Quick Answer
The answer is the Field Service mobile app, as it is the dedicated tool for technicians to record time and parts directly on work orders. This app allows field workers to log actual start and end times for labor and scan or enter inventory items used, syncing this data in real time with Dynamics 365 Field Service for accurate billing and reporting. On the MB-910 exam, this question tests your understanding of the core technician workflow versus back-office features; a common trap is confusing the mobile app with the Field Service Hub in the web interface, which is for dispatchers and managers, not for on-site recording. Remember that the mobile app is the technician’s on-the-ground companion for capturing both time and materials. A helpful memory tip is to think “Mobile for Materials and Minutes”—if the task involves physically recording work at a customer site, the mobile app is always the correct choice.
This MB-910 practice question tests your understanding of describe dynamics 365 field service. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 technician needs to record the time spent on a work order and the parts used. Which Field Service mobile app feature should the technician use?
Field Service mobile app
The mobile app allows technicians to log time and materials.
Customer portal
Why wrong: The customer portal is for customers to view service history.
Schedule board
Why wrong: The schedule board is used by dispatchers, not technicians in the field.
Power Platform admin center
Why wrong: The admin center is for configuration, not field use.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Field Service mobile app
The Field Service mobile app is the correct tool because it is specifically designed for technicians to record time and materials (parts) against work orders in real time. It integrates directly with Dynamics 365 Field Service to capture actual start/end times and inventory usage, syncing data back to the backend for billing and reporting.
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.
Field Service mobile app
Why this is correct
The mobile app allows technicians to log time and materials.
Related concept
Read the scenario before looking for a memorised answer.
Customer portal
Why it's wrong here
The customer portal is for customers to view service history.
Schedule board
Why it's wrong here
The schedule board is used by dispatchers, not technicians in the field.
Power Platform admin center
Why it's wrong here
The admin center is for configuration, not field use.
Common exam traps
The trap here is that candidates may confuse the Schedule board (a dispatcher tool) with the mobile app, or think the Customer portal allows technician input, but the exam specifically tests the distinction between execution tools (mobile app) and planning/administration tools.
Detailed technical explanation
The Field Service mobile app leverages offline-first capabilities via the Connected Field Service (CFS) framework, allowing technicians to record time entries and part usage even without internet connectivity. These records are stored locally using SQLite and synced to the Dataverse when connectivity is restored, ensuring data integrity. In real-world scenarios, this prevents billing delays when technicians work in remote areas with intermittent network access.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
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FAQ
Describe Dynamics 365 Field Service — This question tests Describe Dynamics 365 Field Service — Read the scenario before looking for a memorised answer..
The correct answer is: Field Service mobile app — The Field Service mobile app is the correct tool because it is specifically designed for technicians to record time and materials (parts) against work orders in real time. It integrates directly with Dynamics 365 Field Service to capture actual start/end times and inventory usage, syncing data back to the backend for billing and reporting.
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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Same concept, more angles
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. A technician needs to record time spent on a work order and the parts used. Which Dynamics 365 Field Service mobile capability should they use?
easyWhy C: The Field Service Mobile App is the correct capability because it is specifically designed for technicians in the field to perform tasks such as recording time spent on a work order and logging parts used. It provides offline-first functionality, allowing technicians to capture time entries and inventory consumption directly against a work order, which then syncs back to Dynamics 365 Field Service when connectivity is restored.
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Last reviewed: Jun 11, 2026
This MB-910 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 MB-910 exam.
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