Quick Answer
The answer is to enable sessions on the topic and set the SessionId property on messages. This configuration is correct because Azure Service Bus sessions create a logical grouping of related messages, and within that session, the broker strictly preserves the order of delivery and processing, guaranteeing FIFO ordering. On the AZ-204 exam, this concept tests your understanding of how to maintain message sequence in distributed systems, often appearing in scenario-based questions where you must choose between sessions, partitioning, or duplicate detection. A common trap is confusing partitioning (for high availability) or duplicate detection (for idempotency) with ordering—neither ensures FIFO. Remember the memory tip: “SessionId is the key to FIFO order; without it, messages are just a queue.”
This AZ-204 practice question tests your understanding of connect to and consume azure services and third-party services. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Your application uses Azure Service Bus topics. You need to ensure that messages are processed in the order they were sent within a session. What must you configure?
Enable duplicate detection.
Why wrong: Duplicate detection does not ensure order.
Enable partitioning on the topic.
Why wrong: Partitioning is for throughput, not ordering.
Enable sessions on the topic and set the SessionId property on messages.
Sessions guarantee FIFO within a session.
Set the MessageId property to a GUID.
Why wrong: MessageId is for duplicate detection.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Enable sessions on the topic and set the SessionId property on messages.
Option B is correct because Service Bus sessions enable FIFO ordering within a session. The sender must set the SessionId property. Option A is wrong because message sessions require sessions to be enabled. Option C is wrong because partitioning is for high availability. Option D is wrong because duplicate detection prevents duplicates but does not guarantee order.
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.
Enable duplicate detection.
Why it's wrong here
Duplicate detection does not ensure order.
Enable partitioning on the topic.
Why it's wrong here
Partitioning is for throughput, not ordering.
Enable sessions on the topic and set the SessionId property on messages.
Why this is correct
Sessions guarantee FIFO within a session.
Related concept
Read the scenario before looking for a memorised answer.
Set the MessageId property to a GUID.
Why it's wrong here
MessageId is for duplicate detection.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Identify which AZ-204 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Connect to and consume Azure services and third-party services — This question tests Connect to and consume Azure services and third-party services — Read the scenario before looking for a memorised answer..
The correct answer is: Enable sessions on the topic and set the SessionId property on messages. — Option B is correct because Service Bus sessions enable FIFO ordering within a session. The sender must set the SessionId property. Option A is wrong because message sessions require sessions to be enabled. Option C is wrong because partitioning is for high availability. Option D is wrong because duplicate detection prevents duplicates but does not guarantee order.
Identify which AZ-204 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 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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