The answer is Azure Event Hubs, which is the correct choice because it is a fully managed, real-time data ingestion service that provides native Apache Kafka compatibility, allowing you to stream millions of events per second using existing Kafka clients and tooling without managing any Kafka infrastructure. On the Microsoft Azure Fundamentals AZ-900 exam, this question tests your understanding of Azure’s core data ingestion services and their integration capabilities; a common trap is confusing Event Hubs with Azure Service Bus or Azure IoT Hub, but remember that Event Hubs is specifically designed for high-throughput, Kafka-compatible event streaming at massive scale. To lock this in, use the memory tip: “Event Hubs is the Kafka-friendly firehose for millions of events per second.”
AZ-900 Describe Azure architecture and services Practice Question
This AZ-900 practice question tests your understanding of describe azure architecture and services. 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.
Which Azure service provides a managed Apache Kafka-compatible event streaming service for ingesting millions of events per second?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Event Hubs
Azure Event Hubs is a fully managed, real-time data ingestion service that is natively compatible with Apache Kafka, allowing you to use existing Kafka clients and tooling to stream millions of events per second. It provides a partitioned consumer model, high throughput, and low-latency event ingestion, making it the correct choice for a managed Kafka-compatible event streaming service.
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 Service Bus
Why it's wrong here
Service Bus handles enterprise messaging patterns (queues/topics) but is not optimized for millions of events per second streaming.
✗
Azure Event Grid
Why it's wrong here
Event Grid routes discrete events; Event Hubs is the high-throughput event streaming platform.
✓
Azure Event Hubs
Why this is correct
Event Hubs is the managed Kafka-compatible service for high-throughput event streaming at millions of events per second.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Queue Storage
Why it's wrong here
Queue Storage is simple message queuing, not designed for high-throughput streaming.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure Event Hubs with Azure Service Bus because both handle messages, but Service Bus is a broker for enterprise messaging with features like dead-letter queues and sessions, whereas Event Hubs is a streaming platform optimized for high-throughput, Kafka-compatible event ingestion.
Detailed technical explanation
How to think about this question
Under the hood, Azure Event Hubs implements the Kafka protocol (including Kafka Connect and Kafka Streams) by exposing a Kafka endpoint on port 9093, enabling seamless migration from self-managed Kafka clusters without code changes. It uses a partitioned event stream model where each partition is an ordered sequence of events, and throughput is scaled by increasing the number of throughput units or processing units. A real-world scenario is a financial trading platform that ingests millions of stock tick events per second from multiple exchanges, where Event Hubs provides the durability and replay capability needed for downstream analytics.
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.
TExam Day Tips
→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
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-900 question in full detail.
Describe Azure architecture and services — This question tests Describe Azure architecture and services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Azure Event Hubs — Azure Event Hubs is a fully managed, real-time data ingestion service that is natively compatible with Apache Kafka, allowing you to use existing Kafka clients and tooling to stream millions of events per second. It provides a partitioned consumer model, high throughput, and low-latency event ingestion, making it the correct choice for a managed Kafka-compatible event streaming service.
What should I do if I get this AZ-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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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. Which Azure service provides a managed Apache Kafka-compatible event streaming service for high-throughput data pipelines?
medium
A.Azure Service Bus
✓ B.Azure Event Hubs
C.Azure Queue Storage
D.Azure Event Grid
Why B: Azure Event Hubs is the correct answer because it provides a fully managed, native Apache Kafka-compatible event streaming platform designed for high-throughput data ingestion and processing. It supports the Kafka protocol (including Kafka Connect and Kafka Streams) without requiring you to run any Kafka clusters, making it ideal for real-time data pipelines and analytics.
Variation 2. Which Azure service provides a managed Apache Kafka-as-a-service offering that allows existing Kafka applications to work without code changes?
medium
A.Azure HDInsight with Kafka
✓ B.Azure Event Hubs with Kafka protocol support
C.Azure Service Bus
D.Azure Event Grid
Why B: Azure Event Hubs with Kafka protocol support provides a fully managed, Apache Kafka-compatible endpoint that allows existing Kafka producer and consumer applications to connect without any code changes. This service leverages the Kafka protocol 1.0 and later, enabling seamless migration of Kafka workloads to Azure while benefiting from Event Hubs' scalability and security features.
Variation 3. Which Azure service provides managed Apache Kafka streaming without managing brokers or Zookeeper?
medium
A.Azure Service Bus with Kafka protocol
✓ B.Azure Event Hubs with Kafka endpoint
C.Azure HDInsight Kafka cluster
D.Azure Stream Analytics with Kafka input
Why B: Azure Event Hubs with Kafka endpoint is correct because it provides a fully managed, real-time data streaming platform that is compatible with Apache Kafka producer and consumer APIs, allowing you to stream data into Event Hubs without managing any Kafka brokers or Zookeeper nodes. This service abstracts the underlying cluster management, scaling, and availability, making it a true serverless Kafka experience.
Variation 4. Which Azure service provides a platform for running Apache Kafka for real-time event streaming without managing infrastructure?
medium
A.Azure Service Bus
B.Azure Stream Analytics
✓ C.Azure Event Hubs with Kafka endpoint
D.Azure HDInsight Kafka cluster
Why C: Azure Event Hubs with Kafka endpoint is correct because it provides a fully managed, Kafka-protocol-compatible event streaming service that allows you to run Apache Kafka workloads without provisioning or managing any Kafka clusters. This enables real-time event streaming using existing Kafka producers and consumers while Azure handles the underlying infrastructure, scaling, and high availability.
Last reviewed: Jun 11, 2026
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