Exam Name: Developing Mobile Apps
Certification Provider: Microsoft
Corresponding Certification: MCSA-Universal Windows Platform
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From a free demo to downloadable practice files, browser-based testing, and checkout supported by McAfee security services, Actual4dump brings the key 070-357 preparation tools together in one place. Candidates for Microsoft Developing Mobile Apps can use the 55 practice questions to plan, test, and revisit their knowledge in 2026.
Microsoft 070-357 Exam Overview:
| Certification Vendor: | Microsoft |
|---|---|
| Exam Name: | Developing Mobile Apps |
| Exam Number: | 70-357 |
| Passing Score: | 700 out of 1000 |
| Exam Price: | $165 USD (varies by region) |
| Certificate Validity Period: | Retired as of January 31, 2021; certifications earned remain valid until expiration |
| Related Certifications: | MCSD: App Builder MCSA: Universal Windows Platform |
| Exam Duration: | 150 minutes |
| Exam Format: | Drag-and-drop, Performance-based items, Multiple-choice, Case studies |
| Available Languages: | English, Russian, Spanish, Portuguese (Brazil), Chinese (Simplified), Japanese, French, Chinese (Traditional), German |
| Real Exam Qty: | 40-60 |
| Recommended Training: | Microsoft Official Learning |
| Exam Registration: | Microsoft Exam Page |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Proctored at authorized test centers or online proctoring; retired since Jan 31, 2021 |
| Pre Condition: | Typically 2+ years of experience developing Windows apps with C# and XAML; familiarity with MVVM, Entity Framework, and authentication technologies; Visual Studio 2015+ recommended |
| Official Syllabus URL: | https://learn.microsoft.com/en-us/credentials/certifications/exams/70-357/ |
Microsoft 070-357 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Implement notifications, background tasks, and reusable components | 15-20% | - Create and schedule background tasks - Implement toast, tile, and badge notifications - Implement app services and inter-app communication - Build reusable libraries and components |
| Topic 2: Manage authentication and identity management | 10-15% | - Manage tokens and secure storage - Implement authorization and role-based access - Implement Microsoft Account and Azure AD authentication |
| Topic 3: Develop a XAML page layout for an adaptive UI | 10-15% | - Configure grid, alignment, margins, and padding - Implement responsive and adaptive UI with VisualStateManager and AdaptiveTriggers - Create and use custom controls - Select appropriate XAML layout panels |
| Topic 4: Manage user input and custom user interactions | 10-15% | - Support touch, mouse, keyboard, and pen input - Integrate share contracts and app extensions - Implement gestures and custom interactions |
| Topic 5: Implement data access and data binding | 20-25% | - Access data using Entity Framework - Apply MVVM pattern and data binding - Access cloud and local file system data - Consume REST services and JSON data |
| Topic 6: Implement feature detection for adaptive coding | 10-15% | - Detect device capabilities and features - Handle different form factors and resolutions - Implement adaptive code paths |
| Topic 7: Implement page navigation and lifecycle events | 10-15% | - Choose navigation patterns (Hub, Master/Details, Tabs, Nav Pane) - Implement command bars, menus, and dialogs - Implement navigation using Frame and navigation helpers - Manage app suspension, resuming, and activation |
Frequently Asked Questions for the Microsoft 070-357 Exam
The 070-357 exam, Developing Mobile Apps, assesses whether a candidate can apply Microsoft knowledge to the skills measured by this credential. It is associated with the MCSA: Universal Windows Platform, MCSD: App Builder certification. The certification is positioned at the Professional level. Related credentials include MCSA: Universal Windows Platform, MCSD: App Builder.
The 070-357 exam includes 40-60 questions and allows 150 minutes. Plan your pacing before exam day rather than calculating it under pressure. Timed sessions with Actual4dump practice tests can help you decide when to flag a difficult item, keep moving, and reserve enough time for a final review.
