Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
Exhibit
Subnet-Web configuration: - NAT gateway: nat-web - Route table association: rt-web Route table rt-web: - 0.0.0.0/0 -> Virtual appliance 10.1.0.4 - 10.1.0.0/16 -> Virtual network Observed issue: Internet-bound traffic still exits through the virtual appliance.
Based on the exhibit, what should the administrator change so outbound internet traffic uses the NAT gateway?
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.
A
Distractor review
Detach the subnet from the NAT gateway.
Removing the NAT gateway would reduce outbound options, not direct traffic to the desired egress path.
B
Best answer
Remove the 0.0.0.0/0 user-defined route to the virtual appliance.
A user-defined default route overrides the subnet's normal internet egress behavior and sends traffic to the appliance instead. Removing that route lets the NAT gateway handle outbound connections from the subnet.
C
Distractor review
Change the route table source address to 10.1.0.4.
Route tables do not use a source address field in that way, and this does not alter outbound path selection.
D
Distractor review
Enable a service endpoint on the subnet.
Service endpoints are for access to supported Azure services, not for choosing outbound internet routing.
Common exam trap
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Technical deep dive
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
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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?
CIDR notation defines the prefix length.
What is the correct answer to this question?
The correct answer is: Remove the 0.0.0.0/0 user-defined route to the virtual appliance. — The 0.0.0.0/0 user-defined route forces all internet-bound traffic to the virtual appliance, so the NAT gateway never becomes the active egress path. To use NAT gateway behavior, the administrator must remove or replace that default UDR. Once that route is gone, the subnet can use the NAT gateway for outbound internet traffic. Why others are wrong: Detaching the NAT gateway is the opposite of what is needed. There is no route-table source setting for this purpose, and service endpoints are unrelated to outbound internet routing. The default route is the real cause of the traffic path.
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.
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