AZ-305 Design infrastructure solutions Practice Question
This AZ-305 practice question tests your understanding of design infrastructure solutions. 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 company has deployed several Azure VMs that do not have public IP addresses. Administrators need to securely connect to these VMs using RDP and SSH from the internet over a browser without deploying a jump box or managing VPN connections. The solution must use Microsoft Entra ID authentication for single sign-on. Which Azure service should they use?
Why wrong: A jump box VM would require a public IP and additional security management, and it does not natively integrate with Microsoft Entra ID for single sign-on.
B
Azure Bastion
Azure Bastion offers secure, browser-based RDP/SSH connections to VMs without public IPs, supports Microsoft Entra ID authentication, and is fully managed.
C
Azure VPN Gateway
Why wrong: VPN Gateway provides site-to-site or point-to-site connectivity but requires client software and does not offer browser-based direct VM access.
D
Azure ExpressRoute
Why wrong: ExpressRoute is a dedicated private connection between on-premises and Azure, not designed for remote individual access to VMs.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Bastion
Azure Bastion provides secure, seamless RDP and SSH connectivity to Azure VMs directly from the Azure portal over TLS, without requiring public IP addresses, jump boxes, or VPN connections. It supports Microsoft Entra ID authentication for single sign-on, meeting the requirement for browser-based access with no additional management overhead.
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.
✗
Azure Jump Box VM
Why it's wrong here
A jump box VM would require a public IP and additional security management, and it does not natively integrate with Microsoft Entra ID for single sign-on.
✓
Azure Bastion
Why this is correct
Azure Bastion offers secure, browser-based RDP/SSH connections to VMs without public IPs, supports Microsoft Entra ID authentication, and is fully managed.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure VPN Gateway
Why it's wrong here
VPNGateway provides site-to-site or point-to-site connectivity but requires client software and does not offer browser-based direct VM access.
✗
Azure ExpressRoute
Why it's wrong here
ExpressRoute is a dedicated private connection between on-premises and Azure, not designed for remote individual access to VMs.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure Bastion with a jump box VM or assume VPNGateway is required for secure remote access, overlooking that Bastion provides browser-based RDP/SSH without any public IP or VPN infrastructure.
Detailed technical explanation
How to think about this question
Azure Bastion uses a hardened RDP/SSH proxy that is deployed in the Azure virtual network, leveraging TLS 1.2+ to encapsulate the remote desktop or SSH protocol. The service authenticates users via Microsoft Entra ID and Azure RBAC, then forwards the session to the target VM over the private network, ensuring the VM never has a public IP and remains isolated from the internet. In real-world scenarios, this eliminates the need for NSG rules allowing RDP/SSH from the internet, reducing the attack surface significantly.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-305 question in full detail.
Design infrastructure solutions — This question tests Design infrastructure solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Azure Bastion — Azure Bastion provides secure, seamless RDP and SSH connectivity to Azure VMs directly from the Azure portal over TLS, without requiring public IP addresses, jump boxes, or VPN connections. It supports Microsoft Entra ID authentication for single sign-on, meeting the requirement for browser-based access with no additional management overhead.
What should I do if I get this AZ-305 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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