The answer is Azure ExpressRoute, VPN Gateway with active-active configuration, and ExpressRoute Global Reach. These three options together satisfy the requirements for a high availability hybrid network with 99.99% SLA and low latency because ExpressRoute provides a dedicated, private MPLS connection bypassing the public internet, while an active-active VPN Gateway adds redundant IPsec tunnels as a failover path, and Global Reach extends ExpressRoute connectivity across regions for geo-redundancy. On the AZ-305 exam, this scenario tests your ability to combine services for resilience rather than picking a single solution; a common trap is choosing only ExpressRoute and forgetting the VPN backup, or overlooking Global Reach when multi-region latency is implied. Remember the mnemonic “EVG” — ExpressRoute, VPN, Global Reach — to recall the triad for a fault-tolerant hybrid network.
AZ-305 Design infrastructure solutions Practice Question
This AZ-305 practice question tests your understanding of design infrastructure solutions. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 is designing a hybrid network architecture that connects an on-premises data center to Azure. The requirements include high availability (99.99% SLA), low latency, and the ability to use existing MPLS connections. Which THREE Azure connectivity options should be considered?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure VPN Gateway (active-active)
Azure ExpressRoute provides dedicated private connections with high SLA and low latency; VPNGateway with active-active configuration provides redundant IPsec tunnels; and ExpressRoute with ExpressRoute Global Reach extends connectivity across regions. All can use MPLS or existing circuits.
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 VPN Gateway (active-active)
Why this is correct
Active-active VPNGateway provides high availability and low latency by using multiple tunnels; it can be used with internet-based VPN.
Related concept
Read the scenario before looking for a memorised answer.
✓
Azure Virtual WAN with ExpressRoute
Why this is correct
Virtual WAN integrates with ExpressRoute and provides a hub-and-spoke architecture with high availability and low latency, suitable for MPLS.
Related concept
Read the scenario before looking for a memorised answer.
✓
Azure ExpressRoute
Why this is correct
ExpressRoute offers dedicated private connections with high SLA, low latency, and supports MPLS.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Traffic Manager
Why it's wrong here
Traffic Manager is a DNS-based load balancer, not a connectivity service for hybrid networking.
✗
Azure Private Link
Why it's wrong here
Private Link is used to access Azure services privately, not for hybrid connectivity between on-premises and Azure.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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-305 question in full detail.
Identify which AZ-305 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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 VPN Gateway (active-active) — Azure ExpressRoute provides dedicated private connections with high SLA and low latency; VPN Gateway with active-active configuration provides redundant IPsec tunnels; and ExpressRoute with ExpressRoute Global Reach extends connectivity across regions. All can use MPLS or existing circuits.
What should I do if I get this AZ-305 question wrong?
Identify which AZ-305 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Your company is designing a hybrid network architecture to connect an on-premises data center to Azure. The requirements include: high availability, low latency, and cost optimization. Which TWO options should you recommend?
medium
✓ A.ExpressRoute Gateway
B.Single ExpressRoute circuit
C.Site-to-Site VPN
D.ExpressRoute Direct
✓ E.Two ExpressRoute circuits from different providers
Why A: Option A is correct because ExpressRoute offers low latency and high bandwidth. Option C is correct because two ExpressRoute circuits from different providers provide high availability. Option B is incorrect because VPN Gateway can be used for backup but does not provide low latency. Option D is incorrect because ExpressRoute Direct is not required for high availability. Option E is incorrect because a single ExpressRoute circuit does not provide high availability.
Variation 2. Your company is designing a hybrid network architecture that connects multiple on-premises sites to Azure. You need to ensure high availability and redundancy for the connection. Which TWO solutions should you recommend? (Choose two.)
medium
✓ A.Deploy two ExpressRoute circuits in active-passive mode
B.Implement Azure DNS Private Resolver for resolution
✓ C.Use Azure VPN Gateway in active-active mode
D.Use a single VPN gateway with active-standby mode
E.Use a single ExpressRoute circuit with a VPN gateway as failover
Why A: Options A and D are correct. Active-passive ExpressRoute with redundant circuits provides high availability at the circuit level. VPN Gateway active-active mode provides redundancy for VPN connections. Option B (single ExpressRoute with VPN failover) works but is less redundant than two ExpressRoute circuits. Option C (single VPN gateway) is not highly available. Option E (Azure DNS) does not affect hybrid connectivity.
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This AZ-305 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-305 exam.
Question Discussion
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