A company deploys a web application on multiple Azure VMs. They need to distribute incoming HTTP traffic across the VMs, offload SSL/TLS termination, and maintain session persistence (sticky sessions) so that all requests from a user session go to the same backend VM. Which Azure load balancing solution should they use?
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.
Best answer
Azure Application Gateway
Application Gateway is a layer-7 load balancer that supports SSL offloading, cookie-based session affinity (sticky sessions), and HTTP-based routing.
Distractor review
Azure Load Balancer
Azure Load Balancer operates at layer-4 and can distribute traffic based on IP and port. It does not offload SSL or provide application-layer session persistence.
Distractor review
Azure Traffic Manager
Traffic Manager is a DNS-based traffic routing service that directs traffic to endpoints based on performance or geographic location. It does not offload SSL or provide sticky sessions.
Distractor review
Azure Front Door
Front Door is a global layer-7 load balancer with SSL offload and session affinity, but it is designed for global multi-region deployments and includes additional features like WAF. Application Gateway is the correct choice for a region-specific load balancer.
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 company is designing hub-and-spoke networking. Spoke VNets must use a central Azure Firewall for outbound internet traffic. Which two configurations are required?
Question 2
A company is designing private access to a PaaS database from workloads in a VNet. The database should not be reachable over its public endpoint. What should be recommended?
Question 3
A data platform must support analytical queries over petabytes of files in a data lake, while preserving hierarchical namespaces and fine-grained ACLs. Which storage service should you design around?
Question 4
A database workload has an RPO of 15 minutes and an RTO of 4 hours. Cost is more important than near-zero data loss. Which design is usually more appropriate than synchronous multi-region replication?
Question 5
A hub-and-spoke Azure network must centralize outbound inspection and still allow spokes to resolve private endpoint DNS names. Which two components are commonly required? (Choose 2.)
Question 6
A multinational company uses Microsoft Entra ID and several Azure subscriptions. Security administrators need to review privileged role assignments every month and require justification for continued access. Which design should be recommended?
FAQ
Questions learners often ask
What does this AZ-305 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Azure Application Gateway — Azure Application Gateway is a layer-7 load balancer that provides HTTP/HTTPS load balancing, SSL offload, session persistence, and URL-based routing. Azure Load Balancer operates at layer-4 and does not offload SSL or provide sticky sessions based on application cookies. Azure Traffic Manager is a DNS-based global load balancer. Azure Front Door is a global layer-7 load balancer but is more suited for multi-region scenarios.
What should I do if I get this AZ-305 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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