The answer is to increase the number of concurrent listeners on the queue. This directly boosts throughput by allowing multiple message receivers to process messages in parallel from the same Service Bus queue, which alleviates backlogs during peak hours without requiring any changes to the existing processing logic. On the AZ-204 exam, this scenario tests your understanding of how Service Bus’s competing consumer pattern scales horizontally—a common trap is confusing concurrency with sessions or lock duration, which do not increase processing capacity. Remember that sessions enforce ordered, single-consumer processing and actually reduce parallelism, while lock duration only prevents premature abandonment. A simple memory tip: “More listeners, more throughput—sessions slow you down.”
AZ-204 Practice Question: Connect to and consume Azure services and third-party services
This AZ-204 practice question tests your understanding of connect to and consume azure services and third-party 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.
A company is developing an application that processes orders. The application uses Azure Service Bus queues to decouple order submission from processing. During peak hours, some messages are not processed within the required time, causing order delays. The team needs to increase throughput without changing the existing message processing logic. What should they do?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the number of concurrent listeners on the queue.
Increasing the number of concurrent listeners (option C) allows more messages to be processed simultaneously, improving throughput without changes to processing logic. Option A adds sessions which require changes to consumer logic. Option B increases lock duration but not throughput. Option D uses a different service that may not fit the architecture.
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.
✗
Use Azure Event Hubs instead of Service Bus.
Why it's wrong here
Event Hubs is for telemetry ingestion, not decoupled command processing.
✓
Increase the number of concurrent listeners on the queue.
Why this is correct
More listeners allow parallel processing, increasing throughput.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable sessions on the queue to group related messages.
Why it's wrong here
Sessions require consumer code changes and do not directly increase throughput.
✗
Increase the lock duration on messages.
Why it's wrong here
Longer lock duration does not increase processing rate.
Common exam traps
Common exam trap: answer the scenario, not the keyword
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.
Trap categories for this question
Command / output trap
Event Hubs is for telemetry ingestion, not decoupled command processing.
Detailed technical explanation
How to think about this question
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.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
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.
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..
What is the correct answer to this question?
The correct answer is: Increase the number of concurrent listeners on the queue. — Increasing the number of concurrent listeners (option C) allows more messages to be processed simultaneously, improving throughput without changes to processing logic. Option A adds sessions which require changes to consumer logic. Option B increases lock duration but not throughput. Option D uses a different service that may not fit the architecture.
What should I do if I get this AZ-204 question wrong?
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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