Microsoft 70-357 actual dump : Developing Mobile Apps

70-357
  • Exam Code: 70-357
  • Exam Name: Developing Mobile Apps
  • Updated: Sep 11, 2026
  • Q & A: 55 Questions and Answers

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About Microsoft 70-357 Exam Questions

Failing the 70-357 exam means paying the registration fee all over again. Preparing with the 55 up-to-date practice questions from Actual4Dumps is by far the cheaper route to your Microsoft Developing Mobile Apps.

Microsoft 70-357 Exam Overview:

Certification Vendor:Microsoft
Exam Name:Developing Mobile Apps
Exam Number:70-357
Related Certifications:Microsoft Certified Solutions Developer (MCSD): App Builder
Passing Score:700/1000
Available Languages:French, Japanese, Simplified Chinese, Russian, Spanish, English, German, Portuguese (Brazil)
Certificate Validity Period:Retired (No longer available as a current exam)
Exam Format:Performance-based questions, Multiple Response, Multiple Choice, Drag & Drop
Exam Duration:150 minutes
Exam Price:USD 165 (approx.)
Real Exam Qty:45-60
Sample Questions:Free Download Latest 70-357 actual dumps
Exam Way:Onsite (at Pearson VUE test centers) and online proctored options (when offered before retirement).
Pre Condition:Candidates should have experience in mobile app development with C#, XAML, MVVM, Entity Framework, and Visual Studio. No formal prerequisites beyond experience.
Official Syllabus URL:https://learn.microsoft.com/en-us/learn/certifications/exams/70-357

Microsoft 70-357 Exam Syllabus Topics:

SectionObjectives
Feature Detection & Components- Implement feature detection for adaptive coding
- Implement notifications, background tasks, and reusable components
Data Management- Implement data access and data binding
- Access cloud data and Web APIs
User Interaction & Controls- Manage user input and custom interactions
- Create and use custom controls
Navigation & Lifecycle- Implement page navigation and lifecycle events
- Evaluate custom navigation patterns
Develop User Interfaces- Implement responsive and adaptive UI behaviors
- Develop a XAML page layout for an adaptive UI
Authentication & Security- Manage authentication and identity management

Microsoft Developing Mobile Apps FAQs: What Candidates Ask Most

The Microsoft Developing Mobile Apps is the official Microsoft exam that leads to the MCSA-Universal Windows Platform certification at the Professional level. Passing it validates your skills against Microsoft standards and proves your qualification to current and future employers. The credential is also connected with related certifications such as Microsoft Certified Solutions Developer (MCSD): App Builder, so it can serve as a solid step in a broader certification path.

The 70-357 exam has 45-60 questions in total and must be completed within 150 minutes. That leaves only a narrow time budget per item, so train yourself to flag a difficult question, move on, and circle back later instead of getting stuck. A week or two before your test date, run at least one full timed mock exam in the Actual4Dumps desktop or online test engine under the same 150 minutes limit, and repeat until you can finish with a few minutes left for review.

The passing score for the 70-357 exam is 700/1000, and the official registration fee is USD 165 (approx.). Keep in mind that a failed attempt is not discounted — retaking the exam means paying the full fee again — so it is wise not to book your seat until your practice scores sit comfortably above the passing mark. Working through the 55 questions at Actual4Dumps in timed mode is a reliable way to judge when you are truly ready.

Microsoft sets the following requirement for the 70-357 exam: Candidates should have experience in mobile app development with C#, XAML, MVVM, Entity Framework, and Visual Studio. No formal prerequisites beyond experience.. Eligibility rules can change from time to time, so always confirm the current prerequisites on the official exam page at https://learn.microsoft.com/en-us/learn/certifications/exams/70-357 before you register.

Yes. Actual4Dumps offers a free PDF demo for the Microsoft Developing Mobile Apps, so you can review real sample questions and judge the quality before paying anything. After your purchase, you receive 365 days of free updates — whenever the question pool changes, you get the latest version at no cost. Once that period expires, you can extend your update service at a 50% discount from your member zone.

If you take the 70-357 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee. To qualify, submit a scanned copy of your exam enrollment slip together with your official Score Report (PDF) within 2 days after the exam date, and your claim will be processed within 7 days. Note that the guarantee applies only to the corresponding exam: attempts taken within 3 days of purchase, downloaded-but-unused materials, free resources, and expired orders are not eligible, and the candidate name must match the purchaser name. If you would rather not refund, you can exchange the product for two free exam products of equal value while keeping the update service on your original purchase.

