Exam Name: Developing Mobile Apps
Certification Provider: Microsoft
Corresponding Certification: MCSA-Universal Windows Platform
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Instant Download Microsoft : 070-357 Questions & Answers as PDF & Test Engine
Updated: Sep 12, 2026
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Microsoft 070-357 Exam Overview:
| Certification Vendor: | Microsoft |
|---|---|
| Exam Name: | Developing Mobile Apps |
| Exam Number: | 70-357 |
| Real Exam Qty: | Approximately 40–60 |
| Available Languages: | Spanish, German, Chinese (Simplified), English, Japanese, French, Korean |
| Exam Duration: | 150 minutes |
| Exam Format: | Multiple choice, Multiple response, Case studies, Drag and drop |
| Passing Score: | 700 (on a 1000 scale) |
| Certificate Validity Period: | Retired (no longer available; certification was historically valid for 2 years) |
| Related Certifications: | MCSA: Web Applications |
| Exam Price: | USD 165 (historical, varies by region and date) |
| Recommended Training: | UWP and Windows App Development learning paths Microsoft Learn (Legacy exam training resources) |
| Exam Registration: | Pearson VUE Microsoft Exams Microsoft Certification Dashboard |
| 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 070-357 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Design and develop mobile apps | - Select appropriate app models and frameworks - Design application UI/UX for mobile devices - Plan application architecture |
| Deployment and security | - Package and deploy mobile applications - Ensure application security best practices - Implement authentication and authorization |
| Debugging, testing, and performance optimization | - Debug application issues - Optimize performance and responsiveness - Implement testing strategies |
| Data storage and management | - Use local storage mechanisms - Work with remote data sources |
| Implement application functionality | - Develop client-side logic - Implement navigation and app lifecycle management - Integrate APIs and services |
Microsoft 070-357 Exam Questions Answered
The 070-357 exam leads to the MCSA: Web Applications (legacy / retired) certification from Microsoft. It is positioned at the Associate level. The exam validates the knowledge and skills expected of candidates preparing for Microsoft Developing Mobile Apps.
Related certifications include:
- MCSA: Web Applications
The 070-357 exam includes Approximately 40–60 questions and allows 150 minutes. Before test day, divide the available time by the number of questions in a timed practice set to establish a steady per-question pace. If a difficult item starts consuming too much time, mark it for review and move forward instead of losing momentum. A full timed practice session can help you decide when to move on, when to return, and how much buffer to reserve for a final check.
The passing score for 070-357 is 700 (on a 1000 scale), and the official exam fee is USD 165 (historical, varies by region and date). Because a retake requires paying the exam fee again, use timed practice results as a readiness check before scheduling your next attempt. If your performance remains inconsistent, continue reviewing weak domains and repeat a timed session before booking the exam.
No strict prerequisites; intended for developers with experience in HTML5, JavaScript, and mobile application development concepts.
Eligibility rules can change, so confirm the current requirements on the official exam page before registering.
You can register through the official channels listed below:
The available exam delivery method is Online proctored or authorized test center (historically via Pearson VUE).
The official training options include:
After reviewing the recommended training, reinforce what you learned with Actual4dump's 55 practice questions for 070-357.
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If you purchase the corresponding 070-357 preparation material and do not pass that exam within 60 days of purchase, you may apply for a full refund under the 100% Money Back Guarantee. The request requires a scanned exam enrollment slip and the official Score Report PDF, submitted within two days after the exam. Eligible requests are processed within seven days.
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The current 070-357 outline is organized into 5 top-level domains. The first listed areas include:
- Implement application functionality
- Design and develop mobile apps
- Deployment and security
Review the Exam Topics section above for the complete outline and any nested subtopics.
Microsoft Developing Mobile Apps Sample Questions:
Hotspot Question
You are developing a Universal Windows Platform (UWP} app that processes and displays data from your company's personnel database.
Users report that one of the views in the UWP app loads slowly.
You need to optimize the load time.
How should you complete the relevant markup? To answer, select the appropriate markup segment from each list in the answer area.
Drag and Drop Question
You need to insert code at line BT19 to configure the trigger to meet the technical requirements tor User Data and Alerts.
How should you complete the code segment? To answer, drag the appropriate code segment 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.
You need to configure networking.
Which two networking technologies should you use? Each correct answer presents a complete solution.
- A. Background Transfer API
- B. Custom WebSocket class
- C. StreamWebSocket class
- D. MessageWebSocket class
- E. HttpClient class
Drag and Drop Question
You need to insert code at line AC07 to create the database entitles.
How should you complete the relevant code? To answer, drag the appropriate code segments to the correct location. 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.
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.
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