is wrong here
The VM's traffic to 10.30.5.10 is destined for an on-premises network connected via VPN/ExpressRoute, and the route table shows the next hop as the virtual network gateway, not the virtual network.
★ When this WOULD be the correct answer
If the question asked for the next hop when a VM sends traffic to another VM in the same virtual network (e.g., 10.30.5.10 is within the VNet address space), the correct answer would be 'Virtual network' because Azure automatically routes within a VNet.
Why candidates choose this
Candidates may confuse the destination IP being within the VNet's address space (if they misread the exhibit) or think that internal traffic always uses the virtual network as the next hop, overlooking the explicit route pointing to the gateway.
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 assume traffic to an IP within the virtual network's address space (10.0.0.0/16) will always use the 'Virtual network' next hop, but a more specific route (e.g., 10.30.5.0/24) with a different next hop type overrides it, leading to an incorrect choice of Option D.
Detailed technical explanation
How to think about this question
Azure uses longest prefix match (LPM) routing, where the most specific route (highest subnet mask) wins. The virtual network gateway next hop type is used for site-to-site VPN or ExpressRoute connections, forwarding traffic to the on-premises network. If the gateway is not connected or is misconfigured, traffic to 10.30.5.10 would be dropped, as Azure does not fall back to less specific routes.
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: Virtual network gateway — The VM's effective route table shows a route for 10.30.5.0/24 with a next hop type of 'Virtual network gateway'. Since 10.30.5.10 falls within this prefix, the VM will use the virtual network gateway as the next hop. This overrides the default virtual network (local) route because it is a more specific prefix match.
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.
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Question Discussion
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