Delivery is instant: your files are available to download right after payment and are also sent to your email within one minute. If nothing arrives within 2 hours, contact our support team (and check your spam folder first). There is no limit on the number of computers you can install the product on.

The Microsoft Developing Mobile Apps is organized into 6 domains. Among the first ones are Feature Detection & Components, Develop User Interfaces, Data Management, and the remaining domains cover the rest of the official objectives. For the complete topic breakdown with every subtopic, see the full 70-357 exam outline above on this page.

Microsoft Developing Mobile Apps Sample Questions:

Question #1

You need to create a storyboard for a Universal Windows Platform (UWP) app that you are designing.
For which application does Microsoft provide design templates for UWP apps?

  • A. Microsoft Publisher
  • B. Microsoft PowerPoint
  • C. Adobe Photoshop
  • D. Microsoft Sway
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #2

Hotspot Question
You need to properly handle the size of the user interface objects.
How should you complete the method? To answer, select the appropriate code segment from each list in the answer area. NOTE: Each correct selection is worth one point.

Reveal Solution  Discussion  0

Correct Answer:


Topic 2, Background
You are developing a Universal Windows Platform (UWP) app for LitWare, Inc. that will assist video artists. The app allows artists to create videos, share videos through other mobile apps, and upload the videos through LitWare, Inc's web services. What helps set LitWarelnc's app apart from competitors is their focus on speed and performance.
Business requirements
Support many devices
Users may have phones, tablets, or laptops. The app must support all devices with a fluid layout that grows off-screen and adapts to each device.
Record video
Users must be able to record videos and view them in their videos library .
The app must display information about the recorded video .
Users must be able to edit the upload queue in the app.
Branding
The app must allow deferral and scheduling of video uploads.
Users must be able to view the status of video uploads.
Any videos created with this app or shared with this app must be uploaded without user interaction.
Download video
The app must have the option to automatically download videos.
Users must be able to initiate downloading of videos.
Share video
The app must allow be allowed to receive videos from other apps.
Technical requirements
Application structure
Technical requirements
Support multiple devices
The app must support the following:
- Use horizontal layout for larger screens .
- Use vertical layout for smaller screens .
- Use one layout control per view.
The app must be compatible with current and future XBOX app that use C++.
Uploading and downloading
The app must use a background operations to upload and download videos.
Code reuse
The app must use a common pool of XAML resources and custom controls.
All custom controls must use a consistent theme throughout the app.
You must create code that can be reused in C++, C#, JavaScript, whenever possible.
The app must call the background service to avoid duplication of code.
Security
End users must be authenticated using OAuth.
Web services must be authenticated.
Users must have the option to use single sign-on.
Recording
The app must use the microphone and webcam to support audio and video recording. In addition, the app must support the use of the back camera buttons, if present.
Integration:
Other apps must be able to share videos with this app through a Universal Windows Platform (UWP) Architecture and coding style The app must follow the Model-View-ViewModel (MVVM) pattern.
The app's user interface (UI) must be optimized for performance.
The app must use compile time coding techniques over runtime.
Package appxmanifest
Relevant portions of the app files are shown below. Line numbers in the code segments are included for reference only and include a two-character prefix that denotes the specific file to which they belong.

Background Task
Relevant portions of the app files are shown below. Line numbers in the code segments are included for reference only and include a two-character prefix that denotes the specific file to which they belong.

Question #3

Hotspot Question
You are developing a Universal Windows Platform (UWP) app by using XAML and C#.
A team member has written a XAML page includes a button with an event handler method named ButtonSendNotification_Click() registered to the Click event.
You are reviewing the following code segment written by the team member (line numbers are added for reference only):



Reveal Solution  Discussion  0

Correct Answer:

Question #4

You must create a project for shared code.
Solution: You implement the shared code in a Windows Runtime component.
Does this meet the goal?

  • A. Yes
  • B. No
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #5

Drag and Drop Question
You are developing a Universal Windows Platform (UWP) app that needs to run on multiple types of devices.
The app must detect whether a device has a physical camera button.
For devices that have a physical camera button, you need to ensure that the app continues to function.
How should you complete the code? To answer, drag the appropriate 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 scroll to view content.

Reveal Solution  Discussion  0

Correct Answer:

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