Try and practice the latest Microsoft : 70-357 real questions & answers

Last Updated: Sep 16, 2026

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Short on study time before your 70-357 exam? The 55 practice questions at Actual4Cert concentrate your effort on exactly what the Microsoft Developing Mobile Apps exam measures, and every set is kept current for 2026.

Microsoft 70-357 Exam Overview:

Certification Vendor:Microsoft
Exam Name:Developing Mobile Apps
Exam Number:70-357
Passing Score:700 (on a 1000 scale)
Related Certifications:MCSA: Web Applications
Exam Format:Case studies, Multiple choice, Multiple response, Drag and drop
Exam Duration:150 minutes
Available Languages:Spanish, German, English, Korean, Chinese (Simplified), French, Japanese
Exam Price:USD 165 (historical, varies by region and date)
Certificate Validity Period:Retired (no longer available; certification was historically valid for 2 years)
Real Exam Qty:Approximately 40–60
Recommended Training:UWP and Windows App Development learning paths
Microsoft Learn (Legacy exam training resources)
Exam Registration:Microsoft Certification Dashboard
Pearson VUE Microsoft Exams
Sample Questions: DOWNLOAD DEMO
Exam Way:Online proctored or authorized test center (historically via Pearson VUE)
Pre Condition:No strict prerequisites; intended for developers with experience in HTML5, JavaScript, and mobile application development concepts.
Official Syllabus URL:https://learn.microsoft.com/en-us/credentials/certifications/exams/70-357/

Microsoft 70-357 Exam Syllabus Topics:

SectionObjectives
Topic 1: Deployment and security- Implement authentication and authorization
- Ensure application security best practices
- Package and deploy mobile applications
Topic 2: Debugging, testing, and performance optimization- Implement testing strategies
- Debug application issues
- Optimize performance and responsiveness
Topic 3: Design and develop mobile apps- Select appropriate app models and frameworks
- Design application UI/UX for mobile devices
- Plan application architecture
Topic 4: Implement application functionality- Implement navigation and app lifecycle management
- Develop client-side logic
- Integrate APIs and services
Topic 5: Data storage and management- Work with remote data sources
- Use local storage mechanisms

Frequently Asked Questions About Microsoft Developing Mobile Apps

The Microsoft Developing Mobile Apps exam (exam code 70-357) is the official Microsoft exam that leads to the MCSA: Web Applications (legacy / retired) certification, sitting at the Associate level of the Microsoft certification track. It is also connected with MCSA: Web Applications. If this is the credential you are working toward, the 55 practice questions at Actual4Cert map directly to its objectives.

The Microsoft Developing Mobile Apps exam includes Approximately 40–60 questions, and you have 150 minutes to complete them. Divide the time limit by the question count and you get a tight average pace per item, so train yourself to flag time-consuming questions and return to them later instead of getting stuck. Before test day, run at least one full timed session in the Actual4Cert test engine under the same limits — the clock should never surprise you.

The passing score for Microsoft Developing Mobile Apps is 700 (on a 1000 scale), and the official registration fee is USD 165 (historical, varies by region and date). A failed attempt means paying that fee in full again, so your preparation budget deserves the same attention as your study plan. A practical rule: book your exam date only after you can finish a Actual4Cert practice test comfortably above the passing score more than once.

According to Microsoft, candidates should meet the following before registering: No strict prerequisites; intended for developers with experience in HTML5, JavaScript, and mobile application development concepts.. Requirements can change, so confirm the latest details on the official exam page before you register.

You can register for the Microsoft Developing Mobile Apps exam through the official channels below:

Exam delivery: Online proctored or authorized test center (historically via Pearson VUE).

Microsoft lists the following official training options for this exam:

Formal training builds the theory; pair it with the 55 practice questions from Actual4Cert to find out whether you are genuinely ready for the exam.

Yes. A free PDF demo of the 70-357 practice questions is available to download, so you can judge the format and quality before paying anything. Every purchase also includes 365 days of free updates, and if your product expires you can extend the update service at a 50% discount.

Your order is covered by a conditional 100% money-back guarantee: if you take the corresponding exam within 60 days of purchase and do not pass, you may apply for a full refund. Exams taken within 3 days of purchase are not eligible, nor are free materials or expired orders, and the candidate name must match the payer name. To claim, submit a scanned enrollment slip and your official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Prefer to keep studying? You can instead exchange your purchase for two free products of equal value while keeping the update service on your original one. Delivery itself is immediate: your product unlocks for instant download right after payment and a copy is emailed to you within a minute — if nothing arrives within 2 hours, contact our support team. There is no limit on the number of computers you can install it on.

The Microsoft Developing Mobile Apps blueprint is divided into 5 major domains, starting with Deployment and security, Design and develop mobile apps, and Debugging, testing, and performance optimization. The full breakdown, including every subdomain and its weighting, is listed in the Exam Topics section above — review it against your own weak areas before scheduling the exam.

Microsoft Developing Mobile Apps Sample Questions:

Question #1

Drag and Drop Question
You need to download the bank statements and alert the user when the download is complete.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

Reveal Solution  Discussion  0

Correct Answer:

Question #2

Drag and Drop Question
You need to meet the storage requirements.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of the answer area and arrange them in the correct order.

Reveal Solution  Discussion  0

Correct Answer:

Question #3

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:

Question #4

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

Correct Answer: D  🗳️

Question #5

Your are developing a Universal Windows Platform (UWP) app that uses XAML and C#.
The app must use the Model-View-ViewModel (MVVM) pattern.
The user interface (UI) triggers an event.
You need to bind the event to a view model method.
What should you do?

  • A. Create a custom behavior and attach the behavior to the UI element. Bind the behavior's event trigger to the command declared in the view model.
  • B. Create a new class that implements the IValueConverter interface.
    Define the class as a new resource in XAML Use Static Resource Markup Extension to access the view model method.
  • C. Create a new base class for the UI element. Update the base class to call the method within the view model.
  • D. Create an attached property of type !Command, Bind the UI element's event to the attached property.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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