Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A company has an Azure API Management instance deployed in the internal virtual network (VNet) mode. They want to securely expose their backend APIs to external partners over the internet. External partners need to authenticate using OAuth2 tokens. The company also wants to enforce rate limits (throttling) per subscription, cache responses, and enable CORS. Which Azure service should they use to expose the APIs?
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
Azure Application Gateway
Application Gateway provides layer-7 load balancing, SSL termination, and URL routing, but it does not include API management features such as OAuth2 authentication, subscription-based rate limiting, or API gateway policies.
B
Best answer
Azure API Management
Azure API Management is a full-featured API gateway that supports OAuth2, rate limiting, caching, CORS, and many other policies. It can be deployed with a public endpoint to securely expose APIs to external partners.
C
Distractor review
Azure Front Door
Azure Front Door is a global load balancer and CDN that provides SSL offload and caching, but it does not include API management capabilities like OAuth2 or subscription-based throttling.
D
Distractor review
Azure Traffic Manager
Traffic Manager is a DNS-based traffic distributor that routes users to different endpoints based on priority or performance. It does not provide API gateway functionality.
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 API Management — Azure API Management provides a comprehensive API gateway that can be deployed in external-facing mode. It supports OAuth2 authentication, rate limiting, response caching, and CORS policies. Even if the instance is internal, you can configure a public endpoint by deploying API Management in an external VNet mode or using a separate external instance. The service natively provides the required features. Application Gateway is a layer-7 load balancer but does not include API management features like subscription-based throttling or OAuth2. Front Door is a global load balancer and CDN, not an API gateway. Traffic Manager is DNS-based routing.
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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