The published passing score for Microsoft Developing Mobile Apps is 700 out of 1000, and the official exam fee is $165 USD (varies by region). A retake requires budgeting for the full official fee again, so it is sensible to complete several timed practice tests before scheduling. Consistent results across the 55 practice questions can give you a clearer picture of your readiness.
The stated prerequisite information for Microsoft Developing Mobile Apps is: Typically 2+ years of experience developing Windows apps with C# and XAML; familiarity with MVVM, Entity Framework, and authentication technologies; Visual Studio 2015+ recommended Before registering, review the eligibility details on the official exam page to confirm the requirements.
You can register for Microsoft Developing Mobile Apps through the following channels:
The available exam delivery format is Proctored at authorized test centers or online proctoring; retired since Jan 31, 2021.
The following official training resources are recommended for Microsoft Developing Mobile Apps:
After reviewing these training options, you can reinforce each topic with 55 practice questions from Actual4dump.
Yes. Actual4dump provides a free PDF demo so you can review the format and quality of the Microsoft Developing Mobile Apps practice questions before placing an order. Your purchase includes 365 days of free updates, and you can extend the update service after expiration at a 50% discount.
If you take the corresponding 070-357 exam within 60 days of purchase and do not pass, you may apply for a full refund under the 100% Money Back Guarantee. Claims based on an exam taken within 3 days of purchase are not eligible; free materials, expired orders, and downloaded products that were not used before sitting for the exam are also excluded. The candidate name must match the payer name.
To apply, submit a scanned enrollment slip and the official Score Report PDF within 2 days after the exam. Eligible requests are processed within 7 days. If you prefer an alternative, you may receive two free products of equal value and keep the update service for your original purchase.
Delivery is instant after payment. Your download is also sent to your email within one minute; if it has not arrived within 2 hours, contact customer service. There is no limit on the number of computers on which the material can be installed.
The published Microsoft Developing Mobile Apps outline contains 7 major domains. The opening domains include:
- Manage user input and custom user interactions (10-15%)
- Implement data access and data binding (20-25%)
- Implement feature detection for adaptive coding (10-15%)
Review the complete Exam Topics section above for every domain and subtopic before planning your study time.
Microsoft Developing Mobile Apps Sample Questions:
Question 1
You need to ensure that the Time line app meets the XAML coding requirements.
In Settings.xaml, which markup segment should you select to replace the markup segment at line AS06?
A. 
B. 
C. 
D. 
Question 2
You need to implement the appropriate XAML layout for the Timeline app.
Solution: You create an instance of a RelativePanel class.
Does this meet the goal?
A. Yes
B. No
Question 3
Hotspot Question
You must evaluate the code in CredentialManager.cs. For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point.
Question 4
Drag and Drop Question
You are developing a Universal Windows Platform (UWP) app. The app runs on muJriplcdevice faming including desktop, Windows Phone, and Xbox.
The app must be able to access a users media playlists if the device supports this feature, If the device does not support this feature, the app must continue to function.
You need to detect whether a device supports accessing user playlists.
How should you complete the relevant code? To answer, drag the approprate code segments to the correct location or locations, Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or not at all. You may need to drag the split bar between panes or scroll to view content.
Question 5
You are designing a roadside assistance mobile app.
The app displays a persistent list of links to pages.
The app displays a persistent list of links to pages.
The pages provide a quick way to move between different views of the app.
You need to recommend a user interface pattern that meets the following requirements:
- Allow users to navigate to frequently accessed, distinct content
categories,
- Provide two or more content pones that have corresponding category
headers.
- Display the navigation controls on the top of the screen.
- Highlight the currently selected navigation control.
Which pattern should you recommend?
A. tabs and pivots
B. active canvas
C. master/details
D. hub
Solutions:
| Question 1 Answer: C | Question 2 Answer: A | Question 3 Answer: Only visible for members | Question 4 Answer: Only visible for members | Question 5 Answer: D |
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