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AZ-305 · Question 46 · Domain 4.2: Design an Application Architecture
You are designing an API architecture using Azure API Management (APIM).
You have a backend legacy API that returns XML data. You are exposing this API to modern mobile applications that only understand JSON. Furthermore, to protect the backend from being overwhelmed, you must restrict mobile clients to a maximum of 100 calls per minute.
Which TWO APIM policies should you implement? (Select TWO)
You are designing an API architecture using Azure API Management (APIM).
You have a backend legacy API that returns XML data. You are exposing this API to modern mobile applications that only understand JSON. Furthermore, to protect the backend from being overwhelmed, you must restrict mobile clients to a maximum of 100 calls per minute.
Which TWO APIM policies should you implement? (Select TWO)
Answer options:
A.
rate-limit-by-key
B.
quota-by-key
C.
xml-to-json
D.
json-to-xml
E.
check-header
How to approach this question
Identify the policy for format conversion (xml-to-json) and the policy for short-term throttling (rate-limit).
Full Answer
Azure API Management uses policies to change the behavior of APIs through configuration. To support modern clients, the `xml-to-json` policy is applied to the outbound response to convert the legacy XML into JSON. To protect the backend from spikes, the `rate-limit-by-key` policy is used to throttle requests (e.g., 100 calls per minute).
Common mistakes
Confusing `rate-limit` with `quota`. Rate limits protect against short-term spikes (calls per minute). Quotas enforce long-term business limits (calls per month).
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