MB-230 Practice Question: Configure Representative Experience and Routing
You are setting up a new workstream for the 'Voice' channel in Dynamics 365 Customer Service. The organization wants to ensure that calls are routed to the queue with the longest idle agent. Which assignment method should you configure for the queue?
⚠ Common exam trap
Candidates often confuse longest idle with round robin, but round robin does not track idle time and simply rotates assignments.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Longest idle
The longest idle assignment method is designed to distribute work to agents who have been idle the longest, ensuring that no agent is overused while others wait. For voice channels, this method helps maintain balanced utilization and can reduce customer wait times. Other methods like round robin or highest capacity do not prioritize idle time, so they would not meet the requirement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Round robin
Why it's wrong here
Round robin assigns work items to agents in a circular order, ensuring even distribution. It does not consider idle time, so it would not route to the longest idle agent. This method is more about fairness in distribution rather than minimizing wait time for the next call.
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Highest capacity
Why it's wrong here
Highest capacity assigns work to the agent with the most available capacity, which is based on the number of concurrent sessions they can handle. It does not consider idle time, so it would not necessarily route to the longest idle agent. This method is better for maximizing throughput rather than balancing idle time.
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Skill-based
Why it's wrong here
Skill-based assignment matches work items to agents based on skills and proficiency. While important for specialized routing, it does not consider idle time. If the requirement is solely to route to the longest idle agent, skill-based would not be appropriate unless combined with idle time criteria, which is not its primary function.
- ✓
Longest idle
Why this is correct
Longest idle assignment routes the work item to the agent who has been idle for the longest period. This method helps balance workload by giving priority to agents who have not received a call recently, which aligns with the requirement. It is specifically designed to reduce agent idle time and improve customer wait times.
About these practice questions
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Microsoft exam blueprint
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