- A
A site-to-site connection using Azure VPN Gateway.
A site-to-site VPN with Azure VPN Gateway is designed for permanent encrypted connectivity between an on-premises network and an Azure VNet. The branch firewall can establish an IPsec/IKE tunnel to the gateway using its public IP, which matches the scenario. This approach provides private connectivity across the internet without exposing the workload directly to public endpoints. It is the standard choice for hybrid network connectivity when ExpressRoute is not required.
- B
VNet peering between the branch office and the Azure VNet.
Why wrong: VNet peering connects two Azure virtual networks. It cannot directly connect an on-premises office network.
- C
Azure Bastion in the target VNet.
Why wrong: Bastion provides secure browser-based RDP or SSH access to VMs, not permanent network connectivity for the whole office.
- D
A private endpoint for the Azure VNet.
Why wrong: Private endpoints are for individual PaaS resources and do not create site-to-site connectivity for an entire branch network.
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 branch office uses an on-premises firewall that supports IPsec/IKE and has a stable public IP. The office needs always-on private connectivity to an Azure VNet over the internet. Which Azure component should the administrator deploy?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"always"Why it matters: Absolute qualifier. An answer using 'always' is only correct if there are genuinely no exceptions — absolute statements are often wrong in networking.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
A site-to-site connection using Azure VPN Gateway.
A site-to-site VPN connection using Azure VPN Gateway is the correct choice because it provides always-on, encrypted connectivity over the internet between an on-premises network with a stable public IP and an Azure VNet. Azure VPN Gateway supports IPsec/IKE protocols, which are compatible with the branch office's firewall, enabling a secure tunnel that meets the requirement for private connectivity.
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.
- ✓
A site-to-site connection using Azure VPN Gateway.
Why this is correct
A site-to-site VPN with Azure VPN Gateway is designed for permanent encrypted connectivity between an on-premises network and an Azure VNet. The branch firewall can establish an IPsec/IKE tunnel to the gateway using its public IP, which matches the scenario. This approach provides private connectivity across the internet without exposing the workload directly to public endpoints. It is the standard choice for hybrid network connectivity when ExpressRoute is not required.
Clue confirmation
The clue word "always" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
VNet peering between the branch office and the Azure VNet.
Why it's wrong here
VNet peering connects two Azure virtual networks. It cannot directly connect an on-premises office network.
- ✗
Azure Bastion in the target VNet.
Why it's wrong here
Bastion provides secure browser-based RDP or SSH access to VMs, not permanent network connectivity for the whole office.
- ✗
A private endpoint for the Azure VNet.
Why it's wrong here
Private endpoints are for individual PaaS resources and do not create site-to-site connectivity for an entire branch network.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse VNet peering (which only works between Azure VNets) with site-to-site VPN connectivity, or they mistakenly think Azure Bastion or private endpoints can provide network-level connectivity to on-premises networks.
Detailed technical explanation
How to think about this question
Azure VPN Gateway uses IKEv1 or IKEv2 with IPsec to establish a site-to-site tunnel, requiring the on-premises device to have a public IP and support for these protocols. The gateway is deployed in a dedicated subnet (GatewaySubnet) and can be configured with active-active mode for high availability, or with BGP for dynamic routing. In real-world scenarios, this is commonly used for hybrid cloud architectures where on-premises resources need secure, low-latency access to Azure workloads without traversing the public internet.
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
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this AZ-104 question test?
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: A site-to-site connection using Azure VPN Gateway. — A site-to-site VPN connection using Azure VPN Gateway is the correct choice because it provides always-on, encrypted connectivity over the internet between an on-premises network with a stable public IP and an Azure VNet. Azure VPN Gateway supports IPsec/IKE protocols, which are compatible with the branch office's firewall, enabling a secure tunnel that meets the requirement for private connectivity.
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.
Are there clue words in this question I should notice?
Yes — watch for: "always". Absolute qualifier. An answer using 'always' is only correct if there are genuinely no exceptions — absolute statements are often wrong in networking.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 11, 2026
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