Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company merged with another business, and two Azure virtual networks need to be peered for shared application access. One VNet uses 10.20.0.0/16 and the other uses 10.20.128.0/17. The administrator must make the peering work with minimal operational complexity. What should be done first?
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
Create a route table on both VNets and point the overlapping prefixes to a virtual appliance.
Route tables do not resolve overlapping address spaces required for peering to succeed.
B
Best answer
Renumber one VNet to a non-overlapping address range before creating the peering.
Peering requires non-overlapping CIDR ranges, so one network must be redesigned first.
C
Distractor review
Enable gateway transit on both VNets so overlapping ranges can be routed around.
Gateway transit helps with shared gateways, but it does not allow overlapping spaces.
D
Distractor review
Create a private endpoint in each VNet for the applications that need access.
Private endpoints connect to services, not to general VNet-to-VNet peering requirements.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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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?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Renumber one VNet to a non-overlapping address range before creating the peering. — Azure virtual network peering cannot be created when the two address spaces overlap. No route table, gateway transit setting, or private endpoint work-around changes that limitation. The correct first step is to renumber one VNet so that its address space does not intersect with the other. After the ranges are unique, the peering can be created and traffic can flow according to the peering and routing configuration. Why others are wrong: Route tables and virtual appliances can influence traffic paths, but they do not change the hard peering prerequisite of unique address spaces. Gateway transit is for using a gateway across peered VNets, not for fixing conflicts. Private endpoints solve service access patterns, not VNet-to-VNet connectivity. The network ranges must be made non-overlapping before any peering-related design will work.
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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