Quick Answer
The answer is Http5xx. This Azure Monitor metric directly tracks the count of HTTP 500-level server error responses returned by your App Service, so when you need to monitor HTTP 500 errors with Azure Monitor metric Http5xx, it provides the exact count without requiring any additional aggregation or filtering. On the Microsoft Azure Developer Associate AZ-204 exam, this tests your understanding of the specific App Service metrics available in Azure Monitor, often appearing in scenario-based questions where you must distinguish between Http5xx for server errors and Http4xx for client errors. A common trap is confusing these two, as both track HTTP status codes but serve different purposes. Remember the memory tip: "5 is server, 4 is client"—the first digit of the HTTP status code tells you where the problem lies, so Http5xx always means the server is at fault.
This AZ-204 practice question tests your understanding of develop azure compute 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.
You need to monitor the performance of an Azure App Service web app. You want to track the number of HTTP 500 errors over the last hour. Which Azure Monitor metric should you use?
Data In
Why wrong: Data In measures incoming bytes, not errors.
Average Response Time
Why wrong: Response time measures latency, not errors.
Http5xx
Http5xx metric tracks number of server error responses.
Requests
Why wrong: Requests metric counts all requests, not just errors.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Http5xx
The Http5xx metric in Azure Monitor tracks the count of HTTP 500-level server error responses returned by your App Service. Since the question specifically asks for the number of HTTP 500 errors over the last hour, this metric directly provides that count without any aggregation or filtering needed.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Data In
Why it's wrong here
Data In measures incoming bytes, not errors.
Average Response Time
Why it's wrong here
Response time measures latency, not errors.
Http5xx
Why this is correct
Http5xx metric tracks number of server error responses.
Related concept
Read the scenario before looking for a memorised answer.
Requests
Why it's wrong here
Requests metric counts all requests, not just errors.
Common exam traps
The trap here is that candidates may confuse 'Http5xx' with 'Requests' or 'Average Response Time', thinking that a high error count would be reflected in those metrics, but they do not directly count error status codes.
Detailed technical explanation
Under the hood, the Http5xx metric is collected by the App Service platform from the IIS HTTP status logs, counting every response where the status code falls in the 500–599 range. This metric is available at 1-minute granularity and can be used in alerts or dashboards to detect server-side failures. In a real-world scenario, a sudden spike in Http5xx might indicate a code deployment issue or a downstream dependency failure, while a gradual increase could point to resource exhaustion.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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FAQ
Develop Azure compute solutions — This question tests Develop Azure compute solutions — Read the scenario before looking for a memorised answer..
The correct answer is: Http5xx — The Http5xx metric in Azure Monitor tracks the count of HTTP 500-level server error responses returned by your App Service. Since the question specifically asks for the number of HTTP 500 errors over the last hour, this metric directly provides that count without any aggregation or filtering needed.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This AZ-204 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-204 exam.